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
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at
Alcalde Mine Group (Alcade; Eclipse; Hidden Treasure; Accidental; Oxford; Diamond; Philadelphia; Stonewall Jackson; Johnson; Gould; Curry; South Curry; Indiana And South Standard Claims), Grass Valley, Grass Valley District, Nevada Co., California, USA