最終更新日：2024/07/30
(mineralogy) A rare boro-silicate mineral with the chemical formula (Mg,Fe²⁺)₄(Al,Fe³⁺)₆(SiO₄,BO₄)₅(O,OH)₂, some varieties of which are valued as gemstones.
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kornerupine
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kornerupine
noun
