Anhydrite from Pima Mining District (Olive Mining District; Mineral Hill Mining District; Twin Buttes Mining District), Sierrita Mountains, Pima Co., Arizona, USA
USA | |
| Freeport-McMoRan |
Singer, D.A., Berger, V.I., and Moring, B.C. (2008): US Geological Survey Open-File Report 2008-1155. | |
| Personal knowledge and consultations with knowledgeable professionals |
ASARCO site geologist. | |
| Freeport-McMoRan |
Sierrita Mine, Batamote Hills, Pima Mining District, Sierrita Mountains, Pima Co., Arizona, USA