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Bultfonteinite & Oyelite

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SKY1025255

Bultfonteinite & Oyelite

Rare Mineral

Description Tabs

Description
Locality: 
NChwaning Mines, Kuruman, Northern Cape Province, South Africa
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1.7 × 0.7 cm
Description

Pink globular aggregtaes of bultfonteinite associated to oyelite from Southafrica.

Ex Vandenbroucke Museum collection from Waregem, Belgium.

Mineral Data
What's on the rock

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

Oyelite

Formula: 
Ca10Si8B2O29·12.5H2O
Strunz: 
9.HA.80
Hardness: 
5.0
Type Locality: 
Fuka mine, Fuka, Bicchu-cho (Bitchu-cho), Takahashi City, Okayama Prefecture, Chugoku Region, Honshu Island, Japan

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