Granite pegmatite.
References
Lavoie, Frank (1985): Recent Activity at the Chandler Mine, Raymond, New Hampshire (Rocks and Minerals 60:262,270-273)
Francis, C. A. (1985): Minerals of the Chandler Mine, A Zoned Lithium Rich Pegmatite (Rocks and Minerals, 60:263-264)
USGS Prof Paper 353
Moore, P. B., 2000, Analyses of Primary Phosphates from Pegmatites in Maine and Other Localities, in V. T. King (editor), Mineralogy of Maine. Mining History, Gems, and Geology, Maine Geological Survey, Augusta, Maine, p. 333-336.
Mineral List
39 entries listed. 29 valid minerals. 2 erroneous literature entries.
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