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Brochantite & Gypsum

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UVM854194

Brochantite & Gypsum

Jim Thomas, New Cornelia Mining Engineer
Classic Locality

Description Tabs

Description
Locality: 
New Cornelia Mine, Ajo, Pima County, Arizona, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 1.8 × 1.6 cm
Description

Green brochantite associated with gypsum.   A rather average specimen, but very rarely seen from the locality.   From the collection of Jim Thomas, a mining engineer in Ajo.

Mineral Data
What's on the rock

Brochantite

Formula: 
Cu4(SO4)(OH)6
Strunz: 
7.BB.25
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0
Type Locality: 
Mednorudyanskoye Cu Deposit, Nizhnii Tagil, Sverdlovskaya Oblast', Middle Urals, Urals Region, Russia...

Gypsum

Formula: 
CaSO4·2H2O
Strunz: 
7.CD.40
Hardness: 
2.0
Streak: 
White.

Seller Information

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