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Plancheite

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PDM772457

Plancheite

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Description
Locality: 
Kamoya, Kambove, Haut-Katanga, DR Congo
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 3.5 × 1.8 cm
Description

Nice aggregate of light blue velvety plancheite of acicular crystals and a botryoidal surface lining a geode, with the surface partially covered by black heterogenite. Aesthetic piece from the Kamoya mine, locality that is rarely represented in collections.

Old specimen, perfectly located because it was collected before 1968 by Martíal Borzee, a Belgian engineer to Congo.

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)

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