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
Southern and central Africa
Yellow, Colorless, Brown, Blue, Brown, Colorless, Green, gray
Blue
Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)
Transparent, Translucent, Not Available, Transparent . Star Diopside is opaque .
Transparent, Translucent