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Arseniosiderite & Pharmacosiderite

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PAV955542

Arseniosiderite & Pharmacosiderite

Classic Locality

Description Tabs

Description
Locality: 
María Josefa Mine, Rodalquilar, Níjar, Almería, Andalusia, Spain
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1.7 × 1.3 cm
Description

Very nice combination of 'flower shape' aggregates of arseniosiderite with yellow/orange pharmacosiderite.

Acquired: 
Boxed with Label
Mineral Data
What's on the rock

Arseniosiderite

Formula: 
Ca2Fe3+3(AsO4)3O2·3H2O
Strunz: 
8.DH.30
Crystal System: 
Monoclinic
Hardness: 
4.5
Type Locality: 
Manganese deposit, Romanèche-Thorens, La Chapelle-de-Guinchay, Saône-et-Loire, Burgundy, France

Pharmacosiderite

Formula: 
KFe3+4(AsO4)3(OH)4·6-7H2O
Strunz: 
8.DK.10
Hardness: 
2.5
Streak: 
white
Type Locality: 
Carharrack Mine, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK