USA, Zambia, Madagascar, India, Sri Lanka, Russia, Australia, Color: violet, purple-violet, Hardness: 7, Refractive index: 1.54 1.55, Density: 2.65 2.66, Chemical composition: SiO2, Crystal structure: hexagonal, Lustre: vitreous, Origins: Widespread; main sources are Brazil, Uruguay, Bolivia, Argentina, USA, East Africa, Zambia, Namibia, Madagascar, India, Sri Lanka, Russia, Brazil, Uruguay, Bolivia, Argentina, Australia, Brazil, Uruguay, Bolivia, Argentina, Australia
Brazil, Tanzania, Zimbabwe, Madagascar, Burma, Sri Lanka, India
Violet, White, Colorless, Blue, Red, Green, Yellow, pink, Violet, pink
Red, Violet
Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius
Not Available
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
ConchoidalGemdat.org, Management Team (2012), ConchoidalGemdat.org, Management Team (2012)
Transparent, Transparent to translucent
TransparentGemdat.org, Management Team (2012)