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Scawtite & Thaumasite

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CLB585985

Scawtite & Thaumasite

Rare Mineral

Description Tabs

Description
Locality: 
Zeilberg Quarry, Maroldsweisach, Bavaria, Germany
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.8 × 2.5 cm
Description

Nice sample of white, barely visible scawtite and tiny, colorless thaumasite crystals.

Not even two dozen localities are knoewn for scawtite.
 

Mineral Data
What's on the rock

Scawtite

Formula: 
Ca7(Si3O9)2CO3·2H2O
Strunz: 
9.CK.15
Hardness: 
4.0 - 5.0
Type Locality: 
Scawt Hill, Larne, Co. Antrim, Northern Ireland, UK

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

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