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Strengite Cacoxenite & Nsutite

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SER731752

Strengite Cacoxenite & Nsutite

Description Tabs

Description
Locality: 
Sítio do Castelo Mine, Folgosinho, Gouveia, Guarda District, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 4 × 3.5 cm
Description

pink and red balls of strengite on cacoxenite with black lustrous nsutite

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

Nsutite

Formula: 
(Mn4+,Mn2+)(O,OH)2
Strunz: 
4.DB.15c
Hardness: 
6.5 - 8.0
Type Locality: 
Nsuta Mine (Insuta Mine; Nsuta-Gaywin Manganese concession; Nsuta-Wassaw), Tarkwa, Western Region, Ghana