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USA | |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 389-390 Bideaux, R.A., et al (1960), Some new occurrences of minerals of Arizona, AZ Geol. Soc. Digest: 3: 53-56. |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 212, 281 Bideaux, R.A., et al (1960), Some new occurrences of minerals of Arizona, AZ Geol. Soc. Digest: 3: 53-56. |
- Bonanza Mining District (Kerber Creek Mining District; Blake Mining District)
| Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing. |
- Goldfield Mining District
| Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology |
| Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology |
| 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: 642. Frondel, C., Pough, F.H. (1944) Two new tellurites of iron: Mackayite and blakeite, with new data on emmonsite and "durdenite". American Mineralogist: 29: 211-225. Rocks & Minerals, Nov. 1999. |
| Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology 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: 642 Frondel, C., Pough, F.H. (1944) Two new tellurites of iron: Mackayite and blakeite, with new data on emmonsite and "durdenite". American Mineralogist: 29: 211-225. |
| 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: 642. Frondel, C., Pough, F.H. (1944) Two new tellurites of iron: Mackayite and blakeite, with new data on emmonsite and "durdenite". American Mineralogist: 29: 211-225. |
| Northrop, Stuart A., LaBruzza, F.A. (1996) Minerals of New Mexico (3rd ed.) University of New Mexico Press, Albuquerque, NM. Walstrom, Robert E. (n.d.) Personal communication. |
Toughnut Mine, Tombstone, Tombstone Mining District, Cochise County, Arizona, USA