Yellow, Red, Reddish, Brown, Colorless, White, Yellow, Red, Reddish, Brown, Colorless, White, gray, White, gray, Reddish, White, gray, Reddish, White, gray, Reddish
White, Colorless, Blue, Red, Green, Yellow, Violet
Conchoidal, Uneven
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
KAl3(SO4)2(OH)6
(Ca,Mg,Mn)SiO 3Gemdat.org , Management Team (2012)