Chalcanthite from selected localities.
USA | |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 161; Creasy, S.C. & G.L. Quick (1955), Copper deposits of part of Helvetia mining district, Pima Co., AZ, USGS Bull. 1027-F: 301-323; Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, AZ, USGS Bull. 582: 91-141. |
| Creasey, S.C. & G.L. Quick (1955), Copper deposits of part of Helvetia mining district, Pima Co., AZ, USGS Bull. 1027-F: 314-315. |
| Collected by and in the collection of Eckhard D. Stuart |
Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 114. | |
Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 60. |
Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USA