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Hausmannite With Spessartine & Baryte

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QRI850278

Hausmannite With Spessartine & Baryte

Former collection Christian Mavris
Classic Locality

Description Tabs

Description
Locality: 
NChwaning II Mine, Kuruman, Kalahari, Northern Cape Province, South Africa
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
10.6 × 5.2 × 3.7 cm
Largest Crystal: 
2.50cm
Weight: 
277.00gr
Description

A significant cabinet featuring four sizeable, stepped hausmannite crystals beautifully perched on top of orange spessartine matrix. Associated, a couple of white baryte crystals, although not complete.

Quite contrastful and in pretty good conditions, with just a few peripheral imperfections.

From three relevant UK collections (ISIS Minerals, Potts and Baker). Definitely unusual to find nowadays!
 

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

Spessartine

Formula: 
Mn2+3Al2(SiO4)3
Strunz: 
9.AD.25
Crystal System: 
Isometric
Hardness: 
6.5 - 7.5
Streak: 
White
Type Locality: 
Sommer quarry, Wendelberg, Haibach, Aschaffenburg, Spessart, Franconia, Bavaria, Germany

Baryte

Formula: 
BaSO4
Strunz: 
7.AD.35
Hardness: 
3.0 - 3.5
Streak: 
White

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