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| Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM. Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 385, 402 |
| Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM. |
| Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM. |
| James M. Barker and George S. Austin, (1993) Economic geology of the Carlsbad potash district, New Mexico , pp. 283-291 in: Carlsbad Region (New Mexico and West Texas), Love, D. W. Hawley, J. W. Kues, B. S. Austin, G. S. Lucas, S. G. [eds.], New Mexico Geological Society 44th Annual Fall Field Conference Guidebook, 357 p. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Philip, Simmons (2013) The Carlsbad Potash Basin, Carlsbad, New Mexico, in January-February 2013. The Mineralogical Record, 44 (1) 13-49 Keith Christy specimens |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. King, Van (n.d.) Personal communcation. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Betts, John (n.d.) John Betts website listing. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. dan weinrich |
| Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM. |
| 2008 New Mexico Mineral Symposium abstracts |
| Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM. |
| Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. Lindgren, Waldemar, Graton, L.C., Gordon, C.H. (1910) The ore deposits of New Mexico. Professional Paper 68. US Geological Survey doi:10.3133/pp68 |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM. |
PCA Mine, Carlsbad Potash Mining District, Eddy County, New Mexico, USA