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Hausmannite & Calcite

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RAF736665

Hausmannite & Calcite

Fluorescent

Description Tabs

Description
Locality: 
NChwaning II Mine, Kuruman, Kalahari, Northern Cape Province, South Africa
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
13 × 8.8 × 3.5 cm
Largest Crystal: 
0.40cm
Weight: 
475.00gr
Description

A fabulous large Hausmannite & Calcite specimen from N'Chwaning II Mine, Northern Cape. Beautiful cube Calcite crystals mixed with beautiful little Hausmannite crystals. Some of the Calcite crystals are frosted.

Mineral Data
What's on the rock

Hausmannite

Formula: 
Mn2+Mn3+2O4
Strunz: 
4.BB.10
Hardness: 
5.5
Type Locality: 
Oehrenstock (Öhrenstock), Langewiesen, Ilmenau District, Thuringian Forest, Thuringia, Germany

Calcite

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