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Formula: Pb(U6+O2)2(V5+O4)2.5H2O
Hydrated uranyl vanadate,
francevillite group, forms a series with
francevillite
Crystal System: Orthorhombic
Specific gravity: 4.88 measured, 4.94 calculated
Hardness: 3
Colour: Canary-yellow
RADIOACTIVE
Environments
Sedimentary environments
Hydrothermal environments
Localities
At Abertamy, Karlovy Vary District, Karlovy Vary Region, Czech Republic, curienite is associated with
sphalerite, galena,
uraninite and quartz
(HOM).
At Jáchymov, Karlovy Vary District, Karlovy Vary Region, Czech Republic, curienite is associated with
mottramite, metatorbernite and
zeunerite
(HOM).
At the type locality, Mounana Mine, Mounana, Léboumbi-Leyou Department, Haut-Ogooué Province, Gabon, curienite occurs
in the oxidised zone of the lead-bearing
uranium-vanadium deposit. Associated minerals
include francevillite, duttonite,
vanuralite, chervetite,
mottramite, carnotite,
dewindtite, torbernite,
uranopilite, johannite and
kasolite
(HOM).
The curienite occurs as a microcrystalline powder on tabular crystals of
francevillite in mineralised
sandstones
(AM 54.1218-1223).
Curienite from the Mounana Mine - Image
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