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USA | |
| Ramdohr, Paul (1972) The Opaque Minerals in Stony Meteorites. De Gruyter. doi:10.1515/9783112651025 Buseck, P. & Keil, K. (1966) Meteoritic Rutile: American Mineralogist 51(9&10): 1506-1515. (Sept-Oct 1966). |
| Carlson, S. M., Robinson, G. W., Elder, M. J., Jaszczak, J. A., Bornhorst, T. J. (2007) Greenockite and Associated Uranium-Vanadium Minerals From the Huron River Uranium Prospect, Baraga County, Michigan. Rocks & Minerals: 82(4): 298-308. |
| Heinrich, E. W., Robinson, George Willard (2004) Mineralogy of Michigan (2nd ed.) A.E. Seaman Mineral Museum and Michigan Technological University. 252pp. |
| Dave Maietta |