White, Colorless, Greenish, White, Colorless, gray, pink, Greenish, White, Greenish, Reddish
Colorless, White, Brownish, Reddish, Black, Brownish, Black, Colorless, gray, White, Reddish, Brown
Uneven, Subconchoidal, Uneven, Subconchoidal, Conchoidal, Brittle
Uneven
NaAlSi 2O 6 · H 2OMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Na 3AlF 6Ulrich Henn and Claudio C.