Dragon Minerals - Update December 16, 2018

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28006: Cuprite, Silver, and Miersite
Poteryaevskoe Mine, Rubtsovskoe Cu-Zn-Pb deposit, Rudnyi Altai, Altaiskii Krai, Russia
Miniature - 4.0 x 3.6 x 3.2 cm (1.6 x 1.4 x 1.3 inches)
74 grams (0.16 pounds)
Specimen status: Sold

From the famous find of a few years ago we have a cluster of lustrous and sharp cuprite crystals, the largest of which is 1.5 cm in size. Scattered about are patches of crystalline silver (fifth photo) as well as waxy grayish miersite, an rare silver copper halide with somewhat variable composition, (Ag,Cu)I. Judging from the color this miersite has more silver than copper. Some incomplete cuprites are present and the price reflects this. Displays nicely at multiple angles. Better, I think, than the photos suggest.

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