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Calcite Psm Kutnohorite

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RAF617646

Calcite Psm Kutnohorite

Fluorescent

Description Tabs

Description
Locality: 
NChwaning II Mine, Kuruman, Kalahari, Northern Cape Province, South Africa
Class: 
Crystal Group/Cluster
Size Range: 
Museum (18cm plus)
Size: 
77 × 72 × 40 cm
Largest Crystal: 
2.50cm
Weight: 
184.00gr
Description

This soft-peach coloured calcite with tails psuedomorph after Kutnohorite glistens at every angle. From N'chwaning II.

Mineral Data
What's on the rock

Calcite

Polymorph of: 
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