silicomagnesiofluorite

noun

sil·​i·​co·​mag·​ne·​sio·​flu·​o·​rite

ˌsilə̇kōmagˌnēshōˈflu̇(ə)ˌrīt

plural -s

: a mineral Ca₄Mg₃Si₂O₅(OH)₂F₁₀ consisting of a basic fluoride and silicate of calcium and magnesium

Word History

Etymology

silic- + magnesio- + fluor- + -ite

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