otavite
/əʊˈtɑːvʌɪt/Mineralogy
noun
A mineral of the trigonal system consisting of cadmium carbonate, CdCO3, and occurring as crusts of minute rhombohedral crystals, usually white or greyish white in colour.
Origin
Early 20th century; earliest use found in Journal of the Chemical Society. From the name of Otavi, a town in northern Namibia + -ite, after German Otavit.