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| King, Van (n.d.) Personal communcation. |
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| Leavitt, D. L., and Leavitt, N. J., 1993: Mineralogy of the Sanford vesuvianite deposit. Mineralogical Record, v. 24 (5), p. 359-364 |
| King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
| King, Van (n.d.) Personal communcation. |
Berry Ledge, Cornish, York County, Maine, USA