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Malachite Psm Cuprite

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PDM779115

Malachite Psm Cuprite

Pseudomorph

Description Tabs

Description
Locality: 
Cala Mines, Cala, Huelva, Andalusia, Spain
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.2 × 2.2 × 2 cm
Description

Brown limonitic matrix richly spotted by green octahedra. Under the loupe it is clear that these are fibrous green malachite pseudomorphs after octahedral cuprite. The original cuprite were hopper crystals, where edges grew faster that faces, and this morphology is preserved. Nice pseudomorphs from this uncommon locality. It is mounted in a Jousi box.

Found by local collectors in 2015.

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

Cuprite

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

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