Dark green microcrystals of the rare vanadium mineral lenoblite from the famous Grube Clara (Clara Mine, Wolfach, Black Forest, Baden-Württemberg, Germany). — Photo: David Hospital · CC BY-SA 4.0
Lenoblite
Lenoblite is an IMA-recognized mineral species in the oxides & hydroxide class, with the chemical formula V⁴⁺₂O₄·2H₂O.
Key properties: specific gravity 3.14; optically biaxial.
IMA symbol Lnb, IMA status: approved, named in 1970.
Found in a zone of reduction below the oxidized zone of a uranium deposit (Mounana mine, Gabon).
It is found associated with Duttonite (Mounana mine, Gabon).
The name refers to André Lenoble (?–1968), formerly Head of the Laboratory of Mineralogy and Chief of Exploration, French Atomic Energy Commission.
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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