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Plancheite & Dioptase

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SCH60816

Plancheite & Dioptase

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Description
Locality: 
Mashamba West Mine, Kolwezi, Lualaba, DR Congo
Size Range: 
Thumbnail (1-3cm)
Size: 
2.1 × 1 × 1.6 cm
Description

An interesting specimen of micro blue plancheite needles filling cavities of the matrix. There is a bit of dioptase surrounded by plancheite in one side.

 

Mineral Data
What's on the rock

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)

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...
schani

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