| | | Sylvanite. The tag that came with sample reads as follows:
 Sylvanite, Bessie G Mine - La Plata County Near Durango, Colorado.I traded this sample for a few of my strange copper nodules. A mineral composed of gold and/or silver, plus tellurium?  What could be more exotic!
 Source: Calvin Webb
 Contributor: Calvin Webb
 Acquired: 1 September, 2003
 Price: Donated
 Size: 1"
 Composition: (Au,Ag)2Te4
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