(mineralogy) A mineral composed of a lead and copper vanadate.
Origin of mottramite
1875-80 Named after Mottram, England, where it was first identified
Mottramite Sentence Examples
In small quantities, vanadium is found widely distributed, the chief sources being vanadite, mottramite, descloizite, roscoelite, dechenite and pucherite, whilst it is also found as a constituent of various clays, iron-ores and pitchblendes.
Vanadium salts may be obtained from mottramite by digesting the mineral with concentrated hydrochloric acid, the liquid being run off and the residue well washed; the acid liquid and the washings are then evaporated with ammonium chloride, when ammonium metavanadate separates.
Small amounts of the lead-bearing species cerussite, pyromorphite, mottramite and vanadinite were also identified.