Muscovite from Placerville Mining District, El Dorado County, California, USA
USA | |
| [Phengite var. Mariposite] William H. Storms, California State Mining Bureau. 1900. The Mother Lode Region of California. Page 20. |
[Phengite var. Mariposite] (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
Placerville, Placerville Mining District, El Dorado County, California, USA