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:
Red Hill, Junction City, Junction City District, Klamath Mts, Trinity Co., California, USA


mindat Locality ID: 241711
mindat URL: http://www.mindat.org/loc-241711.html

Tectonic Settings:

Total number of sublocalities beneath "Red Hill, Junction City, Junction City District, Klamath Mts, Trinity Co., California, USA": 9
Total number of bottom-level sublocalities: 9

Number of Child Localities: 9
Child Localities:
Goldfield Consolidated Occurrence (Red Hill Occurrence)
Hansen Placer Mine (Happy Jack)
Junction City Dredge Mine (Bergin Placer; Laws; Eldorado)
Lorenze Occurrence
Mammoth Placer Mine
Old Eagle Mine
Segalia Placer Mine (Segalia Gold)
Valdor Dredge Mine (Trinity Center; Hertevant Mine)
Yellow Suprise Mine

Latitude: 40°44'57"N
Longitude: 123°5'33"W
Decimal Degree (lat, lon): 40.749166666667,-123.0925

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.

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Au Cu Ir O Pt Si 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
CopperNoneQuartz

5 IMA Minerals at location:
Copper  (*)Gold  (*)Iridium  (*)Platinum  (*)Quartz  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Copper  (*)CopperCu11814033846
Gold  (*)CopperAu6181401,181402,181404,181406,181407,18140830554
Iridium  (*)CopperIr1181407162
Platinum  (*)CopperPt3181402,181405,181407485
Quartz  (*)QuartzSiO2118140861156



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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