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USA | |
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| Williamson, 1932. Book of Amber, p.254. |
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| Percival, James Gates. (1822), Notice of the locality of sulphate of barytes from which a specimen was analysed by Mr. G. T. Bowen
and various other mineral localities in Berlin, Conn., American Journal of Science: s. 1, 5: 42-45. |
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| Hubert, John F., Paul E. Feshbach-Meriney and Michael A. Smith. (1992). The Triassic-Jurassic Hartford Rift Basin, Connecticut and Massachusetts: Evolution, Sandstone Diagenesis, and Hydrocarbon History. AAPG Bulletin: 76(11). |
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| John Burnham |
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| Moritz, Harold (n.d.) Personal Communication. |
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| King, Van (n.d.) Personal communcation. |
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| Jeremy Zolan, Mike Polletta collections |
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| Miller, F. W. (circa 1986), Hydrothermal Quartz and Barite Veins in the Basalt of New Britain, Connecticut. Harvard University Mineralogical Museum Association. |
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| King, Van (n.d.) Personal communcation. |
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| Moritz, Harold (n.d.) Personal Communication. |
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| Moritz, Harold (n.d.) Personal Communication. |
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| Simpson, Howard E. (1966), Bedrock Geologic Map of the New Britain Quadrangle, Connecticut. US Geological Survey Map GQ-494. |
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| Simpson, Howard E. (1966), Bedrock Geologic Map of the New Britain Quadrangle, Connecticut. US Geological Survey Map GQ-494. |
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| Shepard, Charles U. (1837), A Report on the Geological Survey of Connecticut. Hamlen, New Haven. |
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| Silliman, Benjamin. (1819), Localities of Minerals. American Journal of Science: s. 1, 1: 240-1. |
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| Moritz, Harold (n.d.) Personal Communication. |
State Route 9 - Ellis Street and State Route 72 interchanges, New Britain, Hartford County, Connecticut, USA