Muscovite from selected localities.
USA | |
| [var: Phengite] Chesterman, C.W. (1966b), Mineralogy of the Laytonville quarry, Mendocino County, California, in: Geology of Northern California: California Division Mines & Geol. Bulletin 190: 503, 506; Pemberton, H. Earl (1983), Minerals of California: 426, 503. |
| Mr. Gail E. Dunning. |