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:
Holcomb Valley, Holcomb Valley District, San Bernardino Mts, San Bernardino Co., California, USA


mindat Locality ID: 273146
mindat URL: http://www.mindat.org/loc-273146.html

Tectonic Settings:

Total number of sublocalities beneath "Holcomb Valley, Holcomb Valley District, San Bernardino Mts, San Bernardino Co., California, USA": 28
Total number of bottom-level sublocalities: 27

Number of Child Localities: 18
Child Localities:
Artic Canyon Mine
Bucyrus Placer Mine
H.O.K. Mine
Holcomb Valley Placers
Little Nugget Mine
Mamouth Mine
Metzgar Placer Mine
Mountain Bear Consolidated Mine (Bear Claim; Mountain Bear Placers; Argos Claim)
Olio Mine
Osborne Mine (Mammoth Claim; Olio Claim; San Bernardino Claim)
Pocilio Mine (Pocilio Claim; Alma)
Redbird Lode Prospect (Red Bird)
Resevoir Claim (Resevoir; Extension Of Valley Consolidated Gold Mine; Ext. Of Valley Cons. Gold Mine)
San Bernardino Occurrence
Star Placer Mine
Unnamed Au Occurrence [2]
Unnamed Au Occurrence [4]
Unnamed Au Occurrence [9]

Latitude: 34°18'21"N
Longitude: 116°54'3"W
Decimal Degree (lat, lon): 34.305833333333,-116.90083333333

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 O Si 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
CopperNoneQuartz

2 IMA Minerals at location:
Gold  (*)Quartz  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Gold  (*)CopperAu9173512,173513,173514,173515,173516,173519,173521,173522,17352630554
Quartz  (*)QuartzSiO25173512,173514,173516,173521,17352261156



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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