sulfoborite

noun

sul·​fo·​bo·​rite

variants or sulphoborite

ˌsəlfəˈbōrˌīt,

-ˈbȯˌrīt

plural -s

: a mineral Mg₆H₄(BO₃)₄(SO₄)₂.7H₂O consisting of hydrous acid sulfate and borate of magnesium

Word History

Etymology

German sulfoborit, from sulf- + borat borate + -it -ite

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