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:
Lakeshore, Fresno Co., California, USA

Oldest recorded age at locality: 180.3
Youngest recorded age at locality: 9.7

mindat Locality ID: 218934
mindat URL: http://www.mindat.org/loc-218934.html

Tectonic Settings:

Total number of sublocalities beneath "Lakeshore, Fresno Co., California, USA": 4
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
Chinese Peak
Lucky Blue Tungsten Mines
Prior Lake Claim
Unnamed Skarn Occurrence [1]

Latitude: 37°16'52"N
Longitude: 119°9'38"W
Decimal Degree (lat, lon): 37.281111111111,-119.16055555556

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: Ag Al As B Bi C Ca Co F Fe H Mg Na O Pb S Sb Si Ti W 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AmphiboleBruciteCalciteClayClinozoisiteDiasporeEpidoteHumiteLöllingiteLillianite
LudwigiteMicaNoneOlivinePyroxeneScheeliteSpinelTitaniteVesuvianite

22 IMA Minerals at location:
Augite  (*)Brucite  (*)Calcite  (*)Chestermanite  (*)Clinohumite  (*)
Clintonite  (*)Diaspore  (*)Diopside  (*)Epidote  (*)Fluoborite  (*)
Forsterite  (*)Lillianite  (*)Löllingite  (*)Ludwigite  (*)Magnetite  (*)
Pargasite  (*)Safflorite  (*)Scheelite  (*)Spinel  (*)Titanite  (*)
Vesuvianite  (*)Wightmanite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Augite  (*)Pyroxene(Ca,Mg,Fe)2Si2O6180.39.711559052060
Brucite  (*)BruciteMg(OH)21155908462
Calcite  (*)CalciteCa(CO3)115590827770
Chestermanite  (*)NoneMg2(Fe3+,Mg,Al,Sb5+)O2(BO3)11559081
Clinohumite  (*)HumiteMg9(SiO4)4F21155908236
Clintonite  (*)Mica ClayCaAlMg2(SiAl3O10)(OH)2115590886
Diaspore  (*)DiasporeAlO(OH)1155908481
Diopside  (*)PyroxeneCaMgSi2O611559084135
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)11559088173
Fluoborite  (*)NoneMg3(BO3)F3115590852
Forsterite  (*)OlivineMg2(SiO4)11559081188
Lillianite  (*)LillianitePb3-2xAgxBi2+xS61155908128
Löllingite  (*)LöllingiteFeAs21155908762
Ludwigite  (*)LudwigiteMg2Fe3+O2(BO3)1155908134
Magnetite  (*)SpinelFe2+Fe3+2O4115590814899
Pargasite  (*)AmphiboleNaCa2(Mg4Al)(Si6Al2)O22(OH)21155908313
Safflorite  (*)LöllingiteCoAs21155908317
Scheelite  (*)ScheeliteCa(WO4)114.493.62155907,1559084894
Spinel  (*)SpinelMgAl2O411559081934
Titanite  (*)TitaniteCaTi(SiO4)O11559084899
Vesuvianite  (*)Vesuvianite(Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)1011559081395
Wightmanite  (*)NoneMg5O(BO3)(OH)5·2H2O11559083



9 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
NAVDAT-18648898788±1   18648    212747Chinese Peak, Lakeshore, Fresno Co., California, USA NAVDAT NAVDAT 
NAVDAT-32307998190±9   32307    212747Chinese Peak, Lakeshore, Fresno Co., California, USA NAVDAT NAVDAT 
NAVDAT-4283810.19.79.9±0.2   42838    212747Chinese Peak, Lakeshore, Fresno Co., California, USA NAVDAT NAVDAT 
NAVDAT-4283910.41010.2±0.2   42839    212747Chinese Peak, Lakeshore, Fresno Co., California, USA NAVDAT NAVDAT 
NAVDAT-759012.5410.2611.4±1.14   7590    212747Chinese Peak, Lakeshore, Fresno Co., California, USA NAVDAT NAVDAT 
USGS-U-Th-Pb-02185_206_23897.397.397.3206_238 zircon   Zircon  212747Chinese Peak, Lakeshore, Fresno Co., California, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-02185_207_206180.3180.3180.3207_206 zircon   Zircon  212747Chinese Peak, Lakeshore, Fresno Co., California, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-02185_207_235100.6100.6100.6207_235 zircon   Zircon  212747Chinese Peak, Lakeshore, Fresno Co., California, USA USGS-U-Th-Pb USGS-U-Th-Pb 
NAVDAT-32432114.493.6104±10.4   32432    76445Prior Lake Claim, Lakeshore, Fresno Co., California, USA NAVDAT NAVDAT 


SampleSource LocalityReference URL


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