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USA | |
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| Rocks & Min.: 20:518. |
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| Januzzi, Ronald (1959) The Minerals of Western Connecticut and Southeastern New York State.. The Mineralogical Press, Danbury, Connecticut.
Manchester, James G. (1931) The Minerals of New York City and its Environs. Bulletin of the New York Mineralogical Club Vol. 3 (1) New York Mineralogical Club
Schairer, John F. (1931): Minerals of Connecticut. State Geological and Natural History Survey of Connecticut Bulletin 51. |
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| Weber, Marcelle H., Sullivan, Earle C. (1995) Connecticut Mineral Locality Index. Rocks & Minerals, 70 (6) 396-409 doi:10.1080/00357529.1995.11761569
Januzzi, Ron E., Seaman, David M. (1976) Mineral Localities of Connecticut and Southeastern New York State and Pegmatite Minerals of the World. The Mineralogical Press, Danbury, Connecticut, USA. |
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| Weber, Marcelle H., Sullivan, Earle C. (1995) Connecticut Mineral Locality Index. Rocks & Minerals, 70 (6) 396-409 doi:10.1080/00357529.1995.11761569
Januzzi, Ronald. E. (1994) Mineral Data Book - Western Connecticut and Environs. Mineralogical Press, Danbury, Connecticut, USA.
Januzzi, Ron E., Seaman, David M. (1976) Mineral Localities of Connecticut and Southeastern New York State and Pegmatite Minerals of the World. The Mineralogical Press, Danbury, Connecticut, USA. |
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| Januzzi, Ron E., Seaman, David M. (1976) Mineral Localities of Connecticut and Southeastern New York State and Pegmatite Minerals of the World. The Mineralogical Press, Danbury, Connecticut, USA. |
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| Manchester, James G. (1931) The Minerals of New York City and its Environs. Bulletin of the New York Mineralogical Club Vol. 3 (1) New York Mineralogical Club |
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| Januzzi, Ron E., Seaman, David M. (1976) Mineral Localities of Connecticut and Southeastern New York State and Pegmatite Minerals of the World. The Mineralogical Press, Danbury, Connecticut, USA. |
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| Januzzi, Ronald. E. (1994) Mineral Data Book - Western Connecticut and Environs. Mineralogical Press, Danbury, Connecticut, USA. |
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| Emerson, B. K. (1902), Note on Corundum and a Graphitic Essonite, from Barkhamsted, Connecticut. American Journal of Science: s. 4, 14: 234-6. |
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| Gates, Robert. (1961) The Bedrock Geology of the Cornwall Quadrangle. State Geological and Natural History Survey of Connecticut. Quadrangle Report No. 11. |
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| Robinson, Samuel. (1825): A Catalogue of American Minerals, With Their Localities
Brace, John P. (1819), Observations on the Minerals Connected with the Gneiss Range of Litchfield County. American Journal of Science: s.1, 1: 351-355.
Including All Which Are Known to Exist in the United States and British Provinces, And Having the Towns, Counties, and Districts in Each State and Province Arranged Alphabetically. With an Appendix, Containing Additional Localities and a Tabular View. Cummings, Hilliard, & Co., Boston. |
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| Samuel Robinson (1825) A Catalogue of American Minerals, with their localities. Boston |
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| Samuel Robinson (1825) A Catalogue of American Minerals, with their localities. Boston |
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| Yedlin, Neal (1964) The Micromounter. Rocks & Minerals, 39 (5) 258-262 doi:10.1080/00357529.1964.11766001 |
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| Januzzi, Ron E., Seaman, David M. (1976) Mineral Localities of Connecticut and Southeastern New York State and Pegmatite Minerals of the World. The Mineralogical Press, Danbury, Connecticut, USA. |
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| Graphite observed by Mike Polletta. Harold Moritz collection. |
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| Yedlin, Neal (1964) The Micromounter. Rocks & Minerals, 39 (5) 258-262 doi:10.1080/00357529.1964.11766001 |
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| Rowan M. Lytle Collection |
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| Rowan M. Lytle Collection |
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| Davis, James W. (1901): The Minerals of Haddam, Conn. Mineral Collector, v. 8, no. 4, pp. 50-54, and no. 5, pp. 65-70. |
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| Weber, Marcelle H., Sullivan, Earle C. (1995) Connecticut Mineral Locality Index. Rocks & Minerals, 70 (6) 396-409 doi:10.1080/00357529.1995.11761569
Scovil, Jeffrey A. (1992) Famous Mineral Localities: The Gillette Quarry, Haddam Neck, Connecticut. The Mineralogical Record, 23 (1) 19-80
Schooner, Richard. (1958) THE MINERALOGY OF THE PORTLAND-EAST HAMPTON-MIDDLETOWN-HADDAM AREA IN CONNECTICUT (With a few notes on Glastonbury and Marlborough) |
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| Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut. |
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| Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough). Published by Richard Schooner
Ralph Lieser of Pappyβs Beryl Shop, East Hampton
and Howard Pate of Fluorescent House, Branford, Connecticut. |
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| Moritz, Harold (n.d.) Personal Communication. |
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| Robinson (1825) A Catalogue of American Minerals, with their localities. Boston |
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| Samuel Robinson (1825) A Catalogue of American Minerals, with their localities. Boston |
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| Barker. (1962): Cordierite Garnet Gneiss and Associated Microcline-Rich Pegmatite at Sturbridge, Massachusetts and Union, Connecticut. AmMin 47 |
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| Ransom, Jay Ellis (1974) Gems and Minerals of America - A Guide to Rock Collecting. Harper & Row. |
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| Yale Peabody Museum collection |
Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA