trimerite

noun

trim·​er·​ite

ˈtriməˌrīt

plural -s

: a mineral Be(Mn,Ca)(SiO₄) consisting of a silicate of manganese, calcium, and beryllium and occurring in salmon-colored tabular crystals (hardness 6–7, specific gravity 3.5)

Word History

Etymology

German trimerit, from Greek trimerēs of three parts + German -it -ite

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