Chalcocite with Prehnite
specimen number:
2062096
location:
Clark Mine, Keweenaw Co., Michigan, USA
description:
Metallic crystals of chalcocite to 0.1 cm in size scattered richly across the top of a botryoidal green prehnite crystal matrix. In good condition. A neat thumbnail specimen for this mining district.
Size: 3.0 x 2.3 x 2.0 cm (thumbnail)
Collection: Ray DeMark
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