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- n. A black form of vanadium sulfide that is an ore of vanadium
Sorry, no etymologies found.
The Minasragra vanadium deposit of Peru contains patronite (vanadium sulphide) associated with a peculiar nickel-bearing sulphide and a black carbonaceous mineral called "quisqueite," in a lens-shaped body of unknown depth, enclosed by red shales and porphyry dikes.
The patronite has altered at the surface to red and brown hydrated vanadium oxides.