Located near the village of North Groton, on the southeast flank of Bald Mountain. Mined for mica beginning in 1863; later for beryl, feldspar, and quartz. The mine was known as the Hartford Mine until 1888, when it was purchased by the Palermo Mining Company of Schenectady, New York. Since 1973 it has been operated almost solely for mineral specimens, including many rare phosphate species.
Fuller (1898) reported on a pocket at the mine which was said to be ten feet in diameter. A quartz crystal, three feet in diameter, was taken from the roof of the pocket, according to the mine superintendent at the time.
185 entries listed. 150 valid minerals. 10 type localities (valid minerals). 6 erroneous literature entries.
Wadsworth, Marshman Edward (1880): Report on the Mica Deposits of the Hartford Mica Mining Company, Groton, Grafton County, New Hampshire (Boston: priv. pub.)
Fuller, Myron L. (1898): Crushed Quartz and Its Source (
Stone, an Illustrated Magazine vol. 18, p. 3.)
Sterrett, D. (1914). Some deposits of Mica in the United States (USGS Bulletin 580-F), pp. 72-74.
Sterrett, D. (1923): Mica deposits of the United States. (USGS Bulletin 740).
Berman, Harry (1927):
Graftonite from a new locality in New Hampshire (
American Mineralogist 12:170).
Verrow, H.J. (1941): "Pegmatite minerals of the Palermo quarry, North Groton, New Hampshire",
Rocks & Minerals 16:208-211.
Frondel, C. and Lindberg, M. (1948): Second occurrence of
brazilianite (
American Mineralogist 33:135–141).
Wolfe, C. W. (1949):
Ludlamite from the Palermo mine, North Groton, New Hampshire (
American Mineralogist 34:94).
Frondel, Clifford (1949):
Wolfeite,
xanthoxenite and
whitlockite from the Palermo Mine, New Hampshire (
American Mineralogist 34:692).
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 835, 842-843, 855, 868, 876, 938, 953, 960, 977.
Mrose, M. E. (1953):
Palermoite and
goyazite, two strontium minerals from the Palermo Mine, North Groton, New Hampshire (
American Mineralogist 38:354).
Cameron E.N.; Larabee, D.M.; McNair, A.H.; Page. J.J.; Stewart, G.W.; Shainin, V.E. (1954): Pegmatite investigations 1942-1945, New England. (USGS Prof Paper 255:1-352.)
Frondel, Clifford (1956): Systematic Mineralogy of Uranium and Thorium, USGS Bulletin 1064, pp. 400.
Frondel, Clifford and Ito, Jun (1965): Composition of
palermoite (
American Mineralogist 50:777).
Gregory, G. E. (1965): Palermo No. 1 Mine (
Gems and Minerals, Dec. 1965, 22-23.)
Moore, P.B. and Lund, D. H. (1973):
Bjarebyite...a new species (
Mineralogical Record 4:282-285).
Moore, P,B., Kampf, A.R., and Irving, A.J.(1974): "
Whitmoreite, a new species: its description and atomic arrangement",
American Mineralogist 59:900-905.
Thompson, W. (1974): The Palermo mine, New Hampshire".
Mineralogical Record 5:274-279.
Calvo, C., and R. Gopal. (1975): The Crystal Structure of
Whitlockite from the Palermo Quarry. (
American Mineralogist 60:120-133).
Moore, P. B., Irving, A. J., and Kampf, A. R. (1975):
Foggite,
Goedkenite, and
Samuelsonite: Three new species from the Palermo No. 1 pegmatite, North Groton, New Hampshire. (
American Mineralogist 60:957-964).
Francis, C. (1976): The Palermo #1 Pegmatite, North Groton, Grafton County, New Hampshire (
Mineralogical Record 7:102).
Moore, P. B. and A. R. Kampf (1977):
Schoonerite, a new zinc-manganese-iron phosphate mineral (
American Mineralogist 62:246-249).
Segeler, C.G., Ulrich, W., Kampf, A.R., and Whitmore, R.W. (1981): "Phosphate minerals of the Palermo No. 1 Pegmatite",
Rocks & Minerals 56:196-214.
Pitman, L.C. (1989)
Laueite from Hagendorf-Süd and the Palermo mine.
Mineralogical Record 20:363–364.
Dallaire, D. A. and Whitmore, R. W. (1990): Mines and minerals of North Groton, New Hampshire (
Rocks & Minerals 65:350-360).
Korzeb, Stanley L. (1990):
Pseudomalachite: New Find at the Palermo No. 1 Pegmatite, New Hampshire (
Rocks & Minerals 65:348-349).
Barker, Pat Berry (1995): Palermo Mine's Vanishing Bubbles. (
Mineral News 11(5):1-2).
Foord, Eugene E., Korzeb, Stanley L., Lichte, Frederick, E., and Fitzpatrick, Joan J. (1997). "Additional Studies on Mixed Uranyl Oxide-Hydroxide Hydrate Alteration Products of
Uraninite from the Palermo and Ruggles Granitic Pegmatites, Grafton County, New Hampshire", Canadian Mineralogist, v. 35, p. 145-151.
Korzeb, Stanley L.; Foord, Eugene E. and Lichte, Frederick E. (1997):The chemical evolution and paragenesis of uranium minerals from the Ruggles and Palermo granitic pegmatites, New Hampshire (
Canadian Mineralogist 35:135-144).
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.
King, V. (2002):
Palermoite from the Palermo No.1 pegmatite, Groton, Grafton county, New Hampshire.
Rocks & Minerals 77:173 (Crystallography); 77:240-241 (Paragenesis).
Whitmore, R.W. and Lawrence, R.C., Jr. (2004): The Pegmatite Mines Known As Palermo (Friends of Palermo Mines, North Groton, New Hampshire).
Nizamoff, James W., et al. (2007). Parascholzite, keckite, gormanite, and other previously unreported secondary species and new data on kulanite and phosphophyllite from the Palermo No. 1 Mine, North Groton, New Hampshire,
Rocks & Minerals 82:145 (abstract, Rochester Mineralogical Symposium).
McManus, Catherine E.; McMillan, Nancy J.; Harmon, Russell S.; Whitmore, Robert; De Lucia, Frank C. Jr.; and Miziolek, Andrzej W. (2008): Use of laser induced breakdown spectroscopy in the determination of gem provenance: beryls (
Applied Optics 47: G72-G79).
Hughes, John M.; Jolliff, Bradley L.; and Rakovan, John (2008): The crystal chemistry of
whitlockite and
merrillite and the dehydrogenation of whitlockite to merrillite (
American Mineralogist 93:1300-1305).
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