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Olmiite & Bultfonteinite

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CFL710483

Olmiite & Bultfonteinite

Description Tabs

Description
Locality: 
Wessels Mine, Hotazel, Kalahari, Northern Cape Province, South Africa
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 5 × 2 cm
Weight: 
80.00gr
Description

Very nice and rich classic "floater" specimen of dark pink to brown olmiite crystals on matrix, associated with bulfonteinite.  Crystals cover both sides of the specimen.

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...

Bultfonteinite

Formula: 
Ca2(HSiO4)F·H2O
Strunz: 
9.AG.80
Hardness: 
4.5
Streak: 
white
Type Locality: 
Bultfontein, Lejweleputswa District, Free State Province, South Africa

Seller Information

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