|
Canada | |
| Horváth, László, Pfenninger-Horváth, Elsa, Spertini, Francesco (2013) The Jeffrey mine, Asbestos, Québec, Canada. The Mineralogical Record, 44 (4) 375-417 |
|
USA | |
| Weber, Marcelle H., Sullivan, Earle C. (1995) Connecticut Mineral Locality Index. Rocks & Minerals, 70 (6) 396-409 doi:10.1080/00357529.1995.11761569 Tschernich, Rudy W. (1992) Zeolites of the World. Geoscience Press, Inc., Phoenix, Arizona. 567pp. 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. |
| Cook, Robert B. (1978) Minerals of Georgia: Their Properties and Occurrences. Bulletin 92. State of Georgia Department of Natural Resources |
| Cook, Robert B. (1978) Minerals of Georgia: Their Properties and Occurrences. Bulletin 92. State of Georgia Department of Natural Resources |
| Ostrander, C. W. & W. E. Price (1940) Minerals of Maryland: Natural History Society of Maryland , 92 p. |
| Jonathan Harris |
| Parker, F. (2014) Fred Parker Updates his 2005 Hunting Hill Mineralogical Record Article: Mineral Bliss website, http://mineralbliss.blogspot.com/2014/01/fred-parker-updates-his-2005-hunting.html. |
| American Mineralogist (1925): 10: 77 |
| Rocks & Min. Vol. 71, (1996) |
Churchville Quarry, Harford County, Maryland, USA