Optical Spectra of Sapphirine, Mg4(Mg3Al9)O4[Si3Al9O36]
- Scarratt K (1987) Notes from the Laboratory - 11. Journal of Gemmology 20, 406-422.
- Percival MJL (1990) Optical absorption spectroscopy of
doped materials: the P213-P212121
phase transition in K2(Cd0.98Co0.02)2(SO4)3.
Mineralogical Magazine 54, 525-536.
- Langer
K, Platonov ANV, Matsuk SS, Andrut M (1994): Electronic absorption
spectra of chromiumbearing sapphirine. Physics Chern.
Minerals, 21,
29-35.
- Choudhary,
G (2013) An ornamental sapphirine - cordierite - sillimanite rock
from South India. Australian Gemmologist 25, 146-151.