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Serrabrancaite Bermanite Bastinite & Variscite

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SER787223

Serrabrancaite Bermanite Bastinite & Variscite

Description Tabs

Description
Locality: 
Eduardo Claim, Conselheiro Pena, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.1 × 4.1 × 3.7 cm
Description

a very rich specimen good for obtain many micro by its reduction; brown tufts of the rare serrabrancaite, dark pink balls of variscite, red bermanite crystals but also black balls of robertsite and tiny rockbridgeite crystals are present

Mineral Data
What's on the rock

Serrabrancaite

Formula: 
MnPO4·H2O
Strunz: 
8.CB.05
Crystal System: 
Monoclinic
Hardness: 
3.5
Type Locality: 
Serra Branca pegmatite, Pedra Lavrada, Borborema mineral province, Paraíba, Brazil

Bermanite

Formula: 
Mn2+Mn3+2(PO4)2(OH)2·4H2O
Strunz: 
8.DC.20
Crystal System: 
Monoclinic
Hardness: 
3.5
Type Locality: 
7U7 Ranch (7-U-7 Ranch), Bagdad Mine area, Hillside, Eureka District, Yavapai Co., Arizona, USA

Bastinite

Variety Of: 

Hureaulite

Formula: 
(Mn,Fe)5(PO4)2(HPO4)2·4H2O
Strunz: 
8.CB.10
Hardness: 
5.0
Hardness: 
4.0 - 0.0
Streak: 
White
Type Locality: 
Custer Mountain lode (Snookum mine), Custer, Custer District, Custer Co., South Dakota, USA

Variscite

Formula: 
AlPO4·2H2O
Strunz: 
8.CD.10
Crystal System: 
Orthorhombic
Hardness: 
3.5 - 4.5
Streak: 
White
Type Locality: 
Meßbach Quarry, Meßbach, Plauen, Vogtland, Saxony, Germany