White, Blue, Yellow, Brown, Green, Brownish, Greenish, gray
White, Colorless, Greenish, White, Colorless, gray, pink, Greenish, White, Greenish, Reddish
Gemstones (2009), Flexible Flexible fragments.
Uneven, Subconchoidal, Uneven, Subconchoidal, Conchoidal, Brittle
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
NaAlSi 2O 6 · H 2OMichael OâDonoghue , Gems, Sixth edition (2006) More from other references