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Goethite Descloizite & Calcite

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SER1039622

Goethite Descloizite & Calcite

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Description
Locality: 
Preguiça Mine, Sobral da Adiça, Moura, Beja District, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.1 × 2.6 × 2.6 cm
Description

hundreds of tiny, iridescent balls of goethite host dozens of brown descloizite crystals and some scalenohedron of calcite

Mineral Data
What's on the rock

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

Descloizite

Formula: 
Pb(Zn,Cu)(VO4)(OH)
Strunz: 
8.BH.40
Hardness: 
3.0 - 3.5
Type Locality: 
Sierra de Córdoba, Punilla Department, Córdoba, Argentina

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Current price

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Start 23 Apr 18:00
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