Anthony, John W.; Bideaux, Richard A.; Bladh, Kenneth W. and Nichols, Monte C., ed. (1995). "Topaz". Handbook of Mineralogy(PDF). Vol. II (Silica, Silicates). Chantilly, VA, US: Mineralogical Society of America. ISBN0-9622097-1-6. Retrieved December 5, 2011.{{cite book}}: CS1 maint: multiple names: editors list (link)