Calcite
Elmwood Mine, Carthage, Smith County, Tennessee, USA
17.3 x 13.1 x 12.3 cm. A large, 15 cm across, light cognac colored, doubly-terminated and twinned calcite crystal, is the largest of a cluster emplaced on cherty, gray limestone. There are also a few lustrous, gray, galena crystals, to 1.0 cm across. Considering the exposure of this 3-dimensional piece in the pocket, it is amazing it has survived, ...
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