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Phosphosiderite & Nsutite

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SER732887

Phosphosiderite & Nsutite

Description Tabs

Description
Locality: 
Folgosinho, Gouveia, Guarda District, Portugal
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 1.7 × 1.6 cm
Description

Purple balls of phosphosiderite with black lustrous nsutite

Mineral Data
What's on the rock

Phosphosiderite

Formula: 
FePO4·2H2O
Strunz: 
8.CD.05
Hardness: 
3.5 - 4.0
Type Locality: 
Kalterborn Mine, Eiserfeld, Siegerland, North Rhine-Westphalia, Germany

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
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