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Olmiite

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WND777340

Olmiite

Rare Mineral, Type Locality
Classic Locality

Description Tabs

Description
Locality: 
NChwaning II Mine, Kuruman, Kalahari, Northern Cape Province, South Africa
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.9 × 4.6 × 2.9 cm
Largest Crystal: 
1.90cm
Description

Several clusters of meatcoloured, transparent to translucent are Olmiite perched on typically matrix. The main crystals are absolutely intact, just a few imperfection in the periphery. A good, colourful and contrastful specimen is very good shape. Back side is sawn.

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...
Wendel Minerals

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