コージェライト

noun

cordierite

A magnesium iron aluminium cyclosilicate mineral; also known as iolite in gemology. Technical term used in mineralogy.

See also: 菫青石

• コージェライトは熱ねつ膨ぼう張ちょう率りつが低ひくいため、耐たい熱ねつ材ざい料りょうに使つかわれる。

  Cordierite is used in heat-resistant materials because of its low thermal expansion coefficient.