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| AmMin 12:427-436 (1927) Samuel Robinson (1825) A Catalogue of American Minerals, with their localities. Boston |
| Grew, E.S. and Day, H.W.(1972) Staurolite, kyanite and sillimanite from the Narragansett Basin of Rhode Island: U.S. Geological Survey Professional Paper 800-D, 151-157. |
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| AmMin 12:427-436 |
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| Rocks & Min.: 17:51. |
| Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston |
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| Miller, 1971. RI Minerals & Their Locations |
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| Michael W. Kieron collection |
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| Michael W. Kieron (Personal Observation) |
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| Rocks & Minerals (1986): 61: 286-289 Michael W. Kieron collection |
| Miller, C. E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston Rocks & Min.: 17:51 20:463-464. |
| Grew, E.S. and Day, H.W., (1972). Staurolite, kyanite and sillimanite from the Narragansett Basin of Rhode Island: U.S. Geological Survey Professional Paper 800-D, p. 151-157. |
| Miller, C. E. (1971) Rhode Island Minerals and Their Locations, University of Rhode Island, Kingston |
Valley Falls, Cumberland, Providence County, Rhode Island, USA