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:
Boulder Peak, Altoona District, Trinity Mts, Klamath Mts, Trinity Co., California, USA

Oldest recorded age at locality: 465
Youngest recorded age at locality: 465

mindat Locality ID: 241267
mindat URL: http://www.mindat.org/loc-241267.html

Tectonic Settings:

Total number of sublocalities beneath "Boulder Peak, Altoona District, Trinity Mts, Klamath Mts, Trinity Co., California, USA": 27
Total number of bottom-level sublocalities: 25

Number of Child Localities: 23
Child Localities:
Bald Steer Claim (Little Deer 1 And 2 Claims)
Black Crane Claim
Black Crow No. 1 And Black Crow No. 2 Claims
Brown Dog Claim (2)
Charlene Sue Mine (Charlene Sue Occurrence)
Costa Claim (Tiger Lily; Shasta Lily)
Costa Lily Mine (Tiger Lily)
Crow Creek Group (Chapman-Kirby Claims; McConnell-Kirby)
Giant Consolidated Quicksilver Prospect
Lucky Ann Placer Mine
Mumbo Creek Group (Russell Group)
Munko Prospect (Ruby Lily)
Picayune Lake Group
Railroad Lease Mine (Section Two; Southern Pacific Railroad Lease; Railroad Lease; Railroad Mine; Joe Sturdivant; Keno Compagnie Francise; Section 11 Mine; Southern Pacific)
Summit Mine (Pink Crystal; Pink Crystals; Costa Lease)
Thursday No. 1 Placer Mine
Twin Chrome Hill Mine
Unnamed Asbestos Occurrence (13)
Unnamed Au Occurrence (40)
Unnamed Cr Occurrence (18)
Unnamed Cr Occurrence (8)
Unnamed Sb Occurrences (2)
White Cloud Amphibole-Asbestos Deposit

Latitude: 41°9'44"N
Longitude: 122°30'54"W
Decimal Degree (lat, lon): 41.162222222222,-122.515

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: As Au Ca Cr Fe H Mn Ni O Si 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
CopperGarnetNoneSpinelVivianite

5 IMA Minerals at location:
Annabergite  (*)Chromite  (*)Gold  (*)Jacobsite  (*)Uvarovite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Annabergite  (*)VivianiteNi3(AsO4)2·8H2O1181873445
Chromite  (*)SpinelFe2+Cr2O446546513181867,181870,181871,181872,181873,181874,181876,181877,181880,181882,181883,181884,1818863902
Gold  (*)CopperAu2181879,18188530554
Jacobsite  (*)SpinelMn2+Fe3+2O41181883172
Uvarovite  (*)GarnetCa3Cr2(SiO4)34654651181877212



2 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
podchrome-00304465465Ordovician       Cr96844Section 14 Claim, Crow Creek Group (Chapman-Kirby Claims; McConnell-Kirby), Boulder Peak, Altoona District, Trinity Mts, Klamath Mts, Trinity Co., California, USASection 14Moiser et al. (2012) USGSSIR2012_5157 
podchrome-00305465465Ordovician       Cr240604Munko Prospect (Ruby Lily), Boulder Peak, Altoona District, Trinity Mts, Klamath Mts, Trinity Co., California, USAMunko ClaimsMoiser et al. (2012) USGSSIR2012_5157 


SampleSource LocalityReference URL


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