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Stewartite & Phosphosiderite & Strunzite

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CHP1027780

Stewartite & Phosphosiderite & Strunzite

Classic Locality

Description Tabs

Description
Locality: 
Pedra da Moura Mine, São Lourenço de Touvedo, Ponte da Barca, Viana do Castelo District, Portugal
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.3 × 3.8 × 2.8 cm
Description

specimen with many very nice yellow crystals of stewartite with radiating groups of light yellow needles of strunzite and violet phosphosiderite on matrix.

c. 7736

Mineral Data
What's on the rock

Stewartite

Formula: 
Mn2+Fe3+2(PO4)2(OH)2·8H2O
Strunz: 
8.DC.30
Hardness: 
0.0
Streak: 
White
Type Locality: 
Stewart Mine (MS 6162; Stewart Lithia mine), Tourmaline Queen Mountain (Pala Mtn; Queen Mtn), Pala, Pala District, San Diego Co., California, USA

Phosphosiderite

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

Strunzite

Formula: 
Mn2+Fe3+2(PO4)2(OH)2·6H2O
Strunz: 
8.DC.25
Hardness: 
4.0
Streak: 
White
Type Locality: 
Hagendorf South Pegmatite (Cornelia Mine; Hagendorf South Open Cut), Hagendorf, Waidhaus, Upper Palatinate, Bavaria, Germany

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