Serpentine Subgroup from selected localities.
USA | |
| Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 346; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 148. |
| Goodwin, Joseph Grant (1958), Mines and mineral resources of Tulare County, California: California Journal of Mines and Geology (Report 54): 54(3): 344; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 424. |