Turquoise from
USA | |
| Howard, J. Michael (2007) Bulletin Vol. 23, Mineral Species of Arkansas - A Digest (2nd ed.) Arkansas Geological Commission |
| Rocks & Min.: 56:190. |
USA | |
| Howard, J. Michael (2007) Bulletin Vol. 23, Mineral Species of Arkansas - A Digest (2nd ed.) Arkansas Geological Commission |
| Rocks & Min.: 56:190. |
Mauldin Mountain Quarries, Mauldin Mountain, Montgomery County, Arkansas, USA