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Reddingite Hureaulite Phosphosiderite & Rockbridgeite

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SCH69552

Reddingite Hureaulite Phosphosiderite & Rockbridgeite

Description Tabs

Description
Locality: 
Cigana (Jocão), Galiléia, Minas Gerais, Brazil
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1.8 × 1.8 cm
Description

Superb pink hureaulite crystals to 2mm in a matrix with fibrous green rockbidgeite at the back. Translucent, brown, pseudo-octahedral reddingite crystals to 1.5mm are covering the matrix.

There is a growth of bright deep purple phosphosiderite crystals at one side. Great combo phosphate specimen.

Mineral Data
What's on the rock

Reddingite

Formula: 
(Mn2+,Fe2+)3(PO4)2·3H2O
Strunz: 
8.CC.05
Hardness: 
3.5
Type Locality: 
Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield Co., Connecticut, USA

Hureaulite

Formula: 
(Mn,Fe)5(PO4)2(HPO4)2·4H2O
Strunz: 
8.CB.10
Hardness: 
5.0
Type Locality: 
Les Hureaux, Saint-Sylvestre, Haute-Vienne, Limousin, France

Phosphosiderite

Formula: 
FePO4·2H2O
Strunz: 
8.CD.05
Hardness: 
3.5 - 4.0
Type Locality: 
Kalterborn Mine, Eiserfeld, Siegerland, North Rhine-Westphalia, Germany

Rockbridgeite

Formula: 
Fe2+Fe3+4(PO4)3(OH)5
Strunz: 
8.BC.10
Crystal System: 
Orthorhombic
Hardness: 
3.5 - 4.5
Type Locality: 
Midvale Mine, South Mountain, Midvale, Rockbridge Co., Virginia, USA
schani

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