Wurtzite from Virginia, USA
USA | |
| Dietrich, R. V. (1990) Minerals of Virginia. Virginia Geological Survey. D. Allen Penick, Jr. (1987) Virginia Mineral Locality Index. Virginia Minerals:Virginia Division of Mineral Resources. 33-1:1-10 |
| Dietrich, R. V. (1990) Minerals of Virginia. Virginia Geological Survey. |