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USA | |
| Erd, Richard C., Greenberg, Seymour S. (1960) Minerals of Indiana. Bulletin 18. Indiana Geological Survey |
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| Goldstein, Alan (2006) Kentucky Mineral: Locality Index. Rocks & Minerals, 81 (6) 420-440 doi:10.3200/rmin.81.6.420-440 |
| Goldstein, Alan (2006) Kentucky Mineral: Locality Index. Rocks & Minerals, 81 (6) 420-440 doi:10.3200/rmin.81.6.420-440 |
| Collecting on site |
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| Goldstein, Alan (2006) Kentucky Mineral: Locality Index. Rocks & Minerals, 81 (6) 420-440 doi:10.3200/rmin.81.6.420-440 |
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| Goldstein, Alan (2006) Kentucky Mineral: Locality Index. Rocks & Minerals, 81 (6) 420-440 doi:10.3200/rmin.81.6.420-440 |
| Goldstein, Alan (2006) Kentucky Mineral: Locality Index. Rocks & Minerals, 81 (6) 420-440 doi:10.3200/rmin.81.6.420-440 |
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| Robinson, George W., Chamberlain, Steven C. (2007) Gazetteer of Major New York State Mineral Localities. Rocks & Minerals, 82 (6) 472-483 doi:10.3200/rmin.82.6.474-483 Robinson, George W., Chamberlain, Steven C. (2007) Gazetteer of Major New York State Mineral Localities. Rocks & Minerals, 82 (6) 472-483 doi:10.3200/rmin.82.6.474-483 |
- Balmat-Edwards Zinc Mining District
| Chamberlain, S.C., Lupulescu, M.V., Bailey, D.G. (2019) Mineralogy of Chub Lake-Type Hematite Deposits in St. Lawrence County, NY. Minerals, 9(9), 567. |
| Carlson, E.H. (2002) Ohio mineral locality index, part 2 – concretions, and miscellaneous occurrences. Rocks and Minerals: 77(5): 312. |
| www.rockmanjoe.com/Georgetown.html. |
| Carlson, Ernest H. (2015) Minerals of Ohio. Bulletin 69 (2nd ed.) Ohio Division of Geological Survey |
| Carlson, Ernest H. (2015) Minerals of Ohio. Bulletin 69 (2nd ed.) Ohio Division of Geological Survey |
| Carlson, Ernest H., Namjesnik-Dejanovic, Ksenija, Schwin, Paul (2009) Mineralogy and Paragenesis of Large Dolostone Septaria: In the Late Devonian Huron Shale, North-Central Ohio. Rocks & Minerals, 84 (2) 150-159 doi:10.3200/rmin.84.2.150-159 Carlson, Ernest H., Namjesnik-Dejanovic, Ksenija, Schwin, Paul (2009) Mineralogy and Paragenesis of Large Dolostone Septaria: In the Late Devonian Huron Shale, North-Central Ohio. Rocks & Minerals, 84 (2) 150-159 doi:10.3200/rmin.84.2.150-159 |
| Carlson, Ernest H., Namjesnik-Dejanovic, Ksenija, Schwin, Paul (2009) Mineralogy and Paragenesis of Large Dolostone Septaria: In the Late Devonian Huron Shale, North-Central Ohio. Rocks & Minerals, 84 (2) 150-159 doi:10.3200/rmin.84.2.150-159 |
| Carlson, Ernest H. (1991) Minerals of Ohio. Bulletin 69 (1st ed.) Ohio Division of Geological Survey |
| Carlson, Ernest H. (2015) Minerals of Ohio. Bulletin 69 (2nd ed.) Ohio Division of Geological Survey |
| Carlson, Ernest H. (1991) Minerals of Ohio. Bulletin 69 (1st ed.) Ohio Division of Geological Survey |
State Route 37 roadcut, Harrodsburg, Monroe County, Indiana, USA