India, Canada, Brazil
Southern and central Africa, Orange, blue, Orange, blue
Colorless, Reddish, White, pink, Green, Yellow, Violet, White, pink, Green, Yellow, Violet, White, Colorless, Blue, Green, Brown, Yellow, pink, Violet, White, pink, Green, Yellow, Violet
White, Blue
Uneven, UnevenArthur Thomas, Gemstones (2009)
Irregular, Irregular, Gemstones of the world (2001)
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
CaCO 3Ulrich Henn and Claudio C.