Gold Sylvanite
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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