Chalcophyllite - 773

St. Day, Gwennap, Cornwall


Numerous veinlets of chalcophyllite in a massive chalcopyrite/quartz matrix, forming sharp hexagonal platy crystals in the cavities dotted about the specimen. Cornish classic.

Formula  Cu18Al2(SO4)3(AsO4)3(OH) 27.33H2O

Status: Sold

Height: 62x45x35mm

Size: Small Cabinet (S)

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