Opal from J & L Alunite Mine, Marysvale Mining District, Piute County, Utah, USA
USA | |
| [Opal-A var. Opal-AN] Bullock, Kenneth C. (1981) Minerals and mineral localities of Utah. Bulletin 117. Utah Geological and Mineral Survey |
USA | |
| [Opal-A var. Opal-AN] Bullock, Kenneth C. (1981) Minerals and mineral localities of Utah. Bulletin 117. Utah Geological and Mineral Survey |