Chalcedony from Santa Rita Mountains, Arizona, USA
USA | |
| Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 85 |
| Stewart, J.C. (1971) Geology of the Morningstar Mine area, Greaterville Mining district, Pima County, Arizona: Tucson, University of Arizona, M.S. thesis, 79 p. |
| Luetcke, Rolf (n.d.) Personal communication. |
| P Cristofono collection, 2008 |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 349. Olson, H.J. (1966), Oxidation of a sulfide body, Glove mine, Santa Cruz Co., AZ, Econ.Geol.: 61: 731-743 |
| Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 361. |
Bulldozer Hill, Tiptop Mine group, Tiptop Mountain, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA