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USA | |
| Hopkins, Oliver B. (1914) A Report on the Asbestos, Talc and Soapstone Deposits of Georgia. Bulletin 29. Geological Survey of Georgia |
| Ransom, Jay Ellis (1974) Gems and Minerals of America - A Guide to Rock Collecting. Harper & Row. |
| 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 |
| 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. (Colony, 1921) (Januzzi, 1966, 1989) (Trainer, 1938). |
| 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 |
| 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 |
| 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 Whitlock, H P (1903) List of New York Mineral localities. New York State Museum. |
| 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 |
| U.S Bureau of Mines/Spatial Data from the Minerals System/Mineral Industry Location System(Mas/Mils)CD-Rom,Sep,1995 |
| Dana 6:1075. |
| Dana 6:515,637 & 1075. |
| Wilson, W.F., McKenzie, B.J. (1978) Mineral Collecting Sites in North Carolina. Information Circular 24. North Carolina Division of Mineral Resources |
| Ref.: Dana 6:499, 560 & 1077. |
| Dana 6:1077. |
| Wilson, W.F., McKenzie, B.J. (1978) Mineral Collecting Sites in North Carolina. Information Circular 24. North Carolina Division of Mineral Resources |
| U.S Bureau of Mines/Spatial Data from the Minerals System/Mineral Industry Location System(Mas/Mils)CD-Rom,Sep,1995 |
| Genth,F.A and Kerr,W.C,1881,Mineral and Mineral Localities of North Carolina,Geologic Survey |
| Dana 6: 1080. |
| Mineralogy of Pennsylvania-1922 Samuel S. Gordon, pg. 204 |
| Cannon, Bart (1975) Minerals of Washington. Cordilleran, Mercer Island, WA. |
| Cannon, Bart (1975) Minerals of Washington. Cordilleran, Mercer Island, WA. |
| Cannon, Bart (1975) Minerals of Washington. Cordilleran, Mercer Island, WA. |
| Cannon, Bart (1975) Minerals of Washington. Cordilleran, Mercer Island, WA. |
| Cannon, Bart (1975) Minerals of Washington. Cordilleran, Mercer Island, WA. |