diopside[dī äp′sīd′, -sid]
a light-colored, hard, crystalline pyroxene, CaMg(SiO), calcium magnesium silicate, found in some limestones and metamorphic rocks and sometimes used as a gem
Origin of diopsideFrench ; from di- (see di-) + Classical Greek opsis, appearance, sight (; from ōps, eye); associated, association in meaning with Classical Greek diopsis, transparency ; from dia-, through + opsis, sight
A light green, monoclinic pyroxene mineral, CaMgSi2O6, used as a gemstone and refractory.
Origin of diopsideFrench : di-, two (from Greek; see di–1) + Greek -opsis, –opsis.