a red, yellow, or brownish mineral consisting of a chloride and vanadate of lead in hexagonal crystalline form. It results from weathering of lead ores in desert regions and is a source of vanadium. Formula: Pb5(VO4)3Cl
vanadinite in American English
(vəˈnædənˌaɪt)
noun
a soft, heavy, rare, hexagonal mineral, Pb5(VO4)3Cl, an ore of vanadium and lead; lead vanadate chloride