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Olmiite On Manganese

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RAF102031

Olmiite On Manganese

Fluorescent

Description Tabs

Description
Locality: 
NChwaning II Mine, Kuruman, Kalahari, Northern Cape Province, South Africa
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 4 × 1.6 cm
Largest Crystal: 
2.00cm
Description

A very fine specimen of olmiite crystals on Manganese that came out from N'Chwaning II Mine three years ago. No more specimens are now coming out...

Weight: 48gr.

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...