Greenish, White, White, gray, Greenish, Reddish, White, gray, Greenish, Green, gray, White, gray, Greenish, Green, gray
Colorless, Yellow, Blue, Reddish, Black, Reddish, Brown, Blue, gray, Black, Reddish, Brown, Blue, gray
Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal
Subconchoidal, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
Perfect on {001}, very good on {010}, imperfect on {110}
Perfect on [001] and [011]
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
TiO 2Michael OâDonoghue , Gems, Sixth edition (2006) More from other references