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USA | |
| Rocks&Min. 67:158-168 |
| Havelcová, Martina, Ivana Sýkorová, Miloš René, Jiří Mizera, Miroslav Coubal, Vladimír Machovič, Vladimír Strunga, and Viktor Goliáš. (2022) "Geology and Petrography of Uraniferous Bitumens in Permo-Carboniferous Sediments (Vrchlabí, Czech Republic)" Minerals 12, no. 5: 544. https://doi.org/10.3390/min12050544 Barton, W. & C. E. Goldsmith (1968) New England Beryllium investigations. US Bureau Mines RI 7070 Rocks & Minerals 80:4 pp242-261 |
| Herndon, Jonathan (1993). Black Cap Revisited. Mineral News 10(2):4-5. |
| Rocks & Min 80:245 |
| Rocks and Minerals, (1990) 65:286-296 |
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| Janules, R. (Micromounters of NE Newsletter, 4/ 2005) |
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| Art Smith (2001) Mineral News, 17, #3, 1-7. USGS Bull 1312D |
| Smith, Arthur E. (2005) New Hampshire mineral locality index. Rocks & Minerals, 80 (4) 242-261 doi:10.3200/rmin.80.4.242-261 |
| USGS Bull 1312D |
| Rocks & Minerals 86:168-173. |
Middle Moat Mountain locality, Hale's Location, Carroll County, New Hampshire, USA