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Formula: Fe3+(V5+O4).H2O
Hydrated vanadate
Crystal System: Triclinic
Specific gravity: 3.28 to 3.29 measured, 3.29 calculated
Hardness:
Streak:
Colour: Brilliant black, splinters are transparent yellowish- to greenish-brown
Luminescence:
Solubility:
Common impurities:
Magnetism: Magnetic
Environments
Sedimentary environments
Hydrothermal environments
Localities
At the type locality, the Mounana Mine, Mounana, Léboumbi-Leyou Department, Haut-Ogooué Province, Gabon,
schubnelite occurs at the base of the oxidised zone of the uranium deposit, associated with
fervanite and goethite
(HOM).
Schubnelite from the Mounana Mine -
Image
At the Gold Quarry Mine, Maggie Creek Mining Subdistrict, Carlin Trend, Eureka County, Nevada, USA,
schubnelite occurs in the a hydrothermal gold deposit associated with
kazakhstanite, fervanite
and tyuyamunite
(HOM).
Schubnelite from the Gold Quarry Mine -
Image
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