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
Bertrandite
at
Fourth Of July Mine (Fourth Of July Claims; Ellis Shaft; Billingsley Fluorspar Mines; Sydney Mine), Duncan, Ash Peak District (Twin Peaks District), Greenlee Co., Arizona, USA