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:
Mammoth Lakes, Lakes District (Lake District; Mammoth District), Mono Co., California, USA

Oldest recorded age at locality: 3.1
Youngest recorded age at locality: 0.18

mindat Locality ID: 209143
mindat URL: http://www.mindat.org/loc-209143.html

Tectonic Settings:

Total number of sublocalities beneath "Mammoth Lakes, Lakes District (Lake District; Mammoth District), Mono Co., California, USA": 13
Total number of bottom-level sublocalities: 11

Number of Child Localities: 10
Child Localities:
Beauregard Mine
Coldwater Prospect
Emerald Lake
Faulk Mine
Lisbon Mine (Little Bodie Mine)
Mammoth Consolidated Mine (Mammoth Mine; Crystal Craig Mine; Argosy Group)
Mammoth Mine (Old Mammoth Mine; San Francisco Claim; Folk Claim; Armstrong Claim; Big Bonanza Claim)
Monte Cristo Mine (Monte Christo Mine)
Pappas Prospect (Horseshoe No. 1)
Sierra Group (Sierra No. 3 Claim; Sierra No. 4 Claim; Sierra No. 6 Claim)

Latitude: 37°36'11"N
Longitude: 118°59'11"W
Decimal Degree (lat, lon): 37.603055555556,-118.98638888889

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 Au Ba C Ca Cu Fe H Mg O Pb S Si U Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AcanthiteAmphiboleArsenopyriteBaryteCalciteChalcopyriteClinozoisiteCopperEpidoteFluorite
GarnetNickelineNonePyritePyroxeneQuartzRocksaltSphalerite

20 IMA Minerals at location:
Acanthite  (*)Arsenopyrite  (*)Baryte  (*)Calcite  (*)Chalcopyrite  (*)
Clinozoisite  (*)Diopside  (*)Epidote  (*)Galena  (*)Gold  (*)
Grossular  (*)Hedenbergite  (*)Pyrite  (*)Pyrrhotite  (*)Quartz  (*)
Silver  (*)Sphalerite  (*)Tremolite  (*)Uraninite  (*)Uranophane-α  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Acanthite  (*)AcanthiteAg2S3.10.1811643212793
Arsenopyrite  (*)ArsenopyriteFeAsS3.10.1811643259052
Baryte  (*)BaryteBa(SO4)3.10.182164325,16432711547
Calcite  (*)CalciteCa(CO3)3.10.18116432127770
Chalcopyrite  (*)ChalcopyriteCuFeS23.10.18116432127198
Clinozoisite  (*)Clinozoisite EpidoteCa2Al3[Si2O7][SiO4]O(OH)0.220.1811643241025
Diopside  (*)PyroxeneCaMgSi2O60.220.1811643244135
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)3.10.1811643238173
Galena  (*)RocksaltPbS3.10.18116432124243
Gold  (*)CopperAu3.10.185164319,164320,164321,164323,16432530554
Grossular  (*)GarnetCa3Al2(SiO4)30.220.1811643241544
Hedenbergite  (*)PyroxeneCaFe2+Si2O60.220.181164324741
Pyrite  (*)PyriteFeS23.10.183164319,164321,16432539462
Pyrrhotite  (*)NickelineFe7S83.10.1811643219056
Quartz  (*)QuartzSiO23.10.186164315,164319,164320,164321,164323,16432561156
Silver  (*)CopperAg3.10.1811643215186
Sphalerite  (*)SphaleriteZnS3.10.18116432121482
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)20.220.1811643242562
Uraninite  (*)FluoriteUO23.10.1811643182718
Uranophane-α  (*)NoneCa(UO2)2(SiO3OH)2·5H2O3.10.181164318890



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
NAVDAT-75483.13.13.1±0   7548    209143Mammoth Lakes, Lakes District (Lake District; Mammoth District), Mono Co., California, USA NAVDAT NAVDAT 
NAVDAT-182860.220.180.2±0.02   18286    83282Pappas Prospect (Horseshoe No. 1), Mammoth Lakes, Lakes District (Lake District; Mammoth District), Mono Co., California, USA NAVDAT NAVDAT 


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

All age data...

Other copyright data...