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Ranciéite Goethite

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SCH108393

Ranciéite Goethite

Description Tabs

Description
Locality: 
El Conjuro Mines, Busquistar, Granada, Andalusia, Spain
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.1 × 2.8 × 3.1 cm
Description

Excellent purpleish silver rancieite crystals set on colloform goethite.

 

Mineral Data
What's on the rock

Ranciéite

Formula: 
(Ca,Mn)Mn4O9·3H2O
Strunz: 
4.FL.40
Crystal System: 
Hexagonal
Hardness: 
2.5 - 3.0
Type Locality: 
Le Rancié Mine, Sem, Vicdessos, Ariège, Midi-Pyrénées, France

Goethite

Formula: 
α-Fe3+O(OH)
Strunz: 
4.00.
Crystal System: 
Orthorhombic
Hardness: 
5.0 - 5.5
Type Locality: 
Hollertszug Mine (Hollerter Zug Mine), Dermbach, Herdorf, Siegerland, Rhineland-Palatinate, Germany
schani

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