Colorless, Yellow, Brown, Green, Colorless, Green, Yellow, Red, Reddish, Brown
White, Colorless, Blue, Red, Green, Yellow, Violet
Brittle, Metallic, Brittle, Metallic
Not Available
Ca(Mg,Al)3(Al3Si)O10(OH)2
(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)