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Olmiite & Oyelite

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MGR149337

Olmiite & Oyelite

Description Tabs

Description
Locality: 
Wessels Mine, Hotazel, Kalahari, Northern Cape Province, South Africa
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.7 × 3.3 × 1.9 cm
Description

Excellent and highly aesthetic specimen from this famouse mine. The olmiite is highly lustrouse, completely freestanding (also backside), termination is razor-sharp and of perfect aesthetics. Clean of any damage (even with a loup).

Mineral Data
What's on the rock

Olmiite

Formula: 
CaMn2+[SiO3(OH)](OH)
Strunz: 
9.AF.90
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape Province, South Africa...

Oyelite

Formula: 
Ca10Si8B2O29·12.5H2O
Strunz: 
9.HA.80
Hardness: 
5.0
Type Locality: 
Fuka mine, Fuka, Bicchu-cho (Bitchu-cho), Takahashi City, Okayama Prefecture, Chugoku Region, Honshu Island, Japan