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| King, Van (n.d.) Personal communcation. |
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| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. (1984) Precambrian deposits of zinc-copper-lead sulfides and zinc spinel (gahnite) in Colorado. Bulletin Vol. 1550. US Geological Survey doi:10.3133/b1550 |
| The Canadian Mineralogist Vol. 43, pp. 601-622 (2005) |
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
| Heimann, Adriana, Spry, Paul G., Teale, Graham S. (2005) Zincian spinel associated with metamorphosed proterozoic base-metal sulfide occurrences, Colorado: A re-evaluation of gahnite composition as a guide in exploration. The Canadian Mineralogist, 43(2), 601-622. Mineralogical Record (2001) 32, 245. Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. Voynick, S.M. (1994) Colorado Rockhounding: A Guide to Minerals, Gemstones, and Fossils. Mountain Press Publishing Company, Inc., Missoula MT, 384 pages. Mason, Anita (1976) The World of Rocks and Minerals. Larousse & Co., Inc., New York. Van Alstine, R.E. (1974) Geology and mineral deposits of the Poncha Springs SE Quadrangle, Chaffee County, Colorado. U.S. Geological Survey Professional Paper 829. Penfield, S.L., Sperry, F.L. (1886) On pseudomorphs of garnet from Lake Superior and Salida, Colorado. American Journal of Science, series 3, 32, 307-311 Rocks & Minerals (xxxx) 17, 204. |
| Phillip Betancourt |
Sedalia Mine, Sedalia Mining District, Chaffee County, Colorado, USA