Opal-Agate from Texas, USA
USA | |
| www.austingemandmineral.org |
| www.wma-minelife.com/uranium/papers/karnes.htm Cherepon, Alan J., Minerals of the Karnes Uranium District - The Franklin of Texas. |
USA | |
| www.austingemandmineral.org |
| www.wma-minelife.com/uranium/papers/karnes.htm Cherepon, Alan J., Minerals of the Karnes Uranium District - The Franklin of Texas. |