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Formula: Pb(UO2)(SiO4).H2O
Nesosilicate (insular SiO4 groups)
Crystal System: Monoclinic
Specific gravity: 5.83 to 6.5 measured, 6.256 calculated
Hardness: 4 to 5
Streak: Pale yellow brown
Colour: Ochre yellow to brownish yellow, amber brown, lemon yellow, green or reddish orange
Solubility: Gelatinises in acids
Common impurities: As,P,Ba,Fe,Mg,Ca
RADIOACTIVE
Environments
Sedimentary environments
Hydrothermal environments
Kasolite occurs as an oxidation product of uraninite associated with
other secondary minerals of uranium
(Dana).
Localities
At the Nabarlek mine, West Arnhem Region, Northern Territory, Australia, kasolite is associated with
rutherfordine, sklodowskite
and curite
(HOM).
At the Nicholson No. 1 mine, Consolidated Nicholson Mines, Goldfields District, Beaverlodge Lake area, Saskatchewan,
Canada, kasolite has been found as orange yellow crusts in association with an unidentified yellow-green
radioactive mineral in fractures near the centre of radioactivity. Both minerals are colloform and kasolite
appears to be the later of the two
(AM 36.411-444).
At the type locality, the Shinkolobwe mine, Shinkolobwe, Kambove District, Haut-Katanga, DR Congo, kasolite
occurs as radiating needles, crystalline granular, and compact-massive material in the oxidation zone of
the uranium deposit (Mindat). Associated minerals include uraninite,
torbernite, curite and
dewindtite
(AM 7.128-129, HOM).
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