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Olmiite

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WND863910

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: 
Thumbnail (1-3cm)
Size: 
2.3 × 2.1 × 1.6 cm
Description

A fine cluster of well developed, transparent orange-brown Olmiite from the type locality, the N´Chwaning II Mine near Kuruman in South Africa. The Olmiite is sharp edged, highly lustrous and superbly terminated. A super thumbnail piece.

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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