|
USA | |
| Howard, J. Michael (2007) Bulletin Vol. 23, Mineral Species of Arkansas - A Digest (2nd ed.) Arkansas Geological Commission Howard, J. Michael (1987) Mineral Species of Arkansas - A Digest. Bulletin Vol. 23 (1st ed.) Arkansas Geological Commission |
| Smith, Arthur E. Jr. (1988) Arkansas Mineral Locality Index. Rocks & Minerals, 63 (2) 104-125 doi:10.1080/00357529.1988.11761826 |
| Smith, Arthur E. Jr. (1988) Arkansas Mineral Locality Index. Rocks & Minerals, 63 (2) 104-125 doi:10.1080/00357529.1988.11761826 |
| Jay Ellis Ransom,1974, Gems and Minerals of America |
| Henry Barwood - unpublished (2010) |
| Smith, Arthur E. Jr. (1988) Arkansas Mineral Locality Index. Rocks & Minerals, 63 (2) 104-125 doi:10.1080/00357529.1988.11761826 |
| Smith, Arthur E. Jr. (1988) Arkansas Mineral Locality Index. Rocks & Minerals, 63 (2) 104-125 doi:10.1080/00357529.1988.11761826 |
| Smith, Arthur E. Jr. (1988) Arkansas Mineral Locality Index. Rocks & Minerals, 63 (2) 104-125 doi:10.1080/00357529.1988.11761826 |
| Rocks & Minerals (1989) 64:284-292 |
| Rocks & Minerals, 64, 288-292. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| Sick (1984). Rocks & Min.: 63:113 64:294 |
| Howard, J. Michael (2007) Bulletin Vol. 23, Mineral Species of Arkansas - A Digest (2nd ed.) Arkansas Geological Commission |
| Howard, J. Michael (2007) Bulletin Vol. 23, Mineral Species of Arkansas - A Digest (2nd ed.) Arkansas Geological Commission |
| Howard, J. Michael (2007) Bulletin Vol. 23, Mineral Species of Arkansas - A Digest (2nd ed.) Arkansas Geological Commission |
| Stone, et al (1973). Rocks & Min.:63:120 & 64:296 |
| Rocks & Min.: 63:122 Dana 6: 140 & 692. |
| Smith, Arthur E. Jr. (1988) Arkansas Mineral Locality Index. Rocks & Minerals, 63 (2) 104-125 doi:10.1080/00357529.1988.11761826 |
| Rocks & Min.: 63:123. |
| Rocks & Min.: 63:123. |
| Miser & Purdue(1929). Rocks & Min.:63:123 |
| Rocks & Min.: 63:123. |
| Rocks & Min.: 63: 123. |
| Miser & Purdue(1929). Rocks & Min.:63:123 |