<?xml version="1.0" encoding="utf-8"?>
<!--XBRL document created with Toppan Merrill Bridge  10.5.0.8 -->
<!--Based on XBRL 2.1-->
<!--Created on: 3/28/2024 11:02:13 PM-->
<!--Modified on: 3/28/2024 11:02:13 PM-->
<xsd:schema targetNamespace="http://www.osiskodevelopmentcorp.com/20231231" attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:dei="http://xbrl.sec.gov/dei/2023" xmlns:srt-types="http://fasb.org/srt-types/2023" xmlns:deprecated="http://www.xbrl.org/2009/role/deprecated" xmlns:currency="http://xbrl.sec.gov/currency/2023" xmlns:ref="http://www.xbrl.org/2006/ref" xmlns:fact-explanatoryFact="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xl="http://www.xbrl.org/2003/XLink" xmlns:us-gaap="http://fasb.org/us-gaap/2023" xmlns:utr="http://www.xbrl.org/2009/utr" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:sic="http://xbrl.sec.gov/sic/2023" xmlns:stpr="http://xbrl.sec.gov/stpr/2023" xmlns:country="http://xbrl.sec.gov/country/2023" xmlns:enum2="http://xbrl.org/2020/extensible-enumerations-2.0" xmlns:us-roles="http://fasb.org/us-roles/2023" xmlns:net="http://www.xbrl.org/2009/role/net" xmlns:naics="http://xbrl.sec.gov/naics/2023" xmlns:ifrs-full="https://xbrl.ifrs.org/taxonomy/2023-03-23/ifrs-full" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:us-types="http://fasb.org/us-types/2023" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2022-03-31" xmlns:negated="http://www.xbrl.org/2009/role/negated" xmlns:exch="http://xbrl.sec.gov/exch/2023" xmlns:srt="http://fasb.org/srt/2023" xmlns:srt-roles="http://fasb.org/srt-roles/2023" xmlns:attributeFormDefault="unqualified" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:odv="http://www.osiskodevelopmentcorp.com/20231231">
  <xsd:annotation>
    <xsd:appinfo>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/StatementConsolidatedStatementsOfFinancialPosition" id="StatementConsolidatedStatementsOfFinancialPosition">
        <link:definition>00100 - Statement - Consolidated Statements of Financial Position</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/StatementConsolidatedStatementsOfLosss" id="StatementConsolidatedStatementsOfLosss">
        <link:definition>00200 - Statement - Consolidated Statements of Loss</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/StatementConsolidatedStatementsOfComprehensiveLoss" id="StatementConsolidatedStatementsOfComprehensiveLoss">
        <link:definition>00300 - Statement - Consolidated Statements of Comprehensive Loss</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/StatementConsolidatedStatementsOfCashFlow" id="StatementConsolidatedStatementsOfCashFlow">
        <link:definition>00400 - Statement - Consolidated Statements of Cash Flow</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureAmountsReceivableDetails" id="DisclosureAmountsReceivableDetails">
        <link:definition>40701 - Disclosure - Amounts receivable (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureInvestmentsInAssociatesAndOtherInvestmentsScheduleOfOtherInvestmentsDetails" id="DisclosureInvestmentsInAssociatesAndOtherInvestmentsScheduleOfOtherInvestmentsDetails">
        <link:definition>40902 - Disclosure - Investments in associates and other investments - Schedule of other investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureMiningInterestsScheduleOfPurchasePriceAllocationDetailss" id="DisclosureMiningInterestsScheduleOfPurchasePriceAllocationDetailss">
        <link:definition>41003 - Disclosure - Mining Interests - Schedule of Purchase Price Allocation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureOtherNonCurrentAssetsDetails" id="DisclosureOtherNonCurrentAssetsDetails">
        <link:definition>41301 - Disclosure - Other non-current assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureAccountsPayableAndAccruedLiabilitiesDetails" id="DisclosureAccountsPayableAndAccruedLiabilitiesDetails">
        <link:definition>41401 - Disclosure - Accounts payable and accrued liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureLongTermDebtSummaryOfLongTermDebtDetails" id="DisclosureLongTermDebtSummaryOfLongTermDebtDetails">
        <link:definition>41501 - Disclosure - Long-term debt - Summary of Long Term Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureDeferredConsiderationAndContingentPaymentsDetails" id="DisclosureDeferredConsiderationAndContingentPaymentsDetails">
        <link:definition>41601 - Disclosure - Deferred consideration and contingent payments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureEnvironmentalRehabilitationProvisionDetailss" id="DisclosureEnvironmentalRehabilitationProvisionDetailss">
        <link:definition>41901 - Disclosure - Environmental rehabilitation provision (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureShareCapitalAndWarrantsCapitalManagementDetails" id="DisclosureShareCapitalAndWarrantsCapitalManagementDetails">
        <link:definition>42009 - Disclosure - Share capital and warrants - Capital Management (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureIncomeTaxesComponentsOfIncomeTaxExpenseDetailss" id="DisclosureIncomeTaxesComponentsOfIncomeTaxExpenseDetailss">
        <link:definition>42201 - Disclosure - Income taxes - Components of Income Tax Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureIncomeTaxesIncomeTaxReconciliationDetails" id="DisclosureIncomeTaxesIncomeTaxReconciliationDetails">
        <link:definition>42202 - Disclosure - Income taxes - Income Tax Reconciliation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureIncomeTaxesComponentsOfDeferredTaxAssetsAndLiabilitiesDetails" id="DisclosureIncomeTaxesComponentsOfDeferredTaxAssetsAndLiabilitiesDetails">
        <link:definition>42203 - Disclosure - Income taxes - Components of Deferred Tax Assets and Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureCostOfSalesAndOtherOperatingCostsDetailss" id="DisclosureCostOfSalesAndOtherOperatingCostsDetailss">
        <link:definition>42301 - Disclosure - Cost of sales and other operating costs (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureGeneralAndAdministrativeExpensesDetails" id="DisclosureGeneralAndAdministrativeExpensesDetails">
        <link:definition>42401 - Disclosure - General and administrative expenses (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureOtherIncomeNetDetails" id="DisclosureOtherIncomeNetDetails">
        <link:definition>42501 - Disclosure - Other income, net (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureKeyManagementDetails" id="DisclosureKeyManagementDetails">
        <link:definition>42701 - Disclosure - Key Management (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureSupplementaryCashFlowsInformationDetails" id="DisclosureSupplementaryCashFlowsInformationDetails">
        <link:definition>42801 - Disclosure - Supplementary cash flows information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureFinancialRisksContractualObligationsAndCommitmentsDetails" id="DisclosureFinancialRisksContractualObligationsAndCommitmentsDetails">
        <link:definition>42902 - Disclosure - Financial risks - Contractual obligations and commitments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureSegmentedInformationDetails" id="DisclosureSegmentedInformationDetails">
        <link:definition>43201 - Disclosure - Segmented information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureCommitmentsDetails" id="DisclosureCommitmentsDetails">
        <link:definition>43301 - Disclosure - Commitments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DocumentDocumentAndEntityInformation" id="DocumentDocumentAndEntityInformation">
        <link:definition>00090 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/StatementConsolidatedStatementsOfChangesInEquity" id="StatementConsolidatedStatementsOfChangesInEquity">
        <link:definition>00500 - Statement - Consolidated Statements of Changes in Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureWarrantLiabilityTables" id="DisclosureWarrantLiabilityTables">
        <link:definition>31903 - Disclosure - Warrant Liability (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureShareCapitalAndWarrantsTables" id="DisclosureShareCapitalAndWarrantsTables">
        <link:definition>32003 - Disclosure - Share capital and warrants (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureSignificantAccountingPoliciesDetails" id="DisclosureSignificantAccountingPoliciesDetails">
        <link:definition>40301 - Disclosure - Significant Accounting Policies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureSignificantAccountingPoliciesPrincipalSubsidiariesAndGeographicLocationsDetails" id="DisclosureSignificantAccountingPoliciesPrincipalSubsidiariesAndGeographicLocationsDetails">
        <link:definition>40302 - Disclosure - Significant Accounting Policies - Principal subsidiaries and geographic locations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureCriticalAccountingEstimatesAndJudgementsDetails" id="DisclosureCriticalAccountingEstimatesAndJudgementsDetails">
        <link:definition>40501 - Disclosure - Critical accounting estimates and judgements (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureCashAndCashEquivalentsConsolidatedCashAndCashEquivalentsAndDetails" id="DisclosureCashAndCashEquivalentsConsolidatedCashAndCashEquivalentsAndDetails">
        <link:definition>40601 - Disclosure - Cash and cash equivalents - Consolidated cash and cash equivalents and (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureCashAndCashEquivalentsNarrativesDetails" id="DisclosureCashAndCashEquivalentsNarrativesDetails">
        <link:definition>40602 - Disclosure - Cash and cash equivalents - Narratives (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureInventoriesScheduleOfInventoryDetails" id="DisclosureInventoriesScheduleOfInventoryDetails">
        <link:definition>40801 - Disclosure - Inventories - Schedule of Inventory (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureInvestmentsInAssociatesAndOtherInvestmentsScheduleOfInvestmentInAssociateDetails" id="DisclosureInvestmentsInAssociatesAndOtherInvestmentsScheduleOfInvestmentInAssociateDetails">
        <link:definition>40901 - Disclosure - Investments in associates and other investments - Schedule of investment in associate (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureMiningInterestsScheduleOfMiningInterestsDetails" id="DisclosureMiningInterestsScheduleOfMiningInterestsDetails">
        <link:definition>41001 - Disclosure - Mining interests - Schedule of mining interests (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureMiningInterestsDetails" id="DisclosureMiningInterestsDetails">
        <link:definition>41002 - Disclosure - Mining Interests (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureMiningInterestsScheduleOfPurchasePriceAllocationDetails" id="DisclosureMiningInterestsScheduleOfPurchasePriceAllocationDetails">
        <link:definition>41003 - Disclosure - Mining Interests - Schedule of Purchase Price Allocation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureMiningInterestsAcquisitionOfTinticConsolidatedMetalsLlcDetails" id="DisclosureMiningInterestsAcquisitionOfTinticConsolidatedMetalsLlcDetails">
        <link:definition>41004 - Disclosure - Mining Interests - Acquisition of Tintic Consolidated Metals LLC (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosurePropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentDetails" id="DisclosurePropertyPlantAndEquipmentScheduleOfPropertyPlantAndEquipmentDetails">
        <link:definition>41101 - Disclosure - Property, plant and equipment - Schedule of Property, plant and equipment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosurePropertyPlantAndEquipmentDetails" id="DisclosurePropertyPlantAndEquipmentDetails">
        <link:definition>41102 - Disclosure - Property, plant and equipment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureExplorationAndEvaluationScheduleOfExplorationAndEvaluationAssetsDetails" id="DisclosureExplorationAndEvaluationScheduleOfExplorationAndEvaluationAssetsDetails">
        <link:definition>41201 - Disclosure - Exploration and evaluation - Schedule of exploration and evaluation assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureLongTermDebtMonthlyInstalmentsForMiningEquipmentDetails" id="DisclosureLongTermDebtMonthlyInstalmentsForMiningEquipmentDetails">
        <link:definition>41502 - Disclosure - Long-term debt - Monthly instalments for mining equipment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureContractLiabilityAdditionalInformationDetails" id="DisclosureContractLiabilityAdditionalInformationDetails">
        <link:definition>41702 - Disclosure - Contract liability - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureEnvironmentalRehabilitationProvisionDetails" id="DisclosureEnvironmentalRehabilitationProvisionDetails">
        <link:definition>41801 - Disclosure - Environmental rehabilitation provision (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureWarrantLiabilityAssumptionsUsedDetails" id="DisclosureWarrantLiabilityAssumptionsUsedDetails">
        <link:definition>41902 - Disclosure - Warrant Liability - Assumptions used (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureShareCapitalAndWarrants2023BoughtDealFinancingDetails" id="DisclosureShareCapitalAndWarrants2023BoughtDealFinancingDetails">
        <link:definition>42003 - Disclosure - Share capital and warrants - 2023 Bought Deal Financing (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureShareCapitalAndWarrants2022NonBrokeredPrivatePlacementsDetails" id="DisclosureShareCapitalAndWarrants2022NonBrokeredPrivatePlacementsDetails">
        <link:definition>42004 - Disclosure - Share capital and warrants - 2022 Non-Brokered private placements (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureShareCapitalAndWarrantsMovementsForWarrantsOutstandingDetails" id="DisclosureShareCapitalAndWarrantsMovementsForWarrantsOutstandingDetails">
        <link:definition>42005 - Disclosure - Share capital and warrants - Movements for the warrants outstanding (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureShareCapitalAndWarrantsMaturityDatesAndExerciseTermsOfWarrantsOutstandingDetails" id="DisclosureShareCapitalAndWarrantsMaturityDatesAndExerciseTermsOfWarrantsOutstandingDetails">
        <link:definition>42006 - Disclosure - Share capital and warrants - Maturity dates and exercise terms of the warrants outstanding (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureShareCapitalAndWarrantsAssumptionsUsedDetails" id="DisclosureShareCapitalAndWarrantsAssumptionsUsedDetails">
        <link:definition>42007 - Disclosure - Share capital and warrants - Assumptions used (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureShareCapitalAndWarrantsAdditionalInformationDetails" id="DisclosureShareCapitalAndWarrantsAdditionalInformationDetails">
        <link:definition>42008 - Disclosure - Share capital and warrants - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureShareBasedCompensationShareOptionsOutstandingDetails" id="DisclosureShareBasedCompensationShareOptionsOutstandingDetails">
        <link:definition>42102 - Disclosure - Share-based compensation - Share options outstanding (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureShareBasedCompensationDeferredAndRestrictedShareUnitsDetails" id="DisclosureShareBasedCompensationDeferredAndRestrictedShareUnitsDetails">
        <link:definition>42104 - Disclosure - Share-based compensation - Deferred And Restricted Share Units (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureIncomeTaxesMovementForDeferredTaxAssetsAndLiabilitiesDetails" id="DisclosureIncomeTaxesMovementForDeferredTaxAssetsAndLiabilitiesDetails">
        <link:definition>42204 - Disclosure - Income taxes - Movement for Deferred Tax Assets and Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureIncomeTaxesDetails" id="DisclosureIncomeTaxesDetails">
        <link:definition>42205 - Disclosure - Income taxes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureFinancialRisksDetails" id="DisclosureFinancialRisksDetails">
        <link:definition>42901 - Disclosure - Financial risks (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureFairValueOfFinancialInstrumentsDetails" id="DisclosureFairValueOfFinancialInstrumentsDetails">
        <link:definition>43001 - Disclosure - Fair value of financial instruments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureFairValueOfFinancialInstrumentsChangesInLevel3InvestmentsDetails" id="DisclosureFairValueOfFinancialInstrumentsChangesInLevel3InvestmentsDetails">
        <link:definition>43002 - Disclosure - Fair value of financial instruments - Changes in the Level 3 investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureRelatedPartyTransactionsDetails" id="DisclosureRelatedPartyTransactionsDetails">
        <link:definition>43101 - Disclosure - Related party transactions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureSubsequentEventsDetails" id="DisclosureSubsequentEventsDetails">
        <link:definition>43401 - Disclosure - Subsequent events (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/StatementConsolidatedStatementsOfLoss" id="StatementConsolidatedStatementsOfLoss">
        <link:definition>00200 - Statement - Consolidated Statements of Loss</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/StatementConsolidatedStatementsOfCashFlows" id="StatementConsolidatedStatementsOfCashFlows">
        <link:definition>00400 - Statement - Consolidated Statements of Cash Flows</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/StatementConsolidatedStatementsOfChangesInEquityParenthetical" id="StatementConsolidatedStatementsOfChangesInEquityParenthetical">
        <link:definition>00505 - Statement - Consolidated Statements of Changes in Equity (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureNatureOfOperationsAndGoingConcern" id="DisclosureNatureOfOperationsAndGoingConcern">
        <link:definition>10101 - Disclosure - Nature of operations and going concern</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureBasisOfPresentationAndStatementOfCompliance" id="DisclosureBasisOfPresentationAndStatementOfCompliance">
        <link:definition>10201 - Disclosure - Basis of presentation and Statement of compliance</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureSignificantAccountingPolicies" id="DisclosureSignificantAccountingPolicies">
        <link:definition>10301 - Disclosure - Significant Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureNewAccountingStandardsAndPolicies" id="DisclosureNewAccountingStandardsAndPolicies">
        <link:definition>10401 - Disclosure - New accounting standards and policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureCriticalAccountingEstimatesAndJudgements" id="DisclosureCriticalAccountingEstimatesAndJudgements">
        <link:definition>10501 - Disclosure - Critical accounting estimates and judgements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureCashAndCashEquivalents" id="DisclosureCashAndCashEquivalents">
        <link:definition>10601 - Disclosure - Cash and cash equivalents</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureAmountsReceivable" id="DisclosureAmountsReceivable">
        <link:definition>10701 - Disclosure - Amounts receivable</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureInventories" id="DisclosureInventories">
        <link:definition>10801 - Disclosure - Inventories</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureInvestmentsInAssociatesAndOtherInvestments" id="DisclosureInvestmentsInAssociatesAndOtherInvestments">
        <link:definition>10901 - Disclosure - Investments in associates and other investments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureMiningInterests" id="DisclosureMiningInterests">
        <link:definition>11001 - Disclosure - Mining interests</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosurePropertyPlantAndEquipment" id="DisclosurePropertyPlantAndEquipment">
        <link:definition>11101 - Disclosure - Property, plant and equipment</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureExplorationAndEvaluation" id="DisclosureExplorationAndEvaluation">
        <link:definition>11201 - Disclosure - Exploration and evaluation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureOtherNonCurrentAssets" id="DisclosureOtherNonCurrentAssets">
        <link:definition>11301 - Disclosure - Other non-current assets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureAccountsPayableAndAccruedLiabilities" id="DisclosureAccountsPayableAndAccruedLiabilities">
        <link:definition>11401 - Disclosure - Accounts payable and accrued liabilities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureLongTermDebt" id="DisclosureLongTermDebt">
        <link:definition>11501 - Disclosure - Long-term debt</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureDeferredConsiderationAndContingentPayments" id="DisclosureDeferredConsiderationAndContingentPayments">
        <link:definition>11601 - Disclosure - Deferred consideration and contingent payments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureContractLiability" id="DisclosureContractLiability">
        <link:definition>11701 - Disclosure - Contract liability</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureEnvironmentalRehabilitationProvision" id="DisclosureEnvironmentalRehabilitationProvision">
        <link:definition>11801 - Disclosure - Environmental rehabilitation provision</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureWarrantLiability" id="DisclosureWarrantLiability">
        <link:definition>11901 - Disclosure - Warrant Liability</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureShareCapitalAndWarrants" id="DisclosureShareCapitalAndWarrants">
        <link:definition>12001 - Disclosure - Share capital and warrants</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureShareBasedCompensation" id="DisclosureShareBasedCompensation">
        <link:definition>12101 - Disclosure - Share-based compensation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureIncomeTaxes" id="DisclosureIncomeTaxes">
        <link:definition>12201 - Disclosure - Income taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureCostOfSalesAndOtherOperatingCosts" id="DisclosureCostOfSalesAndOtherOperatingCosts">
        <link:definition>12301 - Disclosure - Cost of sales and other operating costs</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureGeneralAndAdministrativeExpenses" id="DisclosureGeneralAndAdministrativeExpenses">
        <link:definition>12401 - Disclosure - General and administrative expenses</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureOtherIncomeNet" id="DisclosureOtherIncomeNet">
        <link:definition>12501 - Disclosure - Other income, net</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureLossPerShare" id="DisclosureLossPerShare">
        <link:definition>12601 - Disclosure - Loss per share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureKeyManagement" id="DisclosureKeyManagement">
        <link:definition>12701 - Disclosure - Key Management</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureSupplementaryCashFlowsInformation" id="DisclosureSupplementaryCashFlowsInformation">
        <link:definition>12801 - Disclosure - Supplementary cash flows information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureFinancialRisks" id="DisclosureFinancialRisks">
        <link:definition>12901 - Disclosure - Financial risks</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureFairValueOfFinancialInstruments" id="DisclosureFairValueOfFinancialInstruments">
        <link:definition>13001 - Disclosure - Fair value of financial instruments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureRelatedPartyTransactions" id="DisclosureRelatedPartyTransactions">
        <link:definition>13101 - Disclosure - Related party transactions</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureSegmentedInformation" id="DisclosureSegmentedInformation">
        <link:definition>13201 - Disclosure - Segmented information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureCommitments" id="DisclosureCommitments">
        <link:definition>13301 - Disclosure - Commitments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureSubsequentEvents" id="DisclosureSubsequentEvents">
        <link:definition>13401 - Disclosure - Subsequent events</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureSignificantAccountingPoliciesPolicies" id="DisclosureSignificantAccountingPoliciesPolicies">
        <link:definition>20302 - Disclosure - Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureSignificantAccountingPoliciesTables" id="DisclosureSignificantAccountingPoliciesTables">
        <link:definition>30303 - Disclosure - Significant Accounting Policies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureCashAndCashEquivalentsTables" id="DisclosureCashAndCashEquivalentsTables">
        <link:definition>30603 - Disclosure - Cash and cash equivalents (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureAmountsReceivableTables" id="DisclosureAmountsReceivableTables">
        <link:definition>30703 - Disclosure - Amounts receivable (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureInventoriesTables" id="DisclosureInventoriesTables">
        <link:definition>30803 - Disclosure - Inventories (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureInvestmentsInAssociatesAndOtherInvestmentsTables" id="DisclosureInvestmentsInAssociatesAndOtherInvestmentsTables">
        <link:definition>30903 - Disclosure - Investments in associates and other investments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureMiningInterestsTables" id="DisclosureMiningInterestsTables">
        <link:definition>31003 - Disclosure - Mining interests (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosurePropertyPlantAndEquipmentTables" id="DisclosurePropertyPlantAndEquipmentTables">
        <link:definition>31103 - Disclosure - Property, plant and equipment (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureExplorationAndEvaluationTables" id="DisclosureExplorationAndEvaluationTables">
        <link:definition>31203 - Disclosure - Exploration and evaluation (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureOtherNonCurrentAssetsTables" id="DisclosureOtherNonCurrentAssetsTables">
        <link:definition>31303 - Disclosure - Other non-current assets (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureAccountsPayableAndAccruedLiabilitiesTables" id="DisclosureAccountsPayableAndAccruedLiabilitiesTables">
        <link:definition>31403 - Disclosure - Accounts payable and accrued liabilities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureLongTermDebtTables" id="DisclosureLongTermDebtTables">
        <link:definition>31503 - Disclosure - Long-term debt (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureDeferredConsiderationAndContingentPaymentsTables" id="DisclosureDeferredConsiderationAndContingentPaymentsTables">
        <link:definition>31603 - Disclosure - Deferred consideration and contingent payments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureContractLiabilityTables" id="DisclosureContractLiabilityTables">
        <link:definition>31703 - Disclosure - Contract liability (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureEnvironmentalRehabilitationProvisionTables" id="DisclosureEnvironmentalRehabilitationProvisionTables">
        <link:definition>31803 - Disclosure - Environmental rehabilitation provision (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureShareBasedCompensationTables" id="DisclosureShareBasedCompensationTables">
        <link:definition>32103 - Disclosure - Share-based compensation (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureIncomeTaxesTables" id="DisclosureIncomeTaxesTables">
        <link:definition>32203 - Disclosure - Income taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureCostOfSalesAndOtherOperatingCostsTables" id="DisclosureCostOfSalesAndOtherOperatingCostsTables">
        <link:definition>32303 - Disclosure - Cost of sales and other operating costs (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureGeneralAndAdministrativeExpensesTables" id="DisclosureGeneralAndAdministrativeExpensesTables">
        <link:definition>32401 - Disclosure - General and administrative expenses (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureOtherIncomeNetTables" id="DisclosureOtherIncomeNetTables">
        <link:definition>32503 - Disclosure - Other income, net (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureLossPerShareTables" id="DisclosureLossPerShareTables">
        <link:definition>32603 - Disclosure - Loss per share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureKeyManagementTables" id="DisclosureKeyManagementTables">
        <link:definition>32703 - Disclosure - Key Management (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureSupplementaryCashFlowsInformationTables" id="DisclosureSupplementaryCashFlowsInformationTables">
        <link:definition>32803 - Disclosure - Supplementary cash flows information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureFinancialRisksTables" id="DisclosureFinancialRisksTables">
        <link:definition>32903 - Disclosure - Financial risks (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureFairValueOfFinancialInstrumentsTables" id="DisclosureFairValueOfFinancialInstrumentsTables">
        <link:definition>33003 - Disclosure - Fair value of financial instruments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureSegmentedInformationTables" id="DisclosureSegmentedInformationTables">
        <link:definition>33203 - Disclosure - Segmented information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureCommitmentsTables" id="DisclosureCommitmentsTables">
        <link:definition>33303 - Disclosure - Commitments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureNatureOfOperationsAndGoingConcernDetails" id="DisclosureNatureOfOperationsAndGoingConcernDetails">
        <link:definition>40101 - Disclosure - Nature of operations and going concern (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureBasisOfPresentationAndStatementOfComplianceDetails" id="DisclosureBasisOfPresentationAndStatementOfComplianceDetails">
        <link:definition>40201 - Disclosure - Basis of presentation and Statement of compliance (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureContractLiabilityMovementOfContractLiabilityDetails" id="DisclosureContractLiabilityMovementOfContractLiabilityDetails">
        <link:definition>41701 - Disclosure - Contract liability - Movement of contract liability (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureWarrantLiabilityFairValueThroughProfitOrLossDetails" id="DisclosureWarrantLiabilityFairValueThroughProfitOrLossDetails">
        <link:definition>41901 - Disclosure - Warrant Liability - fair value through profit or loss (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureShareCapitalAndWarrantsSharesDetails" id="DisclosureShareCapitalAndWarrantsSharesDetails">
        <link:definition>42001 - Disclosure - Share capital and warrants - Shares (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureShareCapitalAndWarrantsEmployeeSharePurchasePlanDetails" id="DisclosureShareCapitalAndWarrantsEmployeeSharePurchasePlanDetails">
        <link:definition>42002 - Disclosure - Share capital and warrants - Employee Share Purchase Plan (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureShareBasedCompensationMovementOfShareOptionsOutstandingDetails" id="DisclosureShareBasedCompensationMovementOfShareOptionsOutstandingDetails">
        <link:definition>42101 - Disclosure - Share-based compensation - Movement of share options outstanding (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureShareBasedCompensationBlackScholesOptionPricingModelDetails" id="DisclosureShareBasedCompensationBlackScholesOptionPricingModelDetails">
        <link:definition>42103 - Disclosure - Share-based compensation - Black-Scholes Option Pricing Model (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureIncomeTaxesComponentsOfIncomeTaxExpenseDetails" id="DisclosureIncomeTaxesComponentsOfIncomeTaxExpenseDetails">
        <link:definition>42201 - Disclosure - Income taxes - Components of Income Tax Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureCostOfSalesAndOtherOperatingCostsDetails" id="DisclosureCostOfSalesAndOtherOperatingCostsDetails">
        <link:definition>42301 - Disclosure - Cost of sales and other operating costs (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureLossPerShareDetails" id="DisclosureLossPerShareDetails">
        <link:definition>42601 - Disclosure - Loss per share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:linkbaseRef xlink:type="simple" xlink:href="odv-20231231_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="odv-20231231_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="odv-20231231_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="odv-20231231_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:roleType roleURI="http://www.osiskodevelopmentcorp.com/role/DisclosureStandardAndCustomAxisDomainDefaults" id="DisclosureStandardAndCustomAxisDomainDefaults">
        <link:definition>99900 - Disclosure - Standard And Custom Axis Domain Defaults</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:import namespace="http://xbrl.sec.gov/country/2023" schemaLocation="https://xbrl.sec.gov/country/2023/country-2023.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/dei/2023" schemaLocation="https://xbrl.sec.gov/dei/2023/dei-2023.xsd" />
  <xsd:import namespace="http://fasb.org/srt/2023" schemaLocation="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/2022-03-31" schemaLocation="https://www.xbrl.org/dtr/type/2022-03-31/types.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/currency/2023" schemaLocation="https://xbrl.sec.gov/currency/2023/currency-2023.xsd" />
  <xsd:import namespace="https://xbrl.ifrs.org/taxonomy/2023-03-23/ifrs-full" schemaLocation="https://xbrl.ifrs.org/taxonomy/2023-03-23/full_ifrs/full_ifrs-cor_2023-03-23.xsd" />
  <xsd:element name="MiningInterests" id="odv_MiningInterests" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DeferredConsiderationAndContingentPaymentsCurrent" id="odv_DeferredConsiderationAndContingentPaymentsCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DeferredConsiderationAndContingentPaymentsNonCurrent" id="odv_DeferredConsiderationAndContingentPaymentsNonCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ExplorationAndEvaluationNetOfTaxCredits" id="odv_ExplorationAndEvaluationNetOfTaxCredits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IfrsScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" id="odv_IfrsScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IfrsScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" id="odv_IfrsScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ScheduleOfUnrecognizedDeferredTaxAssetsTableTextBlock" id="odv_ScheduleOfUnrecognizedDeferredTaxAssetsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="TaxEffectOfExpenseNotDeductibleRelatingToNonTaxablePortionOfCapitalLossesNet" id="odv_TaxEffectOfExpenseNotDeductibleRelatingToNonTaxablePortionOfCapitalLossesNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="TaxEffectOfUnrecognizedDeferredTaxAssets" id="odv_TaxEffectOfUnrecognizedDeferredTaxAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="TaxEffectOfRenunciationOfFlowThroughShares" id="odv_TaxEffectOfRenunciationOfFlowThroughShares" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="CriticalAccountingEstimatesAndJudgementsAbstract" id="odv_CriticalAccountingEstimatesAndJudgementsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="InvestmentsInAssociatesAndOtherInvestmentsDisclosureTextBlock" id="odv_InvestmentsInAssociatesAndOtherInvestmentsDisclosureTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ExplorationAndEvaluationAssetsAbstract" id="odv_ExplorationAndEvaluationAssetsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OtherNoncurrentAssetsAbstract" id="odv_OtherNoncurrentAssetsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ScheduleOfTradeAndOtherCurrentReceivablesTableTextBlock" id="odv_ScheduleOfTradeAndOtherCurrentReceivablesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ScheduleOfExplorationAndEvaluationAssetsTableTextBlock" id="odv_ScheduleOfExplorationAndEvaluationAssetsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IfrsScheduleOfOtherAssetsNoncurrentTableTextBlock" id="odv_IfrsScheduleOfOtherAssetsNoncurrentTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="TinticConsolidatedMetalsLlcMember" id="odv_TinticConsolidatedMetalsLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DeferredConsiderationRecognisedAsOfAcquisitionDate" id="odv_DeferredConsiderationRecognisedAsOfAcquisitionDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="OtherCurrentAssetsRecognisedAsOfAcquisitionDate" id="odv_OtherCurrentAssetsRecognisedAsOfAcquisitionDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="MiningAssetsRecognisedAsOfAcquisitionDate" id="odv_MiningAssetsRecognisedAsOfAcquisitionDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ExplorationAndEvaluationRecognisedAsOfAcquisitionDate" id="odv_ExplorationAndEvaluationRecognisedAsOfAcquisitionDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="OtherNoncurrentAssetsRecognisedAsOfAcquisitionDate" id="odv_OtherNoncurrentAssetsRecognisedAsOfAcquisitionDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PercentageOfRoyaltiesIssued" id="odv_PercentageOfRoyaltiesIssued" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="RoyaltiesBuybackRightExercisableTerm" id="odv_RoyaltiesBuybackRightExercisableTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ExplorationTaxCreditReceivableCurrent" id="odv_ExplorationTaxCreditReceivableCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="SalesTaxReceivableCurrent" id="odv_SalesTaxReceivableCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="InvestmentInAssociatesTransferToOtherInvestments" id="odv_InvestmentInAssociatesTransferToOtherInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="InvestmentInAssociatesGainOnDeemedDisposal" id="odv_InvestmentInAssociatesGainOnDeemedDisposal" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PropertyPlantAndEquipmentTransfers" id="odv_PropertyPlantAndEquipmentTransfers" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ExplorationAndEvaluationAssetsDepreciationCapitalized" id="odv_ExplorationAndEvaluationAssetsDepreciationCapitalized" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ExplorationAndEvaluationAssetsOtherAdjustments" id="odv_ExplorationAndEvaluationAssetsOtherAdjustments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ExplorationAndEvaluationAssetsCurrencyTranslationAdjustments" id="odv_ExplorationAndEvaluationAssetsCurrencyTranslationAdjustments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ExplorationAndEvaluationAssetsGrossCarryingAmount" id="odv_ExplorationAndEvaluationAssetsGrossCarryingAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ExplorationAndEvaluationAssetsAccumulatedImpairment" id="odv_ExplorationAndEvaluationAssetsAccumulatedImpairment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IfrsAccountsPayableAndAccruedLiabilitiesCurrentAbstract" id="odv_IfrsAccountsPayableAndAccruedLiabilitiesCurrentAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsAccountsPayableAndAccruedLiabilitiesDisclosureTextBlock" id="odv_IfrsAccountsPayableAndAccruedLiabilitiesDisclosureTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IfrsScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock" id="odv_IfrsScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IfrsAccountsPayableAndAccruedLiabilitiesCurrent" id="odv_IfrsAccountsPayableAndAccruedLiabilitiesCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="NumberOfShareOptionsOutstandingAbstract" id="odv_NumberOfShareOptionsOutstandingAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="WeightedAverageExercisePriceAbstract" id="odv_WeightedAverageExercisePriceAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsStockholdersEquityNoteStockSplitConversionRatio" id="odv_IfrsStockholdersEquityNoteStockSplitConversionRatio" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IfrsscheduleOfInventoryCurrentTableTextBlock" id="odv_IfrsscheduleOfInventoryCurrentTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CostOfSalesAndOtherOperatingCostsAbstract" id="odv_CostOfSalesAndOtherOperatingCostsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CostOfSalesAndOtherOperatingCostsTextBlock" id="odv_CostOfSalesAndOtherOperatingCostsTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ScheduleOfCostOfSalesAndOtherOperatingCostsTableTextBlock" id="odv_ScheduleOfCostOfSalesAndOtherOperatingCostsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SettlementOrPaymentOfLiabilitiesOtherProvisions" id="odv_SettlementOrPaymentOfLiabilitiesOtherProvisions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ExpenseFromShareBasedPaymentTransactionsWithEmployeesRelatingToCostOfSalesAndOperatingExpense" id="odv_ExpenseFromShareBasedPaymentTransactionsWithEmployeesRelatingToCostOfSalesAndOperatingExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="OperationalOverheadAndWriteDown" id="odv_OperationalOverheadAndWriteDown" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DepreciationExpenseCostOfSalesAndOperatingExpense" id="odv_DepreciationExpenseCostOfSalesAndOperatingExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="CostOfSalesAndOtherOperatingCosts" id="odv_CostOfSalesAndOtherOperatingCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="OreInStockpilesMember" id="odv_OreInStockpilesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsInventoryAxis" id="odv_IfrsInventoryAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsInventoryDomain" id="odv_IfrsInventoryDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TailingsMember" id="odv_TailingsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GoldInCircuitMember" id="odv_GoldInCircuitMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RefinedPreciousMetalsMember" id="odv_RefinedPreciousMetalsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SuppliesAndOtherMember" id="odv_SuppliesAndOtherMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="KeyManagementAbstract" id="odv_KeyManagementAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ScheduleOfCompensationPaidOrPayableToKeyManagementForEmployeeServicesTableTextBlock" id="odv_ScheduleOfCompensationPaidOrPayableToKeyManagementForEmployeeServicesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="KeyManagementPersonnelCompensationCostRecoveries" id="odv_KeyManagementPersonnelCompensationCostRecoveries" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="CommitmentsAbstract" id="odv_CommitmentsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ScheduleOfCommitmentsTableTextBlock" id="odv_ScheduleOfCommitmentsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IfrsOtherNonoperatingIncomeExpense" id="odv_IfrsOtherNonoperatingIncomeExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IfrsPurchaseObligation" id="odv_IfrsPurchaseObligation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="Commitments" id="odv_Commitments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CommitmentsTable" id="odv_CommitmentsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CommitmentsLineItems" id="odv_CommitmentsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OtherIncomeNetAbstract" id="odv_OtherIncomeNetAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsOtherNonoperatingIncomeAndExpenseTextBlock" id="odv_IfrsOtherNonoperatingIncomeAndExpenseTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IfrsScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock" id="odv_IfrsScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PremiumOnFlowThroughShares" id="odv_PremiumOnFlowThroughShares" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="OtherMiscellaneousNonOperatingIncomeExpense" id="odv_OtherMiscellaneousNonOperatingIncomeExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IfrsGeneralAndAdministrativeExpenseAbstract" id="odv_IfrsGeneralAndAdministrativeExpenseAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ScheduleOfGeneralAndAdministrativeExpenseTableTextBlock" id="odv_ScheduleOfGeneralAndAdministrativeExpenseTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="OtherAdministrativeExpense" id="odv_OtherAdministrativeExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DeferredAndRestrictedShareUnitsMember" id="odv_DeferredAndRestrictedShareUnitsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsInvestmentsMember" id="odv_IfrsInvestmentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="StreamInterestMember" id="odv_StreamInterestMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsOtherLiabilitiesMember" id="odv_IfrsOtherLiabilitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AdjustmentsForChangeInFairValueOfFinancialAssetsAndLiabilitiesAtFairValueThroughProfitAndLoss" id="odv_AdjustmentsForChangeInFairValueOfFinancialAssetsAndLiabilitiesAtFairValueThroughProfitAndLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AdjustmentsForPremiumOnFlowThroughShares" id="odv_AdjustmentsForPremiumOnFlowThroughShares" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IfrsPaymentsToAcquireBusinessesNetOfCashAcquired" id="odv_IfrsPaymentsToAcquireBusinessesNetOfCashAcquired" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PurchaseOfReclamationDeposit" id="odv_PurchaseOfReclamationDeposit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DeferredShareUnitsMember" id="odv_DeferredShareUnitsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IncreaseDecreaseInEquityThroughPrivatePlacementsBrokeredValue" id="odv_IncreaseDecreaseInEquityThroughPrivatePlacementsBrokeredValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncreaseDecreaseInEquityThroughPrivatePlacementsSharesBrokered" id="odv_IncreaseDecreaseInEquityThroughPrivatePlacementsSharesBrokered" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IncreaseDecreaseInEquityThroughPrivatePlacementsNonBrokeredValue" id="odv_IncreaseDecreaseInEquityThroughPrivatePlacementsNonBrokeredValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncreaseDecreaseInEquityThroughPrivatePlacementsSharesNonBrokered" id="odv_IncreaseDecreaseInEquityThroughPrivatePlacementsSharesNonBrokered" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IncreaseDecreaseInEquityThroughEmployeeSharePurchasePlansValue" id="odv_IncreaseDecreaseInEquityThroughEmployeeSharePurchasePlansValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncreaseDecreaseInEquityThroughAcquisitionShares" id="odv_IncreaseDecreaseInEquityThroughAcquisitionShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IncreaseDecreaseInEquityThroughRedemptionOfEquityInstrumentsOtherThanOptions" id="odv_IncreaseDecreaseInEquityThroughRedemptionOfEquityInstrumentsOtherThanOptions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ShareConsolidationRatio" id="odv_ShareConsolidationRatio" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="UnrealizedLossesOnInvestmentsMember" id="odv_UnrealizedLossesOnInvestmentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsBusinessCombinationAcquisitionRelatedCosts" id="odv_IfrsBusinessCombinationAcquisitionRelatedCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PercentageOfNsrRoyaltiesIssued" id="odv_PercentageOfNsrRoyaltiesIssued" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IfrsScheduleOfCashAndCashEquivalentsTableTextBlock" id="odv_IfrsScheduleOfCashAndCashEquivalentsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="MexicoOperatingSegmentMember" id="odv_MexicoOperatingSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ReclamationDepositsNoncurrent" id="odv_ReclamationDepositsNoncurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IfrsInventoryCurrentTable" id="odv_IfrsInventoryCurrentTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsInventoryLineItems" id="odv_IfrsInventoryLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsScheduleOfCashAndCashEquivalentsTable" id="odv_IfrsScheduleOfCashAndCashEquivalentsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsCashAndCashEquivalentsLineItems" id="odv_IfrsCashAndCashEquivalentsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AdditionsThroughBusinessCombinationsExplorationAndEvaluationAssets" id="odv_AdditionsThroughBusinessCombinationsExplorationAndEvaluationAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AdditionsOtherThanThroughBusinessCombinationsExplorationAndEvaluationAssets" id="odv_AdditionsOtherThanThroughBusinessCombinationsExplorationAndEvaluationAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DisclosureOfWorkingCapitalAbstract" id="odv_DisclosureOfWorkingCapitalAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ChangesInWorkingCapitalTextBlock" id="odv_ChangesInWorkingCapitalTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DisclosureOfChangesInWorkingCapitalTableTextBlock" id="odv_DisclosureOfChangesInWorkingCapitalTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ChangesInNonCashWorkingCapitalItemsAbstract" id="odv_ChangesInNonCashWorkingCapitalItemsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AdjustmentsForAccountsPayableAndAccruedLiabilities" id="odv_AdjustmentsForAccountsPayableAndAccruedLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IncreaseDecreaseInProfitLossFinancialInstrumentDueToReasonablyPossibleChangeInDesignatedRiskComponent" id="odv_IncreaseDecreaseInProfitLossFinancialInstrumentDueToReasonablyPossibleChangeInDesignatedRiskComponent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncreaseDecreaseInOtherComprehensiveIncomeLossDueToReasonablyPossibleChangeInDesignatedRiskComponent" id="odv_IncreaseDecreaseInOtherComprehensiveIncomeLossDueToReasonablyPossibleChangeInDesignatedRiskComponent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PercentageOfReasonablyPossibleChangesInRiskAssumption" id="odv_PercentageOfReasonablyPossibleChangesInRiskAssumption" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="PercentageOfIncreaseDecreaseInEquityPricesOfLongTermInvestments" id="odv_PercentageOfIncreaseDecreaseInEquityPricesOfLongTermInvestments" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="WarrantsOnEquitySecuritiesPubliclyTradedMiningExplorationAndDevelopmentCompaniesPreciousMetalsMember" id="odv_WarrantsOnEquitySecuritiesPubliclyTradedMiningExplorationAndDevelopmentCompaniesPreciousMetalsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EquitySecuritiesPubliclyTradedMiningExplorationAndDevelopmentCompaniesPreciousMetalsMember" id="odv_EquitySecuritiesPubliclyTradedMiningExplorationAndDevelopmentCompaniesPreciousMetalsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EquitySecuritiesPubliclyTradedMiningExplorationAndDevelopmentCompaniesOtherMineralsMember" id="odv_EquitySecuritiesPubliclyTradedMiningExplorationAndDevelopmentCompaniesOtherMineralsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MiningInterestsAbstract" id="odv_MiningInterestsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MiningInterestsTextBlock" id="odv_MiningInterestsTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DisclosureOfDetailedInformationAboutMiningInterestsTableTextBlock" id="odv_DisclosureOfDetailedInformationAboutMiningInterestsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AcquisitionsThroughBusinessCombinationsMiningAssets" id="odv_AcquisitionsThroughBusinessCombinationsMiningAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AdditionsOtherThanThroughBusinessCombinationsMiningAssets" id="odv_AdditionsOtherThanThroughBusinessCombinationsMiningAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="MiningTaxCredit" id="odv_MiningTaxCredit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AssetRetirementObligationsMiningAssets" id="odv_AssetRetirementObligationsMiningAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DepreciationMiningAssets" id="odv_DepreciationMiningAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ShareBasedCompensationMiningAssets" id="odv_ShareBasedCompensationMiningAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ImpairmentLossRecognisedInProfitOrLossMiningAssets" id="odv_ImpairmentLossRecognisedInProfitOrLossMiningAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IncreaseDecreaseThroughOtherChangesMiningAssets" id="odv_IncreaseDecreaseThroughOtherChangesMiningAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IncreaseDecreaseThroughNetExchangeDifferencesMiningAssets" id="odv_IncreaseDecreaseThroughNetExchangeDifferencesMiningAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PercentageOfRoyaltyOnGoldAndSilverStream" id="odv_PercentageOfRoyaltyOnGoldAndSilverStream" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="InterestInPropertyAndMineralRightsHeldAsSecurity" id="odv_InterestInPropertyAndMineralRightsHeldAsSecurity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IfrsMineralPropertiesAccumulatedImpairment" id="odv_IfrsMineralPropertiesAccumulatedImpairment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="NetEstimatedRecoverableAmountMiningAssets" id="odv_NetEstimatedRecoverableAmountMiningAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="MineralPropertiesImpairmentLoss" id="odv_MineralPropertiesImpairmentLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NumberOfBasisPointsHigherThanManagementEstimate" id="odv_NumberOfBasisPointsHigherThanManagementEstimate" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="NatureOfOperationsAbstract" id="odv_NatureOfOperationsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsNatureOfOperationsTextBlock" id="odv_IfrsNatureOfOperationsTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="WorkingCapital" id="odv_WorkingCapital" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="BarkervilleGoldMinesLtd.Member" id="odv_BarkervilleGoldMinesLtd.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SapuchiMineraS.DeR.l.DeC.v.Member" id="odv_SapuchiMineraS.DeR.l.DeC.v.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsSaleOfStockAxis" id="odv_IfrsSaleOfStockAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsSaleOfStockDomain" id="odv_IfrsSaleOfStockDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfUnitsIssuedDuringPeriod" id="odv_NumberOfUnitsIssuedDuringPeriod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="IfrsSharesIssuedPricePerShare" id="odv_IfrsSharesIssuedPricePerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="GrossProceedsFromIssuanceOfUnits" id="odv_GrossProceedsFromIssuanceOfUnits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NumberOfCommonSharesIncludedInEachUnit" id="odv_NumberOfCommonSharesIncludedInEachUnit" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="NumberOfWarrantsIncludedInEachUnit" id="odv_NumberOfWarrantsIncludedInEachUnit" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="IfrsClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight" id="odv_IfrsClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="IfrsClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" id="odv_IfrsClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="IfrsWarrantsAndRightsOutstandingTerm" id="odv_IfrsWarrantsAndRightsOutstandingTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="EstimatedInflationAdjustedUndiscountedCashFlowsRequiredToSettleEnvironmentalRehabilitation" id="odv_EstimatedInflationAdjustedUndiscountedCashFlowsRequiredToSettleEnvironmentalRehabilitation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="WeightedAverageActualizationRate" id="odv_WeightedAverageActualizationRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="RevisionOfEstimatesOtherProvisions" id="odv_RevisionOfEstimatesOtherProvisions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AccretionExpenseOtherProvisions" id="odv_AccretionExpenseOtherProvisions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="BasisOfPresentationAbstract" id="odv_BasisOfPresentationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsAccountingPoliciesAbstract" id="odv_IfrsAccountingPoliciesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BasisOfMeasurementPolicyPolicyTextBlock" id="odv_BasisOfMeasurementPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ContractLiabilityPolicyPolicyTextBlock" id="odv_ContractLiabilityPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FurnitureAndOfficeEquipmentMember" id="odv_FurnitureAndOfficeEquipmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ShareIssuedFromRsuDsuRedemption" id="odv_ShareIssuedFromRsuDsuRedemption" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="WarrantsAndConvertibleLoanMember" id="odv_WarrantsAndConvertibleLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BusinessAcquisitionFairValueMeasurementAssets" id="odv_BusinessAcquisitionFairValueMeasurementAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ChangeInFairValueWarrantsExercisedFairValueMeasurementAssets" id="odv_ChangeInFairValueWarrantsExercisedFairValueMeasurementAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ChangeInFairValueExpiredFairValueMeasurementAssets" id="odv_ChangeInFairValueExpiredFairValueMeasurementAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ChangeInFairValueHeldAtEndFairValueMeasurementAssets" id="odv_ChangeInFairValueHeldAtEndFairValueMeasurementAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AdministrativeLegalAndTechnicalExpensesRelatedPartyTransactions" id="odv_AdministrativeLegalAndTechnicalExpensesRelatedPartyTransactions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DonationsMadeByEntityRelatedPartyTransactions" id="odv_DonationsMadeByEntityRelatedPartyTransactions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="TaxEffectOnShareOfEquityAssociateLoss" id="odv_TaxEffectOnShareOfEquityAssociateLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="LegalAndOtherConsultingFees" id="odv_LegalAndOtherConsultingFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NetCurrencyExposure" id="odv_NetCurrencyExposure" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NetExposureInFunctionalCurrency" id="odv_NetExposureInFunctionalCurrency" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IfrsAccountsPayableMember" id="odv_IfrsAccountsPayableMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsCashMember" id="odv_IfrsCashMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ScheduleOfCurrencyExposureTableTextBlock" id="odv_ScheduleOfCurrencyExposureTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="OwnershipInterestHeldByFormerParentCompany." id="odv_OwnershipInterestHeldByFormerParentCompany." type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IncreaseDecreaseDueToCurrencyTranslationAdjustments" id="odv_IncreaseDecreaseDueToCurrencyTranslationAdjustments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DisclosureOfSubsidiariesByGeographicalLocationTableTextBlock" id="odv_DisclosureOfSubsidiariesByGeographicalLocationTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IfrsAccountingStandardsUpdateAndChangeInAccountingPrincipleAbstract" id="odv_IfrsAccountingStandardsUpdateAndChangeInAccountingPrincipleAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsAccountingStandardsUpdateAndChangeInAccountingPrincipleTextBlock" id="odv_IfrsAccountingStandardsUpdateAndChangeInAccountingPrincipleTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ScheduleOfSignificantChangesInContractLiabilitiesTableTextBlock" id="odv_ScheduleOfSignificantChangesInContractLiabilitiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FairValueThroughProfitOrLossWarrantsAndConvertibleLoanRollforwardAbstract" id="odv_FairValueThroughProfitOrLossWarrantsAndConvertibleLoanRollforwardAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OtherInvestmentInWarrantsAndConvertibleLoanFairValueThroughProfitOrLoss" id="odv_OtherInvestmentInWarrantsAndConvertibleLoanFairValueThroughProfitOrLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="OtherInvestmentInWarrantsAndConvertibleLoanFairValueThroughProfitOrLossAcquisitions" id="odv_OtherInvestmentInWarrantsAndConvertibleLoanFairValueThroughProfitOrLossAcquisitions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="OtherInvestmentInWarrantsAndConvertibleLoanFairValueThroughProfitOrLossExercises" id="odv_OtherInvestmentInWarrantsAndConvertibleLoanFairValueThroughProfitOrLossExercises" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="OtherInvestmentsWarrantsAndConvertibleLoanFairValueThroughProfitOrLossIncreaseDecreaseInFairValue" id="odv_OtherInvestmentsWarrantsAndConvertibleLoanFairValueThroughProfitOrLossIncreaseDecreaseInFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="OtherInvestmentInWarrantsAndConvertibleLoanFairValueThroughProfitOrLossForeignExchange" id="odv_OtherInvestmentInWarrantsAndConvertibleLoanFairValueThroughProfitOrLossForeignExchange" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="FairValueThroughOtherComprehensiveIncomeSharesRollforwardAbstract" id="odv_FairValueThroughOtherComprehensiveIncomeSharesRollforwardAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OtherInvestmentsFairValueThroughOtherComprehensiveIncomeAcquisitions" id="odv_OtherInvestmentsFairValueThroughOtherComprehensiveIncomeAcquisitions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="OtherInvestmentsFairValueThroughOtherComprehensiveIncomeDisposals" id="odv_OtherInvestmentsFairValueThroughOtherComprehensiveIncomeDisposals" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="OtherInvestmentsFairValueThroughOtherComprehensiveIncomeIncreaseDecreaseInFairValue" id="odv_OtherInvestmentsFairValueThroughOtherComprehensiveIncomeIncreaseDecreaseInFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="OtherInvestmentsFairValueThroughOtherComprehensiveIncomeTransferFromAssociates" id="odv_OtherInvestmentsFairValueThroughOtherComprehensiveIncomeTransferFromAssociates" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IncreaseDecreaseResultingFromDepositsFromCustomersToRevenueContractLiabilities" id="odv_IncreaseDecreaseResultingFromDepositsFromCustomersToRevenueContractLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncreaseDecreaseResultingFromAccretionOnContractLiabilitysFinancingComponentToRevenueContractLiabilities" id="odv_IncreaseDecreaseResultingFromAccretionOnContractLiabilitysFinancingComponentToRevenueContractLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncreaseDecreaseResultingFromCurrencyTranslationAdjustmentToRevenueContractLiabilities" id="odv_IncreaseDecreaseResultingFromCurrencyTranslationAdjustmentToRevenueContractLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="SapuchiMineraHoldingsTwoB.v.Member" id="odv_SapuchiMineraHoldingsTwoB.v.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OsiskoBermudaLtdMember" id="odv_OsiskoBermudaLtdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ContractLiabilityTransactionPrice" id="odv_ContractLiabilityTransactionPrice" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ContractLiabilityPercentageOfPayableGoldAndSilverToBePurchasedByRelatedParty" id="odv_ContractLiabilityPercentageOfPayableGoldAndSilverToBePurchasedByRelatedParty" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ContractLiabilityPriceAsPercentageOfDailyPerOunceGoldAndSilverMarketPrice" id="odv_ContractLiabilityPriceAsPercentageOfDailyPerOunceGoldAndSilverMarketPrice" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ContractLiabilityInitialTermOfStreamAgreement" id="odv_ContractLiabilityInitialTermOfStreamAgreement" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ContractLiabilityRenewalTermOfStreamAgreement" id="odv_ContractLiabilityRenewalTermOfStreamAgreement" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ContractLiabilityReceivableAsPercentageOfRefinedMetalProduction" id="odv_ContractLiabilityReceivableAsPercentageOfRefinedMetalProduction" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ContractLiabilityThresholdOuncesOfRefinedGoldToBeDelivered" id="odv_ContractLiabilityThresholdOuncesOfRefinedGoldToBeDelivered" type="dtr-types:massItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ContractLiabilityOngoingCashPaymentsAsPercentageOfApplicableSpotMetalPrice" id="odv_ContractLiabilityOngoingCashPaymentsAsPercentageOfApplicableSpotMetalPrice" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ContractLiabilityInterestRateUsedToCalculateAccretionOnContractLiabilitysFinancingComponent" id="odv_ContractLiabilityInterestRateUsedToCalculateAccretionOnContractLiabilitysFinancingComponent" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ScheduleOfMovementsForWarrantsOutstandingTableTextBlock" id="odv_ScheduleOfMovementsForWarrantsOutstandingTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="BrokeredPrivatePlacement2022Member" id="odv_BrokeredPrivatePlacement2022Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BrokeredUnitsMember" id="odv_BrokeredUnitsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BrokeredSubscriptionReceiptsMember" id="odv_BrokeredSubscriptionReceiptsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PreShareConsolidationMember" id="odv_PreShareConsolidationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfReceiptsIssuedDuringPeriod" id="odv_NumberOfReceiptsIssuedDuringPeriod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PricePerReceiptIssued" id="odv_PricePerReceiptIssued" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="GrossProceedsFromIssuanceOfReceipts" id="odv_GrossProceedsFromIssuanceOfReceipts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NumberOfUnitsIssuedToEachSubscriptionReceiptHolders" id="odv_NumberOfUnitsIssuedToEachSubscriptionReceiptHolders" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="IfrsStockIssuedDuringPeriodSharesNewIssues" id="odv_IfrsStockIssuedDuringPeriodSharesNewIssues" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="TrancheAxis" id="odv_TrancheAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TrancheDomain" id="odv_TrancheDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NonBrokeredPrivatePlacement2022Member" id="odv_NonBrokeredPrivatePlacement2022Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NonBrokeredSubscriptionReceiptsMember" id="odv_NonBrokeredSubscriptionReceiptsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FirstTrancheMember" id="odv_FirstTrancheMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SecondTrancheMember" id="odv_SecondTrancheMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ThirdTranchMember" id="odv_ThirdTranchMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfTranches" id="odv_NumberOfTranches" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="HoldingPeriodOfSecurities" id="odv_HoldingPeriodOfSecurities" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="WarrantsIssueRelatedCost" id="odv_WarrantsIssueRelatedCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ExpectedLifeMeasurementInputMember" id="odv_ExpectedLifeMeasurementInputMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SharePriceUsdMeasurementInputMember" id="odv_SharePriceUsdMeasurementInputMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EmployeeSharePurchasePlanEmployerContributionPercent" id="odv_EmployeeSharePurchasePlanEmployerContributionPercent" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="EmployeeSharePurchasePlanMaximumEmployeeContributionAsPercentOfIssuedAndOutstandingShares" id="odv_EmployeeSharePurchasePlanMaximumEmployeeContributionAsPercentOfIssuedAndOutstandingShares" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="BrokeredPrivatePlacementMember" id="odv_BrokeredPrivatePlacementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NonBrokeredPrivatePlacementMember" id="odv_NonBrokeredPrivatePlacementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfWarrantsAbstract" id="odv_NumberOfWarrantsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsClassOfWarrantOrRightOutstanding" id="odv_IfrsClassOfWarrantOrRightOutstanding" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="WarrantsIssuedDuringPeriod" id="odv_WarrantsIssuedDuringPeriod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="WarrantsExpiredDuringPeriod" id="odv_WarrantsExpiredDuringPeriod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRightsIssued" id="odv_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRightsIssued" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRightsExpired" id="odv_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRightsExpired" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ExercisePrice22.86Member" id="odv_ExercisePrice22.86Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ExercisePrice24.30Member" id="odv_ExercisePrice24.30Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ExercisePrice21.30Member" id="odv_ExercisePrice21.30Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ExercisePrice16.89Member" id="odv_ExercisePrice16.89Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ExercisePrice16.20Member" id="odv_ExercisePrice16.20Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ExercisePrice6.49Member" id="odv_ExercisePrice6.49Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ExercisePrice6.28Member" id="odv_ExercisePrice6.28Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfInstrumentsOtherThanEquityInstrumentsSettled" id="odv_NumberOfInstrumentsOtherThanEquityInstrumentsSettled" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="NumberOfCommonShareToBeIssuedForEachDeferredShareUnit" id="odv_NumberOfCommonShareToBeIssuedForEachDeferredShareUnit" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IfrsSharePrice" id="odv_IfrsSharePrice" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="MarginalTaxRate" id="odv_MarginalTaxRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="EstimatedAmountToBeTransferredToTaxAuthoritiesSettledInEquityAmountOtherThanEquityInstrumentsVested" id="odv_EstimatedAmountToBeTransferredToTaxAuthoritiesSettledInEquityAmountOtherThanEquityInstrumentsVested" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="EstimatedAmountToBeTransferredToTaxAuthoritiesSettledInEquityAmountsOtherThanEquityInstrumentsOutstanding" id="odv_EstimatedAmountToBeTransferredToTaxAuthoritiesSettledInEquityAmountsOtherThanEquityInstrumentsOutstanding" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IfrsWarrantMember" id="odv_IfrsWarrantMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsTypeOfArrangementAxis" id="odv_IfrsTypeOfArrangementAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsArrangementsAndNonArrangementTransactionsDomain" id="odv_IfrsArrangementsAndNonArrangementTransactionsDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MetalsStreamAgreementMember" id="odv_MetalsStreamAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GoldAndSilverStreamAgreementMember" id="odv_GoldAndSilverStreamAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AdjustmentsForGainLossInFairValueOfWarrantLiability" id="odv_AdjustmentsForGainLossInFairValueOfWarrantLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ProvisionForValueAddedTaxReceivables" id="odv_ProvisionForValueAddedTaxReceivables" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="FairValueOfDeferredConsideration" id="odv_FairValueOfDeferredConsideration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncreaseDecreaseInEquityThroughEmployeeSharePurchasePlanShares" id="odv_IncreaseDecreaseInEquityThroughEmployeeSharePurchasePlanShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PercentageOfLongTermGoldPricePerOunceAppliedToCashFlowProjectionsLowerThanManagementEstimates" id="odv_PercentageOfLongTermGoldPricePerOunceAppliedToCashFlowProjectionsLowerThanManagementEstimates" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="TaxEffectOfDeferredPremiumOnFlowThroughShares" id="odv_TaxEffectOfDeferredPremiumOnFlowThroughShares" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="WarrantsExercisedFairValueMeasurementAssets" id="odv_WarrantsExercisedFairValueMeasurementAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="CashFlowProjectionsTenPercentLowerThanManagementEstimatesMember" id="odv_CashFlowProjectionsTenPercentLowerThanManagementEstimatesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CashFlowProjectionsHundredBasisPointsHigherThanManagementEstimatesMember" id="odv_CashFlowProjectionsHundredBasisPointsHigherThanManagementEstimatesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AdjustmentsForIncreaseDecreaseInContractLiabilitiesFromCumulativeCatchUpAdjustment" id="odv_AdjustmentsForIncreaseDecreaseInContractLiabilitiesFromCumulativeCatchUpAdjustment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PercentageOfClaimableRefundOfSalesTaxesPaidOnAllowableExpenditure" id="odv_PercentageOfClaimableRefundOfSalesTaxesPaidOnAllowableExpenditure" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PercentageOfCollectabilityOfSalesTaxReceivableBalance" id="odv_PercentageOfCollectabilityOfSalesTaxReceivableBalance" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="EstimatedCollectionPeriodOfSalesTaxReceivableBalance" id="odv_EstimatedCollectionPeriodOfSalesTaxReceivableBalance" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="BusinessCombinationConvertibleInstrumentsOfAcquirer" id="odv_BusinessCombinationConvertibleInstrumentsOfAcquirer" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="Taxeffectofexpensesnotdeductibleindeterminingtaxableprofittaxloss" id="odv_Taxeffectofexpensesnotdeductibleindeterminingtaxableprofittaxloss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CashPaymentsOnDeferredConsiderationAndContingentPayments" id="odv_CashPaymentsOnDeferredConsiderationAndContingentPayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PaymentsForWithholdingTaxesOnSettlementOfRestrictedUnits" id="odv_PaymentsForWithholdingTaxesOnSettlementOfRestrictedUnits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncreaseInEquityThroughBoughtDealFinancingEquity" id="odv_IncreaseInEquityThroughBoughtDealFinancingEquity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncreaseInEquityThroughSharesIssuedToWilliamsLakeFirstNation" id="odv_IncreaseInEquityThroughSharesIssuedToWilliamsLakeFirstNation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncreaseInShareThroughBoughtDealFinancingEquity" id="odv_IncreaseInShareThroughBoughtDealFinancingEquity" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IncreaseInSharesThroughSharesIssuedToWilliamsLakeFirstNation" id="odv_IncreaseInSharesThroughSharesIssuedToWilliamsLakeFirstNation" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IncreaseDecreaseThroughChangeInFairValueRelatedToWarrantsModificationEquity" id="odv_IncreaseDecreaseThroughChangeInFairValueRelatedToWarrantsModificationEquity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IncreaseDecreaseThroughShareBasedPaymentTransactionsShareOptionsEquity" id="odv_IncreaseDecreaseThroughShareBasedPaymentTransactionsShareOptionsEquity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncreaseDecreaseThroughShareBasedPaymentTransactionsRestrictedAndDeferredShareUnitsEquity" id="odv_IncreaseDecreaseThroughShareBasedPaymentTransactionsRestrictedAndDeferredShareUnitsEquity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DeferredConsiderationAndContingentPaymentsAbstract" id="odv_DeferredConsiderationAndContingentPaymentsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DeferredConsiderationAndContingentPaymentsDisclosureTextBlock" id="odv_DeferredConsiderationAndContingentPaymentsDisclosureTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ScheduleOfDeferredConsiderationAndContingentPaymentsTableTextBlock" id="odv_ScheduleOfDeferredConsiderationAndContingentPaymentsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DeferredConsiderationAndContingentPayment" id="odv_DeferredConsiderationAndContingentPayment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DeferredConsiderationAndContingentPaymentsAdditions" id="odv_DeferredConsiderationAndContingentPaymentsAdditions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DeferredConsiderationAndContingentPaymentsInterest" id="odv_DeferredConsiderationAndContingentPaymentsInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DeferredConsiderationAndContingentPaymentsRepayment" id="odv_DeferredConsiderationAndContingentPaymentsRepayment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DeferredConsiderationAndContingentPaymentsForeignExchange" id="odv_DeferredConsiderationAndContingentPaymentsForeignExchange" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DeferredConsiderationAndContingentsPayments" id="odv_DeferredConsiderationAndContingentsPayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="BoughtDealFinancing2023Member" id="odv_BoughtDealFinancing2023Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GeneralAndAdministrativeExpenseRelatedToStockExchanges" id="odv_GeneralAndAdministrativeExpenseRelatedToStockExchanges" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ExercisePrice6.59Member" id="odv_ExercisePrice6.59Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="WarrantLiabilityAbstract" id="odv_WarrantLiabilityAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DisclosureOfWarrantLiabilityTextBlock" id="odv_DisclosureOfWarrantLiabilityTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ExercisePriceUsdMeasurementInputMember" id="odv_ExercisePriceUsdMeasurementInputMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ScheduleOfWarrantsFairValueThroughProfitOrLossTableTextBlock" id="odv_ScheduleOfWarrantsFairValueThroughProfitOrLossTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FairValueThroughProfitOrLossWarrantsAdditions" id="odv_FairValueThroughProfitOrLossWarrantsAdditions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncreaseDecreaseInWarrantsLiabilityThroughForeignExchange" id="odv_IncreaseDecreaseInWarrantsLiabilityThroughForeignExchange" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="WeightedAverageRemainingContractualLifeOfExercisableShareOptions2019" id="odv_WeightedAverageRemainingContractualLifeOfExercisableShareOptions2019" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element id="odv_DeprecatedDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory" name="DeprecatedDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2022-03-31" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" />
  <xsd:element name="IncreaseInSharesThroughSettlementOfDeferredConsiderationEquity" id="odv_IncreaseInSharesThroughSettlementOfDeferredConsiderationEquity" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IncreaseThroughSettlementOfDeferredConsiderationEquity" id="odv_IncreaseThroughSettlementOfDeferredConsiderationEquity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="OtherInvestmentsFairValueThroughOtherComprehensiveIncomeConsiderationReceivedFromDisposalOfExplorationProperties" id="odv_OtherInvestmentsFairValueThroughOtherComprehensiveIncomeConsiderationReceivedFromDisposalOfExplorationProperties" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DeferredFinancingFeesNoncurrent" id="odv_DeferredFinancingFeesNoncurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DeferredConsiderationAndContingentPaymentsSettlement" id="odv_DeferredConsiderationAndContingentPaymentsSettlement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DisclosureOfDetailedInformationAboutOutstandingWarrantsExplanatoryTableTextBlock" id="odv_DisclosureOfDetailedInformationAboutOutstandingWarrantsExplanatoryTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AcquisitionOfRestrictedCash" id="odv_AcquisitionOfRestrictedCash" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ProceedsFromBorrowingsAndCapitalLeasesClassifiedAsFinancingActivities" id="odv_ProceedsFromBorrowingsAndCapitalLeasesClassifiedAsFinancingActivities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IfrsMoneyMarketFundsMember" id="odv_IfrsMoneyMarketFundsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CreditAgreementWithNationalBankOfCanadaMember" id="odv_CreditAgreementWithNationalBankOfCanadaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NewCreditAgreementMember" id="odv_NewCreditAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsLineOfCreditFacilityMaximumBorrowingCapacity" id="odv_IfrsLineOfCreditFacilityMaximumBorrowingCapacity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="InvestmentInAssociatesConsiderationReceivedFromDisposalOfSubsidiaries" id="odv_InvestmentInAssociatesConsiderationReceivedFromDisposalOfSubsidiaries" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NumberOfSharesReceivedUponDisposalOfSubsidiaries" id="odv_NumberOfSharesReceivedUponDisposalOfSubsidiaries" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ElectricElementsMiningCorpMember" id="odv_ElectricElementsMiningCorpMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SanAntonioPropertyMember" id="odv_SanAntonioPropertyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TinticPropertiesMember" id="odv_TinticPropertiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PercentageOfRoyaltyOnAllRefinedMetalsStream" id="odv_PercentageOfRoyaltyOnAllRefinedMetalsStream" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="TrixieTestMiningPropertiesMember" id="odv_TrixieTestMiningPropertiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CaribooGoldProjectMember" id="odv_CaribooGoldProjectMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PercentageOfNetSmelterReturn" id="odv_PercentageOfNetSmelterReturn" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AggregateConsiderationForSaleOfPropertyPlantAndEquipment" id="odv_AggregateConsiderationForSaleOfPropertyPlantAndEquipment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IfrsEquipmentMember" id="odv_IfrsEquipmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AdvancesForMiningEquipmentAndOtherAssetsNoncurrent" id="odv_AdvancesForMiningEquipmentAndOtherAssetsNoncurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IfrsDebtInstrumentTerm" id="odv_IfrsDebtInstrumentTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="BorrowingsIncreaseInInterestRatePerAnnum" id="odv_BorrowingsIncreaseInInterestRatePerAnnum" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="BorrowingsNumberOfDaysAtWhichInterestRatePerAnnumShallBeIncreased" id="odv_BorrowingsNumberOfDaysAtWhichInterestRatePerAnnumShallBeIncreased" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="BaseRateLoanMember" id="odv_BaseRateLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TermBenchmarkLoanMember" id="odv_TermBenchmarkLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsFedFundsEffectiveRateOvernightIndexSwapRateMember" id="odv_IfrsFedFundsEffectiveRateOvernightIndexSwapRateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NationalBankVariableRateOfInterestForUnitedStatesDollarLoansInCanadaMember" id="odv_NationalBankVariableRateOfInterestForUnitedStatesDollarLoansInCanadaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsSecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember" id="odv_IfrsSecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OneMonthSecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember" id="odv_OneMonthSecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ThreeMonthSecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember" id="odv_ThreeMonthSecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SixMonthSecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember" id="odv_SixMonthSecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MaturityAnalysisForContractualObligationsAndCommitmentsExplanatoryTableTextBlock" id="odv_MaturityAnalysisForContractualObligationsAndCommitmentsExplanatoryTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IfrsBorrowingsUndiscountedCashFlows" id="odv_IfrsBorrowingsUndiscountedCashFlows" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DeferredConsiderationAndContingentPaymentsUndiscountedCashFlows" id="odv_DeferredConsiderationAndContingentPaymentsUndiscountedCashFlows" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PurchaseObligationsUndiscountedCashFlows" id="odv_PurchaseObligationsUndiscountedCashFlows" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CapitalCommitmentsUndiscountedCashFlows" id="odv_CapitalCommitmentsUndiscountedCashFlows" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DeferredTaxExpenseIncomeRecognizedInStatementOfIncomeLoss" id="odv_DeferredTaxExpenseIncomeRecognizedInStatementOfIncomeLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="LongTermGoldPricePerOunceAppliedCashFlowProjectionsTenPercentLowerThanManagementEstimatesMember" id="odv_LongTermGoldPricePerOunceAppliedCashFlowProjectionsTenPercentLowerThanManagementEstimatesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ExpectedNumberOfContainedOuncesOfGoldAppliedToCashFlowProjectionsTenPercentLowerThanManagementEstimatesMember" id="odv_ExpectedNumberOfContainedOuncesOfGoldAppliedToCashFlowProjectionsTenPercentLowerThanManagementEstimatesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CapitalReserveLongTermDebt" id="odv_CapitalReserveLongTermDebt" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CapitalReserveEquity" id="odv_CapitalReserveEquity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="OptionExpectedLife" id="odv_OptionExpectedLife" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IfrsLeaseObligationsUndiscountedCashFlows" id="odv_IfrsLeaseObligationsUndiscountedCashFlows" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ScheduleOfCapitalManagementTableTextBlock" id="odv_ScheduleOfCapitalManagementTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
</xsd:schema>
