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| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
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| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
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| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
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| [var. Picrolite] Western Massachusetts Geologic Resource Inventory, 3rd Ed., Alan R. Plante (Privately Published), 1994 |
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| [var. Picrolite] Western Massachusetts Geologic Resource Inventory, 3rd Ed., Alan R. Plante (Privately Published), 1994 |
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| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
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| pubs.usgs.gov (n.d.) http://pubs.usgs.gov/of/2005/1189/downloads/asbestos_sites.xls. |
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| Western Massachusetts Geologic Resource Inventory, 3rd Ed., Alan R. Plante (Privately Published), 1994 |
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| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
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| Bulletin of the Essex Institute, VOLUME XVI 1884 |
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| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
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| Smithsonian Institution annual report, 1886 |
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| Alfred Lane (1890) Proceedings of the Boston Society of Natural History, Volume 24 pp 91-95 |
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| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
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| Sears, John Henry (1905): The Physical Geography, Geology, Mineralogy and Paleontology of Essex County
Geoffrey Small collection, 2012 |
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| Sears, John Henry (1905): The Physical Geography, Geology, Mineralogy and Paleontology of Essex County |
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| Chute, Newton E. (1969) The talc, soapstone, and asbestos deposits of Massachusetts
USGS Open-File Report 69-39, p. 8-10. |
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| (1917) Useful minerals of the United States. Bulletin Vol. 624. US Geological Survey doi:10.3133/b624 |
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| Dana, James D. (1868) A System of Mineralogy (5th ed.) p.882 |
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| Clarke, F. W., (1904): Analysis of Rocks, Laboratory of the United States Geological Survey, 1880-1903. |
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| Dana 4:284 (1854) |
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| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
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| Chute, Newton E. (1969) The talc, soapstone, and asbestos deposits of Massachusetts
USGS Open-File Report 69-39, p. 8-10. |
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| Nash, Alanson (1827): Notices of the Lead Mines and Veins of Hampshire County, Mass. and of the Geology and Mineralogy of that Region (American Journal of Science and Arts vol. 7, pp. 238-270.) |
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| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
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| Hitchcock, E. (1833) Report on the Geology, Mineralogy, Botany, and Zoology of Massachusetts. J.S.& C. Adams, Amherst, pp. 307-311. |
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| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
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| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
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| Palache, C. and Pinger, A. W. (1923). The scapolite deposit of Bolton, Massachusetts (American Mineralogist 8:153-157) |
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| Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc. |
Devil's Den, Newbury, Essex County, Massachusetts, USA