Oligoclase from Pima County, Arizona, USA
USA | |
| Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 110. |
| Williams, S.A. (1960), A new occurrence of allanite in the Quijotoa Mountains, Pima Co., AZ, AZ Geol. Soc. Digest: 3: 47. |