Canada, Southern and central Africa
USA, Brazyl, Austria, Italy, Tanzania, Pakistan, Russia, Sri Lanka, Burma, Color: green, yellow-green, Not Available, Not Available, Not Available, Hardness: 5.5 6, Refractive index: 1.66 1.71, Density: 3.25 3.55, Chemical composition: CaMg(Si2O6), Crystal structure: monoclinic, Origins: USA, Brazyl, Austria, Italy, Tanzania, Pakistan, Russia, Sri Lanka
Violet, Colorless, pink
Yellow, Colorless, Brown, Blue, Brown, Colorless, Green, gray
Conchoidal, Splintery
Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
Gemmological Tables (2004) More from other references
Transparent, Translucent, Not Available, Transparent . Star Diopside is opaque .