Italy, India, USA, Canada
Southern and central Africa
White, Colorless, Green, Yellow, Brown, Brown, Colorless, Yellow, White, Green
White, Colorless, Blue, Red, Green, Yellow, Violet
Brittle, Uneven, Brittle, Uneven
Not Available
NaCa16Si23AlO60(OH)8•64(H2O)
SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)