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Dioptase & Plancheite On Chrysocolla Psm Calcite

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SMS1064260

Dioptase & Plancheite On Chrysocolla Psm Calcite

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Description Tabs

Description
Locality: 
Tenke-Fungurume Area, Kolwezi, Lualaba, DR Congo
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 6.8 × 4.3 cm
Weight: 
165.32gr
Description

The specimen has tiny clear quartz crystals with tiny light coloured gemmy dioptase deposited on a botryoidal bubbles crust of plancheite over chrysocolla. The chrysocolla has a blocky high relief surface amidst quite deep recesses. The relief of the stocky structures is in fact crystalline and rhombic and one is looking at plancheite on chrysocolla psm after calcite. Into the core of the material there is also malachite.

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...

Plancheite

Formula: 
Cu8(Si8O22)(OH)4·H2O
Strunz: 
9.DB.35
Crystal System: 
Orthorhombic
Hardness: 
6.0
Type Locality: 
Sanda carriere (Sanda quarry; Sanda Mine), Mindouli, Mindouli 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

Calcite

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

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