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Dolomite & Calcite

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PDM757657

Dolomite & Calcite

Description Tabs

Description
Locality: 
Kambove, Haut-Katanga, DR Congo
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.7 × 5.2 × 4.6 cm
Largest Crystal: 
1.40cm
Description

A very interesting specimen of lenticular dolomite partially covered by ochre coloured calcite aggregates. Ex. Robert Verdoot, who worked in the laboratories of UMHK in Lubumbashi and returned to Belgium after the riots and the declaration of independence of Congo in 1960.

Mineral Data
What's on the rock

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White

Calcite

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

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