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USA | |
| King, Vandall T. (2000) Mineralogy of Maine Vol. 2 - Mining History, Gems, and Geology. Maine Geological Survey. |
| Moore, Paul B. (1973) Pegmatite Phosphates: Descriptive Mineralogy and Crystal Chemistry. The Mineralogical Record, 4 (3) 103-130 Moore, P.B., 2000, in Mineralogy of Maine v2, p. 333-336. |
| Falster, Alexander U., Simmons, William B., Webber, Karen L., Dallaire, Donald A., Nizamoff, James W., Sprague, Raymond A. (2019) The Emmons Pegmatite, Greenwood, Oxford County, Maine. Rocks & Minerals, 94 (6) 498-519 doi:10.1080/00357529.2019.1641021 Mineral News (1995) 11:2 pp1,2,5 Mineral News (1991) 7:3 pp6,7,10 Mineralogical Record (1991) 22:381-393 Moore, P.B., 2000, in Mineralogy of Maine v2, p. 333-336. |
| King, Vandall T. (2000) Mineralogy of Maine Vol. 2 - Mining History, Gems, and Geology. Maine Geological Survey. |
| Cameron, Eugene N., , (1954) Pegmatite investigations, 1942-45, in New England. Professional Paper 255. US Geological Survey doi:10.3133/pp255 Cameron, Eugene N. |
| Gary Freeman |
| Moore, P. B., 2000, Analysis of Primary Phosphates ..., Mineralogy of Maine, v. 2. |
| King, Vandall T. (2000) Mineralogy of Maine Vol. 2 - Mining History, Gems, and Geology. Maine Geological Survey. |
| [var. Sicklerite] Found during study of Ryerson Hill pegmatite summer of 2019. Id by Lloyd W. Alexander. Confirmed at MMGM Lab. |
Emmons Quarry, Uncle Tom Mountain, Greenwood, Oxford County, Maine, USA