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