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Olmiite

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Watches:
RAF727871

Olmiite

Fluorescent

Description Tabs

Description
Locality: 
NChwaning II Mine, Kuruman, Kalahari, Northern Cape Province, South Africa
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
10.6 × 6.6 × 2.7 cm
Largest Crystal: 
1.90cm
Weight: 
256.00gr
Description

Beautiful Olmiite crystals on matrix from N'Chwaning II Mine. A nice large specimen.  The marks on the crystals are not breakage, but where it touched the top of the pocket.

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...