单词	leucite
释义	leucite /ˈluːsʌɪt / noun [mass noun] A potassium aluminosilicate mineral, crystallizing in the tetrahedral system and typically found as grey or white glassy trapezohedra in volcanic rocks.The three commonest feldspathoids are leucite, nepheline, and sodalite.... Additionally, lamproites may contain leucite, richterite, sanidine, and occasionally nepheline, whereas kimberlites do not. Familiar examples include nepheline, leucite, and members of the sodalite and cancrinite groups. Origin Late 18th century: from Greek leukos 'white' + -ite1.
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