Variscite from Arkansas, USA
USA | |
| Arthur E. Smith (2008) Mineral News, 24, #8, 7-8. |
Rocks & Minerals (2010) 85:346-350 | |
Rocks & Min.:64:296. | |
Arthur E. Smith (2008) Mineral News, 24, #8, 7. | |
| Arthur E. Smith (2008) Mineral News, 24, #8, 8. |
| Owens, Don R. (1995) Minerals of the Wilson Springs Vanadium Mines, Potash Sulphur Springs, Arkansas. Rocks & Minerals: 70(3): 154-170. Howard, J. Michael |
| Rocks & Min.: 56:190. |
Rocks & Min.: 63:112. | |
| Sick (1984). Rocks & Min.: 63:113 64:294 |
| Rocks & Min.:63:118. |
Avant, Garland County, Arkansas, USA