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6. Properties, Plants and Equipment (Tables) | 12 Months Ended
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Dec. 31, 2018
Properties Plants And Equipment Tables Abstract |
Properties, Plants and Equipment |
|  | Antimony Segment |  |  | Zeolite Segment |  |  | Precious Metals |  |  |  |
2018 |  | USAC |  |  | USAMSA |  |  | BRZ |  |  | Segment |  |  | TOTAL |
Plant & Equipment |  | $ | 743,767 |  |  | $ | 8,466,461 |  |  | $ | 3,690,249 |  |  | $ | 792,628 |  |  | $ | 13,693,105 |
Buildings |  |  | 247,210 |  |  |  | 900,992 |  |  |  | 391,305 |  |  |  | - |  |  |  | 1,539,507 |
Mineral Rights and Interests |  |  | - |  |  |  | 3,793,502 |  |  |  | 3,664 |  |  |  | - |  |  |  | 3,797,166 |
Land & Other |  |  | 3,274,572 |  |  |  | 2,529,294 |  |  |  | 15,310 |  |  |  | - |  |  |  | 5,819,176 |
|  |  | 4,265,549 |  |  |  | 15,690,249 |  |  |  | 4,100,528 |  |  |  | 792,628 |  |  |  | 24,848,954 |
Accumulated Depreciation |  |  | (2,630,234 | ) |  |  | (4,029,480 | ) |  |  | (2,785,159 | ) |  |  | (176,909 | ) |  |  | (9,621,782 | )
|  | $ | 1,635,315 |  |  | $ | 11,660,769 |  |  | $ | 1,315,369 |  |  | $ | 615,719 |  |  | $ | 15,227,172 |
|  | Antimony Segment |  |  | Zeolite Segment |  |  | Precious Metals |  |  |  |
2017 |  | USAC |  |  | USAMSA |  |  | BRZ |  |  | Segment |  |  | TOTAL |
Plant & Equipment |  | $ | 743,767 |  |  | $ | 7,655,777 |  |  | $ | 3,577,055 |  |  | $ | 751,640 |  |  | $ | 12,728,239 |
Buildings |  |  | 247,210 |  |  |  | 900,992 |  |  |  | 349,946 |  |  |  | - |  |  |  | 1,498,148 |
Mineral Rights and Interests |  |  |  |  |  |  | 3,793,502 |  |  |  | 3,664 |  |  |  | - |  |  |  | 3,797,166 |
Land & Other |  |  | 3,274,572 |  |  |  | 2,529,294 |  |  |  | 15,310 |  |  |  | - |  |  |  | 5,819,176 |
|  |  | 4,265,549 |  |  |  | 14,879,565 |  |  |  | 3,945,975 |  |  |  | 751,640 |  |  |  | 23,842,729 |
Accumulated Depreciation |  |  | (2,577,552 | ) |  |  | (3,427,058 | ) |  |  | (2,596,356 | ) |  |  | (108,866 | ) |  |  | (8,709,832 | )
|  | $ | 1,687,997 |  |  | $ | 11,452,507 |  |  | $ | 1,349,619 |  |  | $ | 642,774 |  |  | $ | 15,132,897 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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