Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by
mindat.org
There are no ages for
Opal
at
Nowak Mine (Last Chance Opal Mine; Nowak Fire Opal Mine; Cowden Mine), Silica Gem Claims, Last Chance Canyon, El Paso Mountains District, El Paso Mts, Kern Co., California, USA