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
Quartz
at
Pratt & Dubugue Consolidated Quartz Mine (Pratt And Dubuque; Brickyard Lot; Dubuque; Pratt), Grass Valley, Grass Valley District, Nevada Co., California, USA