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Plancheite On Quartz

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PDM769489

Plancheite On Quartz

Classic Locality

Description Tabs

Description
Locality: 
Shangulowé Mine, Kambove, Lualaba, DR Congo
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 5.3 × 1.7 cm
Description

Crust of transparent to translucent quartz crystals richly covered and included by acicular, light blue plancheite crystals. Aesthetic piece from the Shangulowé mine, locality that is rarely represented in collections, particularly for this paragenesis.

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)

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

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