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Chalcopyrite & Quartz

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RFJ960814

Chalcopyrite & Quartz

Classic Locality

Description Tabs

Description
Locality: 
Ashio Mine, Ashio-machi, Nikko City, Tochigi Prefecture, Honshu Island, Japan
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.3 × 4.6 × 1.6 cm
Description

The Ashio Mine was one of the most famous and largest Copper mines in Japan, mining started in the 16 century, Minerals from this mine are very rarly seen anymore on the market.

Mineral Data
What's on the rock

Chalcopyrite

Formula: 
CuFeS2
Strunz: 
2.CB.10a
Crystal System: 
Tetragonal
Hardness: 
3.5 - 4.0

Quartz

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

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