Southern and central Africa, Burma, Tanzania, India, Sri Lanka
India, Canada, Brazil
Yellow, White, Green, Brown, Greenish, gray
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
Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic
Uneven, UnevenArthur Thomas, Gemstones (2009)
Mg 2Si 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.