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Thaumasite

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QRI669018

Thaumasite

Former stock Bruno Cerato
Rare Mineral

Description Tabs

Description
Locality: 
Monte Somma, Vesuvius, Campania, Italy
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.4 × 3.5 × 2.2 cm
Largest Crystal: 
0.10cm
Description

Rare thaumasite sprays on metasomatic matrix. Sprays are candid white and are found in a nicely vug with what appears to be spatic calcite. The main aggregate resembles an asterisk and is developed all around. Elegant and quite esthetic when observed at 10x magnification. Positioned on an acrylic plynth before being put in a plastic box.
A very rare mineral at the Somma-Vesuvius complex area, it can now be retrieved only in collections. Former collection and stock Bruno Cerato (Italy).

Boxed with Label
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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