India, Canada, Brazil
Mexico, Thailand, Italy, Austria
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
Green, Brown, Colorless, Greenish, gray, Yellow, White
Uneven, UnevenArthur Thomas, Gemstones (2009)
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references