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USA | |
| Anthony, John W., Bideaux, Richard A., Bladh, Kenneth W., Nichols, Monte C. - Eds. (2016) Handbook of Mineralogy. https://www.handbookofmineralogy.org/ |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 167 |
| Luetcke, Rolf (n.d.) Personal communication. |
| Raman analyzed at the University of Arizona. |
- Clark Mts (Clark Mountain Range)
- Clark Mountain District (Clark District)
| Anthony, John W., Bideaux, Richard A., Bladh, Kenneth W., Nichols, Monte C. - Eds. (2016) Handbook of Mineralogy. https://www.handbookofmineralogy.org/ |
| Collected by Joe Marty |
| Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology |
- Iron Point Mining District
| Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology |
- Bateman Canyon Mining District
| Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology |
- Birch Creek Mining District
| Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology |
| Rock Currier specimens. XRD by Anthony Kampf, Los Angeles Co. Museum of Natural History showed only variscite. |
- Yerington Mining District
| MarekC (2019) MSSC Fieldtrip Report. Yerington, NV, Sept 28, 2019. http://www.mineralsocal.org/fieldtrip-information-reports/yerington-area-nv-sept-28-2019/ |
| Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology |
Humboldt Mine area, Harshaw Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USA