Green, Greenish, Blue, Red
Greenish, White, White, gray, Greenish, Reddish, White, gray, Greenish, Green, gray, White, gray, Greenish, Green, gray
Not Available
Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal
SiO 2Arthur Thomas , Gemstones (2009)
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)