White, Colorless, Blue, Red, Green, Yellow, Violet
Blue, Grey, Greenish, Yellow, White, gray, Green, Brown
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Conchoidal
(Ca,Mg,Mn)SiO 3Gemdat.org , Management Team (2012)
Not Available