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USA | |
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| Luetcke, Rolf (n.d.) Personal communication. |
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| Bruce Murphy Collection |
- Trench and Josephine Mine group (Josephine Mines; Trench group of claims; Lunch Cans prospect)
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 344
Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 73.
Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, AZ, USGS Bull. 582: 254 |
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| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 344
Wilson, E.D. & G.M. Butler (1930), Manganese ore deposits in AZ, AZ Bur. Mines Bull. 127: 91-94. |
- Patagonia Mining District
| Muntyan, B. (2012) Amethyst scepters from the Santo Nino Mine, Santa Cruz County, Arizona. Rocks & Minerals, 87, #2, 126-133. |
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| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 344
Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 73.
Schrader, F.C. (1917), The geologic distribution and genesis of the metals in the Santa Rita-Patagonia Mountains, AZ, Econ.Geol.: 12: 237-269
Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, AZ, USGS Bull. 582: 312 |
Hardshell Mine, Hardshell Gulch, Harshaw, Harshaw Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USA