6. Properties, Plants and Equipment (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Properties, plants and equipment, net	$ 10,576,406	$ 6,047,004
Zeolite [Member]
Properties, plants and equipment, gross	3,215,657
Accumulated depreciation	(1,498,732)
Antimony [Member]
Properties, plants and equipment, gross	11,710,203	7,019,534
Accumulated depreciation	(2,850,722)	(2,597,878)
Zeolite [Member]
Properties, plants and equipment, gross		2,914,661
Accumulated depreciation		(1,289,313)
Equipment [Member] \| Antimony [Member]
Properties, plants and equipment, gross	3,762,238	1,936,038
Equipment [Member] \| Zeolite [Member]
Properties, plants and equipment, gross	2,397,119	2,125,748
Building [Member] \| Antimony [Member]
Properties, plants and equipment, gross	1,219,025	1,054,311
Building [Member] \| Zeolite [Member]
Properties, plants and equipment, gross	818,538	788,913
Mineral Rights [Member] \| Antimony [Member]
Properties, plants and equipment, gross	786,087	635,011
Land and Other [Member] \| Antimony [Member]
Properties, plants and equipment, gross	$ 5,942,853	$ 3,394,174

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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