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Bementite & Hausmannite

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BCK221320

Bementite & Hausmannite

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Description
Locality: 
NChwaning II Mine, Kuruman, Kalahari, Northern Cape Province, South Africa
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 1.7 × 1.5 cm
Description

You are bidding on a small specimen with several patches of tiny pink bementite crystals on quite large and nice hausmannite crystals.

Mineral Data
What's on the rock

Bementite

Formula: 
Mn7Si6O15(OH)8
Strunz: 
9.EE.05
Crystal System: 
Monoclinic
Hardness: 
6.0
Streak: 
White
Type Locality: 
Trotter Mine (Lehigh Mine), Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA

Hausmannite

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

Current price

$

Starting price

$10
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Start 23 Aug 18:00
End
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Shipping Information

Postage Area Price
in USA
$9

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