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Gageite & Mangan-diaspore

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UVM587482

Gageite & Mangan-diaspore

Rare Mineral

Description Tabs

Description
Locality: 
Wessels Mine, Hotazel, Kalahari, Northern Cape Province, South Africa
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.9 × 1.6 × 1 cm
Description

A rich thumbnail size specimen of Gageite and Mangandiaspore from the Wessels Mine.    This specimen features white Gageite on a matrix of pink crystalline Mangandiaspore.   An excellent combination of two rarely seen species.

Mineral Data
What's on the rock

Gageite

Formula: 
Mn21(Si4O12)2O3(OH)20
Strunz: 
9.DH.35
Crystal System: 
Triclinic Monoclinic
Hardness: 
3.0
Type Locality: 
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA

Mangan-diaspore

Variety Of: 

Diaspore

Formula: 
AlO(OH)
Strunz: 
4.FD.10
Hardness: 
6.5 - 7.0
Hardness: 
0.0
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