Greenish, White, White, gray, Greenish, Reddish, White, gray, Greenish, Green, gray, White, gray, Greenish, Green, gray
Green, Yellow, Colorless, Grey, Brown, White, Red
Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)