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Brackebuschite & Tokyoite

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SKY759503

Brackebuschite & Tokyoite

Rare Mineral

Description Tabs

Description
Locality: 
Manganese Mine, Krettnich, Merzig-Wadern, Saarland, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 2.5 × 2 cm
Description

Brown crystals of the very rare vanadate brackebuschite from Krettnich

Analyzed specimen , see copy attached. Analysis shows it is an intermediate member of the series brackebuschite (58%)-tokyoite (42%)

Mineral Data
What's on the rock

Brackebuschite

Formula: 
Pb2Mn3+(VO4)2(OH)
Strunz: 
8.BG.05
Crystal System: 
Monoclinic
Hardness: 
4.0 - 5.0
Streak: 
Yellow
Type Locality: 
Venus Mine, Venus Pb-Zn deposit, El Guaico district, Sierra de Córdoba, Punilla Department, Córdoba, Argentina

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

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