Pyromorphite from
USA | |
| Espenshade,G.H (1947) Tungsten Deposits of Vance County North Carolina, and Mecklenburg County, Virginia U.S Geological Survey Bulletin 948-A |
| Dietrich, R. V. (1990) Minerals of Virginia. Virginia Geological Survey. Am Min 53:2110 |
| Kearns, L.E., Martin, B.S. (2000) The Morefield Pegmatite, Amelia, Virginia. Mineral Update. Virginia Minerals: 46(2): 9-13. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
Morefield Mine, Winterham, Amelia County, Virginia, USA