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Malachite On Goethite

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PFK214863

Malachite On Goethite

Description Tabs

Description
Locality: 
Mavrolakkas, Kastro Valley, Limenaria, Thasos, East Macedonia and Thrace, Greece
Size Range: 
Cabinet (10-18 cm)
Size: 
11.5 × 7.5 × 4.3 cm
Description

A large and good example of Malachite from Thasos. Primary crystals of Malachite in needle-like style, form clusters on contrasting brown goethite!

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

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

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