Calaverite
1.78 ct
Fancy Cut
9.70 x 9.10 x 5.10 mm
Colorado,
USA
max9455

Calaverite

Calaverite a Rare Gold Telluride  mixed into chalcedony/granite matrix.

The formula is (AuTe2). Small quantity of silver may also be found.

It comes from Cripple Creek Mining District, Teller County, Colorado, USA