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Olmiite With Bultfonteinite

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PCZ658230

Olmiite With Bultfonteinite

Type Locality

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: 
10.5 × 6.5 × 2.5 cm
Description

An exceptional specimen comprising of numerous sharp olmiite crystals from the type locality. The association with delicate tufts of contrasting white bultfonteinite makes for a very pleasing combination. Lovely display. 

(L)

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
Peter Crozier Minerals