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Hausmannite & Andradite

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PDM759071

Hausmannite & Andradite

Floater

Description Tabs

Description
Locality: 
NChwaning II Mine, Kuruman, Kalahari, Northern Cape Province, South Africa
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.1 × 3 × 2.7 cm
Description

Floater group of lustrous black stepped pseudoctahedral crystals of hausmannite with granny surfaces due to parallel growths, associated to a mass of lustrous pale brown-red andradite crystals.

Bought in 1990, it is an Ex Johann Muizebelt (NL) specimen.

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

Andradite

Formula: 
Ca3Fe3+2(SiO4)3
Strunz: 
9.AD.25
Crystal System: 
Isometric
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Drammen, Buskerud, Norway

Seller Information

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