[dahy-op-sahyd, -sid] 
| a monoclinic pyroxene mineral, calcium magnesium silicate, CaMg(SiO3)2, occurring in various colors, usually in crystals. |
| di·op·side (dī-ŏp'sīd') n. A light green, monoclinic pyroxene mineral, CaMgSi2O6, used as a gemstone and refractory. [French : di-, two (from Greek; see di-1) + Greek -opsis, -opsis.] |
| diopside (dī-ŏp'sīd') Pronunciation Key
A light green, monoclinic variety of pyroxene, used as a gemstone and as a refractory material. Chemical formula: CaMgSi2O6. |
saɪd