| | Description | |
| Comments: | Occurs as coarse, perthitic oligoclase in pegmatite dikes. | | Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 330. | | Data | |
| Mineral Data: | Click here to view Albite-Anorthite Series data | | Locality Data: | Click here to view Area West of Helmet Peak, Pima District (Olive District; Mineral Hill District; Twin Buttes District), Sierrita Mts, Pima Co., Arizona, USA |
|