Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Strengite Cacoxenite & Chalcosiderite

Views:
Watches:
CR153830

Strengite Cacoxenite & Chalcosiderite

Description Tabs

Description
Locality: 
Miguel Vacas Mine, Conceição, Vila Viçosa, Évora District, Portugal
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.5 × 5.5 × 4.8 cm
Description

Stunning globular strengite crystals (Var. Aluminian Strengite) on a bed of beautiful yellow-orange cacoxenite with green chalcosiderite crystals.

Very attractive and rich specimen collected 1984.

Mineral Data
What's on the rock

Strengite

Formula: 
FePO4·2H2O
Strunz: 
8.CD.10
Hardness: 
3.5 - 4.0
Streak: 
white
Type Locality: 
Eleonore Mine, Rodheim-Bieber, Wetzlar, Hesse, Germany

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