Cousinite
Cousinite is an IMA-recognized mineral species in the molybdate class, with the chemical formula MgU⁴⁺₂(MoO₄)₂(OH)₆·2H₂O.
Key properties: Vitreous luster.
IMA symbol Cus, IMA status: questionable, named in 1958.
Occurs as an alteration product of molybdenite-bearing uranium ore.
It is found associated with Uraninite, molybdenite, wulfenite.
The mineral was named to honor Jules Cousin (1884–1965), President of the Board of Directors of the Union Minière du Haut-Katanga, Congo.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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