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 East Extension Shurtleff; East Extension Conrad And New Hope Mine (E. Ext. Shurtleff / E. Ext. Shurtleff; E. Ext. Conrad And New Hope), Duncan Hill, Auburn, Ophir District (Auburn District; Duncan Hill District), Placer Co., California, USA