1. A.D. Merriman, A Concise Encyclopedia of Metallurgy (New York: American Elsevier Publishing Co., Inc.,1965), p. 549.
2. R.D. Brown, Minor Elements 2000, ed. Courtney Young (Littleton, CO: SME, 2000), pp. 307–321.
3. M.W. George, USGS, Tellurium, available at mgeorge@usgs.gov.
4. D.M. Chizhikov and V.P. Shchastlivyi, Tellurium and Tellurides, translated by E.M. Elkin (London and Wellingboroough: Collet’s Publishers Ltd., 1970), p. 38.
5. “Tellurium: Tellurium Mineral Information and Data, available at www.mindat.org/min-3906.html .