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Baryte On Hausmannite On Calcite & Hematite

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SMS1077092

Description Tabs

Description
Locality: 
NChwaning II Mine, Kuruman, Kalahari, Northern Cape Province, South Africa
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
3.3 × 5.5 × 4.4 cm
Largest Crystal: 
1.50cm
Weight: 
70.12gr
Description

The specimen has a matrix held together by andradite. One side is heavily deposited of drifts of snow white baryte. And then some large crystals of hematite and calcite penetrate into the matrix. Essentially though the specimen features large crystals of hematite and calcite with small crystals of white baryte and tiny hausmannite. The largest hematite to 1.5cm and is contacted on t he back where it was attached to matrix.

Mineral Data
What's on the rock

Baryte

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

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

Hematite

Formula: 
Fe2O3
Strunz: 
4.CB.05
Crystal System: 
Trigonal
Hardness: 
5.0 - 6.0

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Start 18 Oct 18:00
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Postage Area Price
Europe up to 500 grams
$12
Europe up to 1 kilogram
$16
United States up to 500 grams
$14
United States up to 1 kilogram
$18
Rest of world up to 500 grams
$14
Rest of world up to 1 kilogram
$18

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