Mexico
Brazil, Madagascar, Zambia, Sri Lanka, Burma, Russia, USA, Afghanistan
Colorless, Blue, Violet, White, Brown, Colorless, Blue, Violet, White, rose, Brown, gray, Colorless, White, Violet, gray, Colorless, White, Violet, gray
Green, Blue, Yellow, Red, Brown, Blue
Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Not Available