Guatemala, Russia, Columbia, Canada, Italy
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
White, Red, Brown, Green, gray
Yellow, Colorless, Brown, Blue, Brown, Colorless, Green, gray
Splintery, UnevenArthur Thomas, Difficult, Fibrous
Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
Translucent
Transparent, Translucent, Not Available, Transparent . Star Diopside is opaque .