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| Rocks & Minerals (2007) 82: 242. 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 Cameron, Eugene N., , (1954) Pegmatite investigations, 1942-45, in New England. Professional Paper 255. US Geological Survey doi:10.3133/pp255 Cameron, Eugene N. |
| Cameron, Eugene N., , (1954) Pegmatite investigations, 1942-45, in New England. Professional Paper 255. US Geological Survey doi:10.3133/pp255 Cameron, Eugene N. |
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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 Cameron, Eugene N. |
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| [var. Aquamarine] Tim Blake, Lookout Mine Owner |
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Black Mountain Quarry, Rumford, Oxford County, Maine, USA