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USA | |
| [var. Watermelon Tourmaline] 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. Maine Geological Survey. |
| Gary Powell |
| King, Van (n.d.) Personal communcation. |
| [var. Watermelon Tourmaline] King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
| Mineral News (1998) 14:8 pp2,9 Mineral News (1994) 10:12 pp1,2 |
| Found Oct 2021 and optically studied. Lloyd W. Alexander |
| [var. Rubellite] USGS Bull 445 |
| [var. Rubellite] USGS Bull 445 |
| |
| [var. Rubellite] 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. |
| [var. Achroite] King, V. T., 2006, Minerals of Halls Ridge and Plumbago-Puzzle Mountain, Newry, ... Maine, Mineral News, v. 22(6): p. 1-3. |
| [var. Verdelite] USGS Bull 445 |
| [var. Verdelite] |
| [var. Watermelon Tourmaline] King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
| www.mindat.org (2003) https://www.mindat.org/min-4003.html Confirmed by Alexander U. Falster at Maine Mineral and Gem Museum. Photo ID: 940821h ttps://www.mindat.org/photo-940821.html |
| King, Van (n.d.) Personal communcation. |
| [var. Rubellite] Bastin, Edson Sunderland (1911) Geology of the pegmatites and associated rocks of Maine, including feldspar, quartz, mica, and gem deposits. United States Geological Survey, Bulletin 445, 152 pgs. www.cseg.ca/conferences/2000/825.PDF. |
| [var. Achroite] Vandall King |
| Vandall King |
Dunton Gem Quarry, Newry, Oxford County, Maine, USA