melilite

noun

mel·​i·​lite

ˈmeləˌlīt

plural -s

: an often honey-yellow mineral (Ca,Na₂)(Mg,Fe,Al)(Si,Al)₂O₇ occurring in small tetragonal crystals that is a silicate of sodium, calcium, aluminum, and iron

especially : a member of the series consisting of an isomorphous solid-solution series between gehlenite and akermanite

Word History

Etymology

French mélilite, from méli- meli- + -lite

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