Actinolite from selected localities.
USA | |
| Kinnison, J.E. (1966), The Mission copper deposit, AZ, in S.R. Titley and C.L. Hicks (editors), Geology of the porphyry copper deposits, southwestern North America, Univ. AZ Press, Tucson: 285. |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 101. |
Twin Buttes Mine, Twin Buttes, Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA