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Afwillite With Thaumasite

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LGM537513

Afwillite With Thaumasite

Ex Ring collection, Munich, Germany
Rare Mineral

Description Tabs

Description
Locality: 
Zeilberg Quarry, Maroldsweisach, Bavaria, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.3 × 2.3 × 1.2 cm
Largest Crystal: 
0.30cm
Weight: 
5.00gr
Description

Small, white balls of acicular thaumasite crystals are scattered on elongated, clear afwillite crystals. The afwillite crystals are sharp, milky to transparent clear and reach a size of up to 3 mm.

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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