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Cacoxenite & Chalcosiderite

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CR803529

Cacoxenite & Chalcosiderite

Classic Locality

Description Tabs

Description
Locality: 
Minas del Horcajo, Almodóvar del Campo, Ciudad Real, Castilla La Mancha, Spain
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.6 × 3 × 2.5 cm
Description

This is a fantastic and very old cacoxenite specimen from the famous El Horcajo Lead mines in Spain.

Beautiful golden hedgehogs and sprays of cacoxenite crystals with green chalcosiderite crystals on matrix.

Mineral Data
What's on the rock

Cacoxenite

Formula: 
Fe3+24Al(PO4)17O6(OH)12·17H2O
Strunz: 
8.DC.40
Hardness: 
3.0 - 4.0
Type Locality: 
Hrbek Mine, Svatá Dobrotivá (St Benigna), Beroun (Beraun), Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic

Chalcosiderite

Formula: 
Cu(Fe3+,Al)6(PO4)4(OH)8·4H2O
Strunz: 
8.DD.15
Crystal System: 
Triclinic
Hardness: 
4.5
Type Locality: 
Phoenix United Mine, Minions, Linkinhorne, Liskeard District, Cornwall, England, UK