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Calcite On Hausmannite

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SMS1089069

Description Tabs

Description
Locality: 
Wessels Mine, Hotazel, Kalahari, Northern Cape Province, South Africa
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.2 × 3.8 × 2.1 cm
Largest Crystal: 
0.60cm
Weight: 
41.48gr
Description

The specimen is made up of a deposit of fine grained calcite on a bed of hausmannite that has formed into a shallow basin that has preserved the hausmannite crystals. The hausmanite have a lovely metallic lustre and smooth finish with intergrown crystal making up the mass of the specimen. The largest crystal of hausmannite measures 0.6cm.

Mineral Data
What's on the rock

Calcite

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

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Start 14 Dec 18:00
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Shipping Information

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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Bid History

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