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| [var. Red Beryl] Bowling, R. (2011) Topaz from Utah's Maynard Mine. Extra Lapis English: 14: 22-25. Montgomery, A. (1934) A recent find of bixbyite and associated minerals in Thomas Range, Utah. American Mineralogist: 19: 82-88. |
| Grüll, M. (2014): Weltklasse: Bixbyite aus Utah/USA. Lapis 39 (9), 40-45. King, Van (n.d.) Personal communcation. |
| [var. Morganite] Bullock, Kenneth C. (1981) Minerals and mineral localities of Utah. Bulletin 117. Utah Geological and Mineral Survey |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Personally Collected by Dr. Scott Campbell. |
| Min News 10:11 p1 |
| [var. Red Beryl] Collected by and in the collection of Alex Earl |
| Bullock, Kenneth C. (1981) Minerals and mineral localities of Utah. Bulletin 117. Utah Geological and Mineral Survey |
| [var. Red Beryl] J. Holfert, W. Mroch, J. Fuller (1996) A Field Guide to Topaz and Associated Minerals of the Thomas Range, Utah (Topaz Mountain) Vol I HM Publishing 103pp |
| [var. Red Beryl] A Field Guide to Topaz and Associated Minerals of the Thomas Range, Utah- John Holfert et al, 1996 |
Thomas Range, Juab County, Utah, USA