Muscovite from Mineral, Gold-Pyrite Belt, Louisa County, Virginia, USA
USA | |
| [var. Sericite] (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
[var. Sericite] (2005) Mineral Resources Data System (MRDS), US Geological Survey. | |
Dietrich, R. V. (1990) Minerals of Virginia. Virginia Geological Survey. |