cordierite

[ kawr-dee-uh-rahyt ]
/ ˈkɔr di əˌraɪt /

noun

a strongly dichroic blue mineral consisting of a silicate of magnesium, aluminum, and iron: common in metamorphic rocks.
Also called dichroite, iolite.

Origin of cordierite

1805–15; named after Pierre L. A. Cordier (1777–1861), French geologist; see -ite1

British Dictionary definitions for cordierite

cordierite
/ (ˈkɔːdɪəˌraɪt) /

noun

a grey or violet-blue dichroic mineral that consists of magnesium aluminium iron silicate in orthorhombic crystalline form and is found in metamorphic rocks. Formula: (Mg,Fe) 2 AL 4 Si 5 O 18 .nH 2 O Also called: dichroite, iolite

Word Origin for cordierite

C19: named after Pierre L. A. Cordier (1777–1861), French geologist who described it

Scientific definitions for cordierite

cordierite
[ kôrdē-ə-rīt′ ]

A light-blue to dark-blue or gray orthorhombic mineral. Cordierite is a silicate of magnesium, aluminum, and sometimes iron, and is found in granites and in metamorphic rocks that form under relatively low-pressure conditions. Chemical formula: (Mg,Fe)2Al4Si5O18.