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
Grey, Brownish, Blue, Colorless, White, gray, Reddish
Uneven, UnevenArthur Thomas, Gemstones (2009)
Uneven, Uneven, Gems, Sixth Edition (2006)
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)