White, Colorless, Greenish, White, Colorless, gray, pink, Greenish, White, Greenish, Reddish
Colorless, Greenish, Colorless, Green, gray, Yellow
Uneven, Subconchoidal, Uneven, Subconchoidal, Conchoidal, Brittle
Irregular/uneven, Uneven
NaAlSi 2O 6 · H 2OMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references