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Thaumasite & Xonotlite

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ESM813222

Thaumasite & Xonotlite

Description Tabs

Description
Locality: 
NChwaning Mines, Kuruman, Northern Cape Province, South Africa
Class: 
Combination
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1 × 1 cm
Description

Sharp transparent colorless thaumasite crystals with hair-like xonolite

Mineral Data
What's on the rock

Thaumasite

Formula: 
Ca3(SO4)[Si(OH)6](CO3)·12H2O
Strunz: 
7.DG.15
Hardness: 
3.5
Streak: 
White
Type Locality: 
Bjelke Mines, Åreskutan, Åre, Jämtland, Sweden

Xonotlite

Formula: 
Ca6(Si6O17)(OH)2
Strunz: 
9.DG.35
Crystal System: 
Monoclinic
Hardness: 
6.5
Type Locality: 
Tetela de Xonotla, Puebla, Mexico