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USA | |
| Speckels, M.L. (1965) Minerals for everyone: the complete guide to micromounts. Gembooks, Mentone, California. |
| King, Vandall T. (2000) Mineralogy of Maine Vol. 2 - Mining History, Gems, and Geology. Maine Geological Survey. King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
| King, Vandall T. (2000) Mineralogy of Maine Vol. 2 - Mining History, Gems, and Geology. Maine Geological Survey. King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
| King, Van (n.d.) Personal communcation. |
| King, Vandall T. (2000) Mineralogy of Maine Vol. 2 - Mining History, Gems, and Geology. Maine Geological Survey. King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
| King, Vandall T. (2000) Mineralogy of Maine Vol. 2 - Mining History, Gems, and Geology. Maine Geological Survey. King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
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| King, Vandall T. (2000) Mineralogy of Maine Vol. 2 - Mining History, Gems, and Geology. Maine Geological Survey. King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
| King, Vandall T. (2000) Mineralogy of Maine Vol. 2 - Mining History, Gems, and Geology. Maine Geological Survey. King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
| Simmons, W. B. and Falster, A. U. (2022) A new Spodumene-rich Pegmatite from Plumbago Mountain, Oxford County, Maine in "Forty-Eighth Rochester Mineralogical Symposium: Contributed Papers in Specimen Mineralogy—Part 3." Rocks & Minerals, 97(3), pp. 276–277 Gary Freeman |
| [var. Oligoclase] Cheney, John T., Guidotti, Charles V. (1973) Paragonite contents of coexisting, but texturally different, muscovites from pelitic schists of the Puzzle Mountain area, Maine. American Mineralogist, 58 (11-12) 1076-1079 |
| King, Vandall T. (2000) Mineralogy of Maine Vol. 2 - Mining History, Gems, and Geology. Maine Geological Survey. King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
| King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. King, V, 2006, Minerals of Halls Ridge and Plumbago-Puzzle Mountain, Newry, Oxford County, Maine, Mineral News, v. 22 (6), p. 1-3. |
| [var. Cleavelandite] Shainin, V. and Dellwig, L., 1955, Pegmatites and Associated Rocks in the Newry Hill Area, Oxford County, Maine. |
| King, Van (n.d.) Personal communcation. |
| [var. Cleavelandite] King, Van (n.d.) Personal communcation. |
| King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. King, V, 2006, Minerals of Halls Ridge and Plumbago-Puzzle Mountain, Newry, Oxford County, Maine, Mineral News, v. 22 (6), p. 1-3. |
| King, Van (n.d.) Personal communcation. |
Crooker Gem Pegmatite Quarries, Newry, Oxford County, Maine, USA