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Cuprite & Malachite

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MGR504145

Cuprite & Malachite

Description Tabs

Description
Locality: 
Andrássy I Mine, Rudabánya, Rudabányai Mountains, Borsod-Abaúj-Zemplén County, Hungary
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.7 × 4.5 × 3.4 cm
Description

First this specimen consists of large inter grown Cuprite, then it became covered by a second generation of tiny crystals, and at last a third generation becomes a pseudomorph cast of Malachite after Cuprite. The specimen is horrible difficult to photograph and it is really much better in person. Underneath the Malachite you can see uncountable, well developed tiny Cuprite crystals. Malachite shows an intense green color and developed lustrous sprays and crystals. The specimen is developed as floater and undamaged, even bottom shows fine Cuprite crystals.

A very uncommon and good sample from this famous, classic European locality – looks very fine in each position.

Mineral Data
What's on the rock

Cuprite

Formula: 
Cu2O
Strunz: 
4.AA.10
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0

Malachite

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