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Fornacite & Chrysocolla

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ASC691624

Fornacite & Chrysocolla

Rare Mineral

Description Tabs

Description
Locality: 
Eagle Eye Mine, New Water District, La Paz County, Arizona, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2 × 2 cm
Description

dark green crystals of Fornacite between and on needles of unknown mineral pseudomorphed by Chrysocolla. Very colourful and esthetic under the scope.

Mineral Data
What's on the rock

Fornacite

Formula: 
Pb2Cu(CrO4)(AsO4)(OH)
Strunz: 
7.FC.10
Hardness: 
2.0 - 3.0
Type Locality: 
Renéville Mine (Djoué Mines), Renéville, Kindanba District, Pool Department, Republic of Congo (Brazzaville)

Chrysocolla

Formula: 
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (x < 1)
Strunz: 
9.ED.20
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.5

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