Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org



The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.


Locality Name:
Unnamed Au Occurrence [53], Auburn, Ophir District (Auburn District; Duncan Hill District), Placer Co., California, USA


mindat Locality ID: 85892
mindat URL: http://www.mindat.org/loc-85892.html

Tectonic Settings:

Total number of sublocalities beneath "Unnamed Au Occurrence [53], Auburn, Ophir District (Auburn District; Duncan Hill District), Placer Co., California, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 38°54'34"N
Longitude: 121°4'29"W
Decimal Degree (lat, lon): 38.909444444444,-121.07472222222

AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
This mineral's age has not yet been recorded.

No IMA Minerals occur at this locality according to mindat

No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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