Chalcopyrite with Sphalerite, Quartz
specimen number:
3231045
location:
Little Todd vein, Bandora mine, San Juan Co., Colorado, USA
description:
Sharp bright brassy twinned crystals of chalcopyrite to 2.0 cm across on a crystallized quartz matrix with good black sphalerite crystals. Classic material for this locality. In very fine condition.
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