cordierite

cordierite Definition

cor·di·er·ite (kôr′dē ər īt′)

noun

a bluish, very hard, pleochroic, crystalline mineral, magnesium aluminum silicate, (Mg,Fe) AlSiO, used sometimes as a gem

Etymology: after P. L. A. Cordier (1777-1861), Fr geologist + -ite

Browse dictionary entries near cordierite