Mexico
Canada, Mexico, Brazil, Tanzania, Madagascar, Sri Lanka
Colorless, Blue, Violet, White, Brown, Colorless, Blue, Violet, White, rose, Brown, gray, Colorless, White, Violet, gray, Colorless, White, Violet, gray
Yellow, Red, Brown, yellowish orange
Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Not Available