Emplectite with Barite and Cosalite(?)
Krusne Hory Mountains (Erzgebirge), Karlovy Vary region, Bohemia, Czech Republic
Small Cabinet, 6.0 x 4.2 x 3.8 cm
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This is a significant old-timer from a bygone era of mining in the Erzgebirge. Divergent fascicles of tin-white to brassy emplectite needles and dull gray, curved, intergrown, acicular to almost fibrous aggregates of what may be cosalite are distributed richly around this barite-galena-chalcopyrite matrix. Emplectite needles are sometimes included within platy barite crystals. Emplectite is a very uncommon copper bismuth sulfide. Rare and excellent historic material that looks fabulous under the microscope. William C. Metropolis Fine Minerals label.