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Molybdofornacite & Dioptase

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ESM650932

Molybdofornacite & Dioptase

Rare Mineral

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Combination
Size Range: 
Thumbnail (1-3cm)
Size: 
2.3 × 2.5 × 2.2 cm
Description

A matrix with dioptase crystals is richly covered with neon yellow molybdofornacite needles

Mineral Data
What's on the rock

Molybdofornacite

Formula: 
Pb2Cu(MoO4,CrO4)(AsO4,PO4)(OH)
Strunz: 
7.FC.10
Crystal System: 
Monoclinic
Hardness: 
2.0 - 3.0
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia

Dioptase

Formula: 
CuSiO3·H2O
Strunz: 
9.CJ.30
Crystal System: 
Trigonal
Hardness: 
5.0
Streak: 
Green
Type Locality: 
Altyn-Tyube dioptase deposit (Altyn-Tube), Altyn-Tyube area, Kirghiz Steppes (Asiatic Steppes), Karagandy Province (Qaragandy Oblysy; Karaganda Oblast'), Kazakhstan...