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| Boucot, Arthur J., Field, Michael T., Fletcher, Raymond, Forbes, William H., Naylor, Richard S., and Pavlides, Louis (1964) Reconnaissance Bedrock Geology of the Presque Isle Quadrangle, Maine, Quadrangle Mapping Series 2, Department of Economic Development, Augusta, Maine, pp 123 + plate. |
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| 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. |
| Houston, Robert S., 1956, Genetic Study of Some Pyrrhotite Deposits of Maine and New Brunswick, Department of Development of Industry and Commerce, Augusta, Maine, pp. 117 + 6 plates. |
| Wandke, A., 1922, A Petrologic Study of the Cape Neddick Gabbro, A, J Sci fifth series 4:295-304 |