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Cacoxenite & Aluminian Strengite

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CR848098

Cacoxenite & Aluminian Strengite

Description Tabs

Description
Locality: 
Miguel Vacas Mine, Conceição, Vila Viçosa, Évora District, Portugal
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 3.2 × 2 cm
Description

Very beautiful (especially under the microscope) specimen of yellow-brown cacoxenite sprays and balls with white to pale pink Al-strengite crystals and minor green chalcosiderite crystals on matrix.

Very rich and good specimen!

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

Aluminian Strengite

Variety Of: 

Strengite

Formula: 
FePO4·2H2O
Strunz: 
8.CD.10
Hardness: 
3.5 - 4.0
Hardness: 
0.0