ALL meanings of cordierite
cor·di·er·ite
C c - noun cordierite 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)2AL4Si5O18.nH2O 3
- noun cordierite a bluish, very hard, pleochroic, crystalline mineral, magnesium aluminum silicate, (Mg,Fe)2 Al4Si5O18, used sometimes as a gem 3
- noun cordierite a strongly dichroic blue mineral consisting of a silicate of magnesium, aluminum, and iron: common in metamorphic rocks. 1
- noun cordierite A dark blue mineral occurring chiefly in metamorphic rocks. It consists of an aluminosilicate of magnesium, and also occurs as a dichroic gem variety. 1
- noun cordierite (mineralogy) A magnesium iron aluminium cyclosilicate. 0