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Formula: Cu(UO2)(OH)4
Hydroxide, Uranyl mineral
Crystal System: Triclinic
Specific gravity: 5.03 measured, 5.26 calculated
Hardness: 4
Streak: Green
Colour: Blackish green to dark green with bluish green tint
RADIOACTIVE
Environments
Sedimentary environments
Hydrothermal environments
Vandenbrandeite is a rare secondary mineral in the oxide
zone of hydrothermal copper-bearing uranium deposits
(HOM).
Localities
At the Shinkolobwe Mine, Shinkolobwe, Kambove District, Haut-Katanga, DR Congo, vandenbrandeite is
associated with curite, uranophane
and sharpite
(HOM).
Vandenbrandeite from Shinkolobwe - Image
At the Luiswishi Mine, Lubumbashi, Haut-Katanga, DR Congo, vandenbrandeite occurs as doubly terminated crystals
to 1 cm in length
(Dana).
At the type locality, the Kalongwe deposit, Kolwezi mining district, Lualaba, DR Congo, vandenbrandeite is
associated with cuprosklodowskite,
kasolite, sklodowskite,
malachite, chalcocite,
chalcopyrite, uraninite,
goethite,
uranophane and torbernite
(Dana, HOM).
Vandenbrandeite from Kalongwe - Image
At Rabejac Est, Le Puech, Lodève, Hérault, Occitanie, France, vandenbrandeite occurs on
pitchblende associated with
chalcopyrite, chalcocite,
kasolite, sklodowskite and
malachite. It is an alteration product of
pitchblende and chalcopyrite.
(AM 18.179-180).
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