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cordierite
[ kawr-dee-uh-rahyt ]
noun
- a strongly dichroic blue mineral consisting of a silicate of magnesium, aluminum, and iron: common in metamorphic rocks.
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 calleddichroiteiolite
cordierite
/ kôr′dē-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) 2 Al 4 Si 5 O 18 .
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Word History and Origins
Origin of cordierite1
1805–15; named after Pierre L. A. Cordier (1777–1861), French geologist; -ite 1
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Word History and Origins
Origin of cordierite1
C19: named after Pierre L. A. Cordier (1777–1861), French geologist who described it
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