Palygorskite from Pima County, Arizona, USA
USA | |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 319-320 Thomas, William J., Gibbs, Ronald B. (1983) Famous Mineral Localities: The New Cornelia Mine, Ajo, Arizona. The Mineralogical Record, 14 (5) 283-298 |
| Galbraith, F. W. (1947) Minerals of Arizona (Second Edition, Revised) University of Arizona Bulletin 153. Arizona Bureau of Mines |