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USA | |
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| Ref.1) Second Geological Survey of Pennsylvania: 1874 Preliminary Report on the Mineralogy of Pennsylvania: F. A. Genth, pg. 44 |
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| Thomlinson, Harold W. (1942). Idiomorphic Cordierite From Safe Harbor, Pennsylvania. American Mineralogist 27:646-648. |
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| Mineral collecting in Pennsylvania - 1965, Lapham, Geyer Pgs. 88-89. Mineralogy of Pennsylvania 1966-1976
Smith, Robert C. II, pgs 242-47 |
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| Hietanen, Anna (1941) Chloritoid from Rawlinsville, Lancaster County, Pennsylvania, American Mineralogist, v. 36, p. 859-868. |
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| Dana, Edward Salisbury (1892) A System of Mineralogy (6th ed.)
Rocks & Minerals: 20: 319.. |
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| Rocks & Min.: 17:353. |
Bart Township, Lancaster County, Pennsylvania, USA