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
Austria, Zimbabwe, Australia
Violet, White, Colorless, Blue, Red, Green, Yellow, pink, Violet, pink
Red, Brown, Violet, Red, Brown
Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius
Not Available
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Uneven, Subconchoidal, Conchoidal, Brittle