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Thaumasite

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CHP846315

Thaumasite

Classic Locality

Description Tabs

Description
Locality: 
San Vito Quarry, Ercolano, Monte Somma, Somma-Vesuvius, Naples, Campania, Italy
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3 × 2.5 cm
Description

specimen with some beautiful aggregates of white needles of thaumasite on matrix.

c. 1982
 

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

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