释义 |
cor·di·er·ite \ˈkȯ(r)dēəˌrīt\ noun (-s) Etymology: French, from Pierre L. A. Cordier died 1861 French geologist, who first described it + French -ite : an orthorhombic mineral of various shades of blue with vitreous luster and strong dichroism consisting of a silicate of aluminum, iron, and magnesium (Mg,Fe)2Al4Si5O18 easily altered by exposure (hardness 7-7.5, specific gravity 2.60-2.66) |