K Feldspar from selected localities.
USA | |
| Weber, F.H., Jr. (1963a) Mines and mineral resources of San Diego County, California. California Division of Mines and Geology County Report 3, 309 pp.; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 364. |
Weber, F.H., Jr. (1963a), Mines and mineral resources of San Diego County, California; California Division of Mines and Geology, County Report No. 3, 309 pp.: No. 56: 83; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 364. |