Rich blocky crystals of deep burgundy-red Proustite are developed within and on top of a matrix of mixed white and colourless Calcite and Fluorite. From the richly mineralised district of J'chymov in the Kru'n' Hory Mountains (Erzgebirge) of the Czech Republic. Proustite crystals to 7 mm form linked chains across the surface and have a metallic high lustre. A rich Proustite from J'chymov.
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