Dims: 0.94x0.67x0.55" (2.4x1.7x1.4cm)
Wt: 0.39oz. (10.9g)
Proana Mine, Fresnillo, Zacatecas, Mexico
This thumbnail specimen is mostly a single large crystal of pyrargyrite, judging by the deep and perfectly parallel striations along the sides of the crystal. There are many terminations which, again, are parallel. There is a second, smaller crystal whose striations are at a slightly different angle. The specimen appears a metallic black, but close examination reveals the deep red color of the species, especially as bright red reflections from internal fractures. Under a loupe and a bright light, the red appears everywhere, as the translucency of the crystals is revealed. There is a small amount of milky quartz crystals, upon which this undamaged pyrargyrite was perched.