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Cornetite

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UVM632905

Cornetite

Classic Locality

Description Tabs

Description
Locality: 
Yerington, Lyon County, Nevada, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 1.6 × 1.8 cm
Description

Rather well formed, large, blocky crystals of cornetite on matrix.   Old material from the Yerington district which is all but bereft of specimens on the dumps today.

Mineral Data
What's on the rock

Cornetite

Formula: 
Cu3(PO4)(OH)3
Strunz: 
8.BE.15
Hardness: 
4.5
Type Locality: 
L'Etoile du Congo Mine (Star of the Congo Mine; Kalukuluku Mine), Lubumbashi (Elizabethville), Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre)...

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