boracite

noun bo·ra·cite \ ˈbōrəˌsīt , ˈbȯr- \

Definition of boracite

plural -s
:a mineral Mg3B7O13Cl consisting of a borate and chloride of magnesium that is strongly pyroelectric and occurs in hard glassy crystals and in softer white masses (hardness 7, specific gravity 2.9)

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Origin and Etymology of boracite

German borazit, from Medieval Latin borac-, borax + German -it -ite


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