stainierite

noun

stai·​nier·​ite

ˈstīnēəˌrīt,

stīˈniˌr-

plural -s

: a rare mineral CoO(OH) consisting of cobalt oxide-hydroxide and occurring in black mammillary masses

Word History

Etymology

Dutch stainieriet, from Xavier Stainier, 20th century Belgian geologist + Dutch -iet -ite

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