Moluranite
Moluranite is an IMA-recognized mineral species in the molybdate class, with the chemical formula H₄U⁴⁺(UO₂)₃(MoO₄)₇·18H₂O.
Key properties: Mohs hardness 3–4; specific gravity 4; Resinous luster.
IMA symbol Mlu, grandfathered status — known before the IMA’s founding, named in 1957.
Found in fine fissures in granulated albite, in part replacing brannerite.
It is found associated with Brannerite, molybdenite, chalcopyrite, galena, irignite.
The name refers to MOLybdenum and URANium in the composition.
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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