1. Bancroft, P. 1984. Gem and crystal treasures. Fallbrook, CA: Western Enterprises and The Mineralogical Record.
2. Bauer, J., and V. Bouska. 1993. A guide in color to precious and semiprecious stones. London, UK: Octopus Books.
3. Famous mineral localities: The Alto Ligonha pegmatites, Mozambique;Bettencourt Dias M.;Mineralogical Record,2000
4. Blauwet, D. 2004. World-class localities: The Shigar, Basha and Braldu valleys. In Pakistan: Minerals, mountains and majesty, ed. G. Agozzino et al., 36–47. ExtraLapis 6. East Hampton, CT: Lapis International.
5. Blauwet, D. 2011. On the topaz trail in Gigit-Baltistan. In Topaz: Perfect cleavage, ed. J. Clifford et al., 46–57. Mineral monograph 14. Denver, CO: Lithographie.