Goethite after Pyrite
specimen number:
4551335
location:
Duquesne, Santa Cruz Co., Arizona, USA
description:
Sharp cubic crystals of what were once pyrite measuring to 1.7 cm in size now replaced by goethite and set on a crystalline quartz matrix. This is in very good condition all around. The previous label describes the replacement as hisingerite, I think is goethite.
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Related by Mineral (Goethite):
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