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Dioptase Psm Calcite

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PDM855773

Dioptase Psm Calcite

Description Tabs

Description
Locality: 
Tantara Mine, Shinkolobwe, Kambove, Haut-Katanga, DR Congo
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.3 × 2.8 × 1.4 cm
Largest Crystal: 
1.70cm
Description

A classic pseudomorph piece that features casts of green dioptase after scalenohedral calcite. The casts forms cavities partially coated by light blue chrysocolla and minor green malachite.

Old time Tantara specimen from the collection of Achiel Moors, a Belgian colonist in the D.R.Congo from 1957 to 1972.

Mineral Data
What's on the rock

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...

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

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