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USA | |
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| Stuart Herring Collection |
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| Gordon, 1922. Mineralogy of Pennsylvania |
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| Davis, Harold. "New Pennsylvania Caves," Speleothems, Volume 8, No. 4, November, 1960. |
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| Dana 6:1067
Dana 7:II:255
Rocks & Min.: 17:340.. |
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| Ref.: Gordon, Samuel G. (1922), Mineralogy of Pennsylvania: 153. |
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| Gordon: Mineralogy of Pennsylvania, 1922 p. 159 |
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| Gordon: Mineralogy of Pennysylvania, 1922 p. 159 |
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| Ron Slotto "Mines and Minerals of Chester County, Pennsylvania" (2009) pg. 37-38
Ron Slotto (2009) Mines and Minerals of Chester County, Pennsylvania 37-38
Gordon "Mineral Localities of Pennsylvania" (1922) pg. 169 |
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| Dana 6: 1067. |
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| Sloto, R.A. (1989). Famous mineral localities: The Phoenixville, Lead silver mines, Chester County, Pennsylvania. The Mineralogical Record, 20(5), 369-386. |
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| Sloto, R.A. (1989). Famous mineral localities: The Phoenixville, Lead silver mines, Chester County, Pennsylvania. The Mineralogical Record, 20(5), 369-386. |
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| Mineralogical Record, 25(2),pp:105-120. |
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| Jefferis, W.W. (1893) Localities of Chester County, Proceedings, Academy of Natural Science of Philadelphia, 34: 187. |
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| The Mineralogy of Pennsylvania
Samual Gordon, pg. 182 |
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| Field trip local for and mineral identification by the Nittany Mineralogical Society |
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| Rocks & Min.: 24:362. |
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| Rocks & Min.: 58: 265-266. |
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| Robert C. Smith II (1978) The Mineralogy of Pennsylvania 1966-1975. Friends of Mineralogy, Pennsylvania Chapter, pp. 275-282. |
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| Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania |
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| Personally Collected 4/12/2008, Mark J. Sigouin, Pennsylvania Licenced Professional Geologist |
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| Palache, Charles, Berman, Harry, Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Ect. John Wiley and Sons, New York.
Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania |
- Cornwall Borough (Cornwall)
| Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania |
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| Rocks & Minerals (1955) 30:394
Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania |
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| Rocks & Min.: 6:26
10:33-36, 58. |
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| Dana 6: 1069. |
- Lower Providence Township
| Sloto, Ronald A. (2019) The Mines and Minerals of Montgomery County, Pennsylvania (analyzed by author, SEM-EDS) As (uncommon) radiating acicular crystals. |
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| Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania |
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| Dana 6:1069. |
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| Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania |
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| Jat Thompson Collection |
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| Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania |
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| www.jonesgeo.com (2011) http://www.jonesgeo.com/codorus.htm |
Wood's Chrome Mine, Texas, Little Britain Township, Lancaster County, Pennsylvania, USA