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Malachite Azurite Goethite & Pyrite

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PAV925738

Malachite Azurite Goethite & Pyrite

Classic Locality

Description Tabs

Description
Locality: 
Cerro do Algaré Mine, Almodôvar, Beja District, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.8 × 3.1 × 2 cm
Description

A very nice classic!

A 'double pseudomorphose' specimen: malachite after azurite, not complete as wee can see the azurite core; goethite after pyrite (the brown spots scattered over the specimen).

Collected: 
2009
Boxed with Label
Mineral Data
What's on the rock

Malachite

Formula: 
Cu2(CO3)(OH)2
Strunz: 
5.BA.10
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0

Azurite

Formula: 
Cu3(CO3)2(OH)2
Strunz: 
5.BA.05
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0
Type Locality: 
Chessy copper mines, Chessy-les-Mines, Le Bois d'Oingt, Rhône, Rhône-Alpes, 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

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5