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
USA, Mexico, Austria, India, Southern and central Africa, Australia, Argentina, Mexico, Spain, Argentina, Mexico, Spain
Violet, White, Colorless, Blue, Red, Green, Yellow, pink, Violet, pink
Red, Brown, rose
Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius, Pisces, Scorpio, Sagittarius
Scorpio, Leo, Scorpio, Leo, Scorpio, Leo
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Uneven, Conchoidal, Conchoidal to uneven, Brittle
Transparent, Transparent to translucent
Transparent, Opaque, Transparent to nearly opaque