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Anorthite & Fassaite

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SLN192569

Anorthite & Fassaite

Description Tabs

Description
Locality: 
Toal de la Foia, Monzoni Mountains, Trento Province, Trentino-Alto Adige, Italy
Size Range: 
Small cabinet (7-10 cm)
Size: 
4.2 × 8.8 × 4.6 cm
Description

Nice specimen with a lot of peach well-formed anorthite crystals associated with green prismatic fassaite crystals on a massive fassaite matrix

Mineral Data
What's on the rock

Anorthite

Formula: 
CaAl2Si2O8
Strunz: 
9.FA.35
Crystal System: 
Triclinic
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy

Fassaite

Variety Of: 

Augite

Formula: 
(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Strunz: 
9.DA.15
Hardness: 
5.5 - 6.0
Hardness: 
0.0

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