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- East Mount Apatite Mining District
| Thompson, Woodrow B., Joyner, Ronald L., Woodman, Raymond G., King, Vandall T. (1998) Bulletin (41), A Collector's Guide to Maine Mineral Localities (3rd ed.) Maine Geological Survey |
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| Bastin, E.S. (1911) Geology of the pegmatites and associated rocks of Maine. United States Geological Survey Bulletin Bulletin 445. |
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| King, Vandall T. (2000) Mineralogy of Maine Vol. 2 - Mining History, Gems, and Geology. Maine Geological Survey. |
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| Thompson, Woodrow B., Joyner, Ronald L., Woodman, Raymond G., King, Vandall T. (1998) Bulletin (41), A Collector's Guide to Maine Mineral Localities (3rd ed.) Maine Geological Survey
USGS Bull 445 |
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- West Mount Apatite Mining District
| Barton, W. & C. E. Goldsmith (1968) New England Beryllium investigations. US Bureau Mines RI 7070 |
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| USGS Bull 445 |
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| Wise, M. A. (2007). Crystallization of 'pocket' berthierine from the pulsifer granitic pegmatite, Poland, Maine, USA. Clays and Clay Minerals, 55(6), 583-592.
Rocks and Minerals, (1997) 72:44-48 |
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| Morrill (1958) Maine Mines & Minerals: Vol 1 - Western Maine.
Fisher, L.W. (1934) Graphite In Pegmatite. American Mineralogist, 19(4), 169-177. |
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| King, Vandall T. (2000) Mineralogy of Maine Vol. 2 - Mining History, Gems, and Geology. Maine Geological Survey. |
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| King, Van (n.d.) Personal communcation. |
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| Rand, John R., Caldwell, Dabney W., Austin, Muriel B. (1957) Maine Pegmatite Mines and Prospects and Associated Minerals. Vol 1. Minerals Resources Index, Department of Development of Industry and Commerce. 43pp. |
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| King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
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| [var. Amazonite] carson armstrong |
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| W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41 |
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| King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
Greenlaw Quarry, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA