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Afwillite & Thaumasite

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CLB157758

Afwillite & Thaumasite

Classic Locality

Description Tabs

Description
Locality: 
Zeilberg Quarry, Maroldsweisach, Bavaria, Germany
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.8 × 3.4 × 3 cm
Description

Very good specimen with waterclear, colorless afwillite crystals and white, lustrous, striated thaumasite crystals in a vug. Rare material.

Mineral Data
What's on the rock

Afwillite

Formula: 
Ca3(HSiO4)2·2H2O
Strunz: 
9.AG.75
Crystal System: 
Monoclinic:
Hardness: 
3.0 - 4.0
Streak: 
White
Type Locality: 
Dutoitspan Mine, Kimberley, Francis Baard District, Northern Cape Province, South Africa

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

Seller Information

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