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Plancheite Malachite & Calcite

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CLB565844

Plancheite Malachite & Calcite

Description Tabs

Description
Locality: 
Tantara Mine, Shinkolobwe, Kambove, Haut-Katanga, DR Congo
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.9 × 6.7 × 4.6 cm
Description

Radiating, pale blue plancheite crystal aggregates with dark green malachite and some calcite crystals.

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)

Malachite

Formula: 
Cu2(CO3)(OH)2
Strunz: 
5.BA.10
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0

Calcite

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

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