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USA | |
| Wannamaker, P. E., Hulen, J. B., & Heizler, M. T. (2000). Early Miocene lamproite from the Colorado Plateau tectonic province, southeastern Utah, USA. Journal of Volcanology and Geothermal Research, 96(3-4), 175-190. |
| Bullock, Kenneth C. (1981) Minerals and mineral localities of Utah. Bulletin 117. Utah Geological and Mineral Survey |