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  <xs:element id="efr_MiscellaneousNonCashIncomeExpenses" abstract="false" name="MiscellaneousNonCashIncomeExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="efr_DebtSecuritiesTradingAndEquityAccumulatedGrossUnrealizedGainBeforeTax" abstract="false" name="DebtSecuritiesTradingAndEquityAccumulatedGrossUnrealizedGainBeforeTax" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="efr_RoyaltyPercentageofMineralsRecoveredSoldAboveMaximumPriceThreshold" abstract="false" name="RoyaltyPercentageofMineralsRecoveredSoldAboveMaximumPriceThreshold" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="efr_RestrictedCashAndCashEquivalentsRollForward" abstract="true" name="RestrictedCashAndCashEquivalentsRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="efr_SheepMountainMember" abstract="false" name="SheepMountainMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="efr_ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantedNonvestedNumberOfShares" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantedNonvestedNumberOfShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="efr_PurchaseAgreementPurchasePrice" abstract="false" name="PurchaseAgreementPurchasePrice" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="efr_ItemsThatMayBeReclassifedInTheFutureToProfitAndLossAbstract" abstract="true" name="ItemsThatMayBeReclassifedInTheFutureToProfitAndLossAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="efr_RevenuesAlternateFeedMaterialsProcessingandOther" abstract="false" name="RevenuesAlternateFeedMaterialsProcessingandOther" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="efr_UnderutilizedCapacityProductionCostsRareEarthConcentrates" abstract="false" name="UnderutilizedCapacityProductionCostsRareEarthConcentrates" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="efr_InflationRate" abstract="false" name="InflationRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
</xs:schema>
