norbergite

noun

nor·​berg·​ite

ˈnȯrˌbərˌgīt

plural -s

: a mineral Mg₃SiO₄(F,OH)₂ of the humite group composed of a magnesium silicate with fluorine and hydroxyl

Word History

Etymology

Swedish norbergit, from Norberg, Västmanland, Sweden, its locality + Swedish -it -ite

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