cordierite

N แร่ สีน้ำเงินช นิดหนึ่ง  iolite

CORDIERITE

n.The mineral called otherwise iolite and dichroite.

CORDIERITE

Cor "di *er *ite (k, n. Etym: [Named after the geologist Cordier.](Min. )

cordierite

cor di er ite |ˈkôrdēəˌrīt ˈkɔrdiəraɪt | ▶noun a dark blue mineral occurring chiefly in metamorphic rocks. It consists of an aluminosilicate of magnesium, and also occurs as a dichroic gem variety. ORIGIN early 19th cent.: named after Pierre L. A. Cordier (1777 –1861 ), French geologist, + -ite 1 .

cordierite

cordierite |ˈkɔːdɪərʌɪt | ▶noun [ mass noun ] a dark blue mineral occurring chiefly in metamorphic rocks. It consists of an aluminosilicate of magnesium and iron, and also occurs as a dichroic gem variety. ORIGIN early 19th cent.: named after Pierre L. A. Cordier (1777 –1861 ), French geologist, + -ite 1 .