White, Pale pink, Colorless, pink, Yellow
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
Mn2+ BO 2(OH)Anthony et al , Handbook of mineralogy (2001)
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)