Pink To Bluish Purple, Green, Yellow, Colorless, Gray, Blue (Very Rare)
Triphane, Kunzite, Hiddenite
RI, birefringence, optic character and spectra. Biaxial common point is 0.006 from high RI.
Triphane: yellow. Kunzite: pink to bluish purple. Hiddenite: medium to emerald green. Misnomers: Lithia emerald, hiddenite if light green or irradiated