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Obradovicite-KCu

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GFM786866

Obradovicite-KCu

Description Tabs

Description
Locality: 
Lemhi County, Idaho, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
0.6 × 1.3 × 1.6 cm
Description

the extremely rare Copper-Potassium-Arsenat-Molybdate forms light green micro-crystalline crystal aggregates, in addition to light brown Metavoltine on small fracture zones in a Quartz matrix. It is only the third Obradovicit-KCu find worldwide

Mineral Data
What's on the rock

Obradovicite-KCu

Formula: 
[K2(H2O)17Cu(H2O)6][Mo8As2Fe3+3O34(OH)3]
Strunz: 
7/C.33-40
Crystal System: 
Orthorhombic
Hardness: 
2½ -
Colour: 
Pea-green (RHS 149A)
Type Locality: 
Chuquicamata Mine, Calama, Antofagasta Region, Chile