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:
Georgetown, Georgetown District, East Segment Mother Lode, Mother Lode Belt, El Dorado Co., California, USA


mindat Locality ID: 264248
mindat URL: http://www.mindat.org/loc-264248.html

Tectonic Settings:

Total number of sublocalities beneath "Georgetown, Georgetown District, East Segment Mother Lode, Mother Lode Belt, El Dorado Co., California, USA": 40
Total number of bottom-level sublocalities: 39

Number of Child Localities: 39
Child Localities:
Anderson Placer Mine
Barklage And Miller Mine
Beebe Mine (Iowa Claim; Woodside-Eureka Claim; Brooklyn Claim; East Lode Claim)
Black Oak Mine [2] (Black Oak Deposit; Cassiorina Mine; Cassiorini Mine)
Bottle Hill Placer
Bright Hope Mine
Buffalo Bill Deposit
Cement Hill Placer Prospect
Copper Chief Mine
Cove Hill Mine
David Prospect
David W. Cary Placer (Cary Placer)
Elmira Placer Mine
Esperanza Mine (Esperanza Claim; Garden Valley Claim)
Eureka Mine [1]
Ford Mines
Georgetown Area Occurrences
Georgia Slide Mine (Beattie And Parsons Consonsolidated Mine; Beattie And Parsons Cons.; Beattie Claim; Blue Rock Claim; Mulvey Point Claim; Pacific Claim; Parsons Claim)
Henser Mine
Holmes Placer
Jones Hill Placer
Knight Dredge Mine (Knight Dredge)
Little Chief Mine
Mameluke Hill Mine (Mameluke Mine)
Morning Star Group (Morning Star Claim; Lucky Boy Claim; Evening Star Claim; Lucky Girl Claim)
Mulvey Point Placer (Mulvy Point)
Noble Placer
Patterson Hill Placer (Patterson)
Rock Canyon
Shoemaker Placer
Siegel Lode
Swift And Bennett Mine
Tanksley Placer (Tankaley Placer)
Trimble Placer
Unnamed Asbestos Occurrence [1]
Unnamed Au Occurrence [5]
Unnamed Ti Occurrence [1]
Unspecified Cu Occurrence [2]
Wageman Occurrence (Wagemann)

Latitude: 38°54'40"N
Longitude: 120°49'52"W
Decimal Degree (lat, lon): 38.911111111111,-120.83111111111
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 C Ca Cr Cu F Fe H K Mg Mn Mo Na O Pb S Si Te Ti 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
BrookiteCalciteChloriteClayCopperCorundumEnargiteFeldsparGarnetMica
NoneNot in a structural groupPyriteQuartzRocksaltRutileScheeliteSerpentineSmectite-vermiculiteSpinel
VesuvianiteWurtzite

24 IMA Minerals at location:
Albite  (*)Anatase  (*)Brookite  (*)Calcite  (*)Chromite  (*)
Chrysotile  (*)Clinochlore  (*)Copper  (*)Enargite  (*)Galena  (*)
Gold  (*)Graphite  (*)Hessite  (*)Ilmenite  (*)Margarite  (*)
Muscovite  (*)Nontronite  (*)Paragonite  (*)Pyrite  (*)Pyrolusite  (*)
Quartz  (*)Uvarovite  (*)Vesuvianite  (*)Wulfenite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)11544928803
Anatase  (*)Not in a structural groupTiO211545122162
Brookite  (*)BrookiteTiO21154512700
Calcite  (*)CalciteCa(CO3)115449227770
Chromite  (*)SpinelFe2+Cr2O42154478,1544933902
Chrysotile  (*)Serpentine ClayMg3Si2O5(OH)41154510951
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)82154478,1544911756
Copper  (*)CopperCu11545133846
Enargite  (*)Enargite WurtziteCu3AsS41154490910
Galena  (*)RocksaltPbS115449124243
Gold  (*)CopperAu14154477,154479,154480,154484,154487,154488,154489,154492,154495,154496,154497,154498,154499,15450730554
Graphite  (*)NoneC11545042812
Hessite  (*)NoneAg2Te1154491804
Ilmenite  (*)CorundumFe2+Ti4+O311544915433
Margarite  (*)Mica ClayCaAl2Si2Al2O10(OH)22154491,154504168
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)22154485,15450417380
Nontronite  (*)Clay Smectite-vermiculiteNa0.3Fe3+2(Si,Al)4O10(OH)2·nH2O1154491471
Paragonite  (*)Mica ClayNaAl2(Si3Al)O10(OH)21154504247
Pyrite  (*)PyriteFeS23154477,154492,15449839462
Pyrolusite  (*)RutileMnO211544853106
Quartz  (*)QuartzSiO29154477,154480,154488,154489,154491,154492,154497,154499,15450761156
Uvarovite  (*)GarnetCa3Cr2(SiO4)31154478212
Vesuvianite  (*)Vesuvianite(Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)1011545061395
Wulfenite  (*)ScheelitePbMoO411544881655


No ages have been assigned to this locality yet.

All locality data graciously provided by mindat.org

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