Brazil, Madagascar, Russia, USA, Mexico, Pakistan, brown, Yellow, Orange, Brazil, Sri Lanka, Pakistan, Russia, brown, Yellow, Orange, Brazil, Sri Lanka, Pakistan, Russia
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
Yellow, Blue, Green, Red, White, Colorless, Blue, Red, Green, Yellow, pink, Brown
Violet, White, Colorless, Blue, Red, Green, Yellow, pink, Violet, pink
Sagittarius
Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)