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USA | |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 306 Bideaux, R.A., et al (1960), Some new occurrences of minerals of Arizona, AZ Geol. Soc. Digest: 3: 53-56. |
- adjacent to State Route 177
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 109, 191 Wise, William S., Tschernich, Rudy W. (1975) Cowlesite a new Ca-zeolite. American Mineralogist, 60 (11-12) 951-956 |
| Arizona-Sonora Desert Museum collection [http://www.desertmuseumdigitallibrary.org/public/detail.php?id=ASDM03685] |