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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 |
| King, V. (ed), 2009, Maine Feldspar, Families, and Feuds. |
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| Cameron, Eugene N., , (1954) Pegmatite investigations, 1942-45, in New England. Professional Paper 255. US Geological Survey doi:10.3133/pp255 King, V. (ed.), 2009, Maine feldspar, Families, and Feuds. Cameron, Eugene N. |
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| King, V. (ed.), 2009, Maine feldspar, Families, and Feuds |
| Cameron, Eugene N., , (1954) Pegmatite investigations, 1942-45, in New England. Professional Paper 255. US Geological Survey doi:10.3133/pp255 King, V. (ed.), 2009, Maine feldspar, Families, and Feuds Cameron, Eugene N. |
| King, V. T., 2008, Maine Feldspar, Families, and Feuds. |
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| Cameron, Eugene N., , (1954) Pegmatite investigations, 1942-45, in New England. Professional Paper 255. US Geological Survey doi:10.3133/pp255 King, V. (ed.), 2009, Maine feldspar, Families, and Feuds Cameron, Eugene N. |
| King, V. (ed.), 2009, Maine feldspar, Families, and Feuds |
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| King, V. (ed.), 2009, Maine feldspar, Families, and Feuds |
| King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
Bumpus Quarry, Albany, Oxford County, Maine, USA