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3D3DBig hunk of galena.
This is a nice well-formed cube of galena (lead sulfide) from the Sweetwater mine in Missouri.
Source: eBay seller arrowheadmine
Contributor: Theodore Gray
Acquired: 11 March, 2009
Text Updated: 12 March, 2009
Price: $66
Size: 3"
Composition: PbS
Lead