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Andradite & Quartz

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RFJ1037107

Andradite & Quartz

Classic Locality

Description Tabs

Description
Locality: 
Shirakuradani Mine, Kitozumi, Tenkawa, Nara Prefecture, Honshu Island, Japan
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4 × 5.3 × 2.4 cm
Description

Highly lustrous and gemmy Andradite crystals associated with Quartz crystals, rather rare combination in Japan.

Mineral Data
What's on the rock

Andradite

Formula: 
Ca3Fe3+2(SiO4)3
Strunz: 
9.AD.25
Crystal System: 
Isometric
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Drammen, Buskerud, Norway

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

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