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(mineralogy) A mineral of silica-poor igneous, plutonic and volcanic rocks. Chemically, leucite is a potassium feldspar with insufficient silica to satisfy the chemical bonds. Because of the unfilled bonds, leucite weathers rapidly and can only be seen as inclusions in freshly broken rock.
Related-word data is supplemented by the Datamuse API. Datamuse results are suggestions, not automatic replacements.