White, White, Colorless, Red, Reddish
Yellow, Red, White, White, Colorless, Blue, Red, Green, Yellow, pink, Black, Blue, Brown
Not Available
Courage, Love, Healing, Protection
Uneven, Brittle, Metallic, Gemstones (2009)
Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO2