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5. Inventories (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Inventories	$ 887,648	$ 755,261
Antimony Oxide - Finished
Inventories	252,704	255,782
Antimony Metal [Member]
Inventories	158,532	8,127
Antimony Concentrates
Inventories	0	2,214
Antimony Ore [Member]
Inventories	269,627	257,067
Antimony [Member]
Inventories	680,863	523,190
Zeolite [Member]
Inventories	$ 206,785	$ 232,071

X

- Definition

Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

+ 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 210.5-02.6(a))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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