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Chrysocolla Plancheite & Malachite

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RAF174726

Chrysocolla Plancheite & Malachite

Description Tabs

Description
Locality: 
KOV Open Pit, Kamto, Kolwezi, Lualaba, DR Congo
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
9 × 7 × 4.5 cm
Description

A really great specimen of chrysocola surrounding entire piece. Plancheite and malachite nodules in vug. An attractive Congo specimen!
Weight: 210 gr

Mineral Data
What's on the rock

Chrysocolla

Formula: 
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (x < 1)
Strunz: 
9.ED.20
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.5

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