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Guilleminite & Malachite

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SMM726890

Guilleminite & Malachite

Type Locality

Description Tabs

Description
Locality: 
Musonoi Mine, Kolwezi, Lualaba, DR Congo
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 2.5 × 1.5 cm
Description

A lot of tufts of bright-yellow crystals of guilleminite, in this wonderful and very rich sample that comes from the type locality, together with very nice, glassy, emerald-green needles of malachite crystals that stand out with the bright yellow of the guilleminite. There are few dark-green vandenbrandeite crystals. Very very good specimen!

Boxed with Label
Mineral Data
What's on the rock

Guilleminite

Formula: 
Ba(UO2)3(SeO3)2(OH)4·3H2O
Strunz: 
4.JJ.10
Crystal System: 
Orthorhombic
Hardness: 
2.0 - 0.0
Type Locality: 
Musonoi Mine, Kolwezi, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre)

Malachite

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

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