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Cotunnite & Dioptase

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JYJ691934

Cotunnite & Dioptase

New & very limited find!

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.1 × 0.9 × 0.7 cm
Description

A new find on an old sample: cotunnite coating a duftite mineral and Zn rich dolomite. This is one of the last samples from this limited new find. The typical assemblage confirms the identity and allows to exclude mislabeling of the locality. 

 

Mineral Data
What's on the rock

Cotunnite

Formula: 
PbCl2
Strunz: 
3.DC.85
Hardness: 
1.5 - 2.0
Type Locality: 
Mt Vesuvius, Somma-Vesuvius Complex, Naples Province, Campania, Italy

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...