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Strengite Eleonorite & Nsutite

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SER747576

Strengite Eleonorite & Nsutite

Description Tabs

Description
Locality: 
Sítio do Castelo Mine, Folgosinho, Gouveia, Guarda District, Portugal
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 4.2 × 4.1 cm
Description

a large specimen featuring a large vug filled with pink and purple balls of strengite, orange tufts of eleonorite and black nsutite, very aesthetitc

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

Eleonorite

Formula: 
Fe3+6(PO4)4O(OH)4 · 6H2O
Group Parent: 
Beraunite Group
Crystal System: 
Monoclinic
Hardness: 
3½ - 4
Colour: 
red, reddish brown
Type Locality: 
Eleonore Mine, Rodheim-Bieber, Wetzlar, Hesse, Germany & Rotläufchen Mine, Waldgirmes, Wetzlar, Hesse, 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