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USA | |
| King, V. (ed.), 2009, Maine feldspar, Families, and Feuds |
| Martins da Pedra collection |
| King, Van (n.d.) Personal communcation. |
| King, Van (n.d.) Personal communcation. |
| King, V. T., 2006, Minerals of Halls Ridge and Plumbago-Puzzle Mountain, Newry, ... Maine, Mineral News, v. 22(6): p. 1-3. |
| King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey. |
Tiger Bill Quarries, Greenwood, Oxford County, Maine, USA