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Rockbridgeite & Phosphosiderite

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CHP904755

Rockbridgeite & Phosphosiderite

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Description
Locality: 
Breia Mine, Moreira do Lima, Ponte de Lima, Viana do Castelo District, Portugal
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.9 × 2 cm
Description

specimen with some very good gray pseudo cubic crystals of rockbridgeite on matrix with associate violet ball of phosphosiderite.

c. 4131

Mineral Data
What's on the rock

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

Phosphosiderite

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

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