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Native α-Brass In Anorthite

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SHS64208

Native α-Brass In Anorthite

Description Tabs

Description
Locality: 
Hachijo Island, Hachijo, Hachijō Subprefecture, Tokyo Metropolis, Honshu Island, Japan
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 1.7 × 1.5 cm
Description

Small brass in nearly pure anorthite

Mineral Data
What's on the rock

α-Brass

Formula: 
Cu3Zn
Strunz: 
1.AB.10a
Crystal System: 
Isometric
Colour: 
Yellow

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