Brazil, Kenya, Madagascar, Mozambique, Sri Lanka
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
Red
Violet, White, Colorless, Blue, Red, Green, Yellow, pink, Violet, pink
Taurus
Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius
Gemmological Tables (2004)
Transparent, Transparent to translucent