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:
Latrobe District, El Dorado Co., California, USA

Oldest recorded age at locality: 311
Youngest recorded age at locality: 311

mindat Locality ID: 189160
mindat URL: http://www.mindat.org/loc-189160.html

Tectonic Settings:

Total number of sublocalities beneath "Latrobe District, El Dorado Co., California, USA": 32
Total number of bottom-level sublocalities: 30

Number of Child Localities: 2
Child Localities:
Flonellis
Latrobe

Latitude: 38°33'7"N
Longitude: 120°57'12"W
Decimal Degree (lat, lon): 38.551944444444,-120.95333333333
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: Al Au Ca Cr Cu Fe H K Mg O S Si 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ChalcopyriteChloriteClayCopperCorundumGarnetMicaNickelineNonePyrite
QuartzSpinelTalc

13 IMA Minerals at location:
Chalcopyrite  (*)Chromite  (*)Clinochlore  (*)Gold  (*)Hematite  (*)
Magnesiochromite  (*)Magnetite  (*)Muscovite  (*)Pyrite  (*)Pyrrhotite  (*)
Quartz  (*)Talc  (*)Uvarovite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Chalcopyrite  (*)ChalcopyriteCuFeS2115441527198
Chromite  (*)SpinelFe2+Cr2O431131111154411,154417,154418,154421,154425,154426,154427,154429,154430,154437,1544383902
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)83113114154418,154423,154430,1544371756
Gold  (*)CopperAu6154424,154428,154431,154432,154433,15443430554
Hematite  (*)CorundumFe2O3115442314640
Magnesiochromite  (*)SpinelMgCr2O43113111154435311
Magnetite  (*)SpinelFe2+Fe3+2O4115442314899
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2115441317380
Pyrite  (*)PyriteFeS2115441539462
Pyrrhotite  (*)NickelineFe7S811544159056
Quartz  (*)QuartzSiO23154413,154428,15443161156
Talc  (*)Clay TalcMg3Si4O10(OH)211544223337
Uvarovite  (*)GarnetCa3Cr2(SiO4)33113112154423,154437212


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-00102311311Pennsylvanian (311±3 m.y. 206Pb/238U)       Cr77966Murphy Mine, Latrobe, Latrobe District, El Dorado Co., California, USAMurphyMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00103311311Pennsylvanian (311±3 m.y. 206Pb/238U)       Cr78207Smith Mine, Latrobe, Latrobe District, El Dorado Co., California, USASmithMoiser et al. (2012) USGSSIR2012_5157 

SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

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