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Tokyoite

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JYJ829141

Tokyoite

Description Tabs

Description
Locality: 
Valletta Mine, Aisone, Cuneo Province, Piedmont, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.3 × 1.4 × 0.6 cm
Description

Brownish red tokyoite in matrix from the Valletta mine, Cuneo Prov., Italy. 

 

Mineral Data
What's on the rock

Tokyoite

Formula: 
Ba2Mn3+(VO4)2(OH)
Strunz: 
8.BG.05
Hardness: 
4.5 - 5.0
Colour: 
Red black
Type Locality: 
Shiromaru mine (Hakumaru mine), Okutama-cho, Nishi-Tama-gun, Tokyo Metropolis, Kanto Region, Honshu Island, Japan