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Calcite On Kutnohorite

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SMS1066378

Description Tabs

Description
Locality: 
Wessels Mine, Hotazel, Kalahari, Northern Cape Province, South Africa
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.7 × 5.9 × 3.7 cm
Weight: 
73.82gr
Description

The specimen is a porous mass of long pink very narrow crystals of kutnohorite with some touches of smaller and shorter pointed crystals of calcite. The long slender crystals of kutnohorite cluster in lengths to a degree, but numerous crystals remain single as well. The calcite is uv reactive.

Mineral Data
What's on the rock

Calcite

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

Kutnohorite

Formula: 
Ca(Mn,Mg,Fe)(CO3)2
Strunz: 
5.AB.10
Hardness: 
3.5 - 4.0
Type Locality: 
Poličany, Kutná Hora (Kuttenberg), Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic

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