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USA | |
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| www.koeln.netsurf.de (2001) http://www.koeln.netsurf.de/~w.steffens/magcov.htm |
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| B. H, Scott Smith & EMW Skinner (1984) A new look at the Prairie Creek, Arkansas 3rd International Kimberlite Conference pp 255-283
American Mineralogist, Volume 85, pages 420–429, 2000 |
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| Dummett, H. T. (1987). Geology and petrography of the Twin Knobs# 1 lamproite, Pike County, Arkansas. Mantle Metasomatism and Alkaline Magmatism, 215, 205. |
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| Rocks and Minerals, (1989) 64:314-322
Smith, Arthur E. Jr. (1988) Arkansas Mineral Locality Index. Rocks & Minerals, 63 (2) 104-125 doi:10.1080/00357529.1988.11761826 |
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| Henry Barwood - unpublished (2010) |
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| Salpas, P. A., Taylor, L. A., and Shervais, J. W., 1986. The Blue Ball, Arkansas Kimberlite: Mineralogy, Petrology, and Geochemistry. Journal of Geology (94) 891-901. |
Magnet Cove, Hot Spring County, Arkansas, USA