a bluish, very hard, pleochroic, crystalline mineral, magnesium aluminum silicate, (Mg,Fe)AlSiO, used sometimes as a gem
Origin of cordieriteafter P. L. A. Cordier (1777-1861), French geologist + -ite
A dichroic violet-blue to gray mineral silicate of magnesium, aluminum, and sometimes iron. Also called dichroite .
Origin of cordieriteFrench after Pierre L. Cordier (1777-1861), French geologist
NounSee also: cordiérite
(countable and uncountable, plural cordierites)