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:
Smithflat, Placerville District, Mother Lode Belt, El Dorado Co., California, USA


mindat Locality ID: 78205
mindat URL: http://www.mindat.org/loc-78205.html

Tectonic Settings:

Total number of sublocalities beneath "Smithflat, Placerville District, Mother Lode Belt, El Dorado Co., California, USA": 36
Total number of bottom-level sublocalities: 36

Number of Child Localities: 36
Child Localities:
Alvooro Mine (Alveoro)
Benfeldt Mine (Benfield Mine; Rogers)
Benfeldt Rogers Claim (John Benfeldt Claim; Benfeldt; Rogers)
Blue Channel Placer Mine
Carpender Placer (Carpenter)
Chambelain Mine
Deep Channel Placer
Dingman Occurrence
Elf Mine
Fremont Tunnel Placer
George F. Jaeger And Henry Reese Claim Placer (George Jaeger And Henry Reese Claim)
George W. Vineyard Claim
Georgia Hill Tunnel And Hydraulic Placer
Granite Occurrence
Gregory Occurrence
High Tunnel
Horatio L. Robinson Claim
Isaac I. Holmes Claim
Kumfa Mine (Kum Fa Mine; Kum Fu Mine)
Live Oak Occurrence [2]
Mierson Deposit
North Star Mine [1]
Ohio Tunnel Company Placer
Old Henderson And Fryer Placer
Old Stephens Placer
Plattsville Placer
Snow Deposit
Thistle Placer
Thomas Cruson And Rufus H. Olmstead Placer
Thomas Ward Claim
Toll House Mine (Hook And Ladder)
Unknown Diamond Occurrence [4]
Unnamed Abrasives Occurrence [1]
Unspecified Diamond Occurrence [2]
White Rock Diggings Placer
Ziesz-Loomis Placer Mine

Latitude: 38°44'40"N
Longitude: 120°45'22"W
Decimal Degree (lat, lon): 38.744444444444,-120.75611111111

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: Au C O Si 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
CopperDiamondNoneQuartz

3 IMA Minerals at location:
Diamond  (*)Gold  (*)Quartz  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Diamond  (*)DiamondC2155025,155027697
Gold  (*)CopperAu13154994,154995,154996,154997,154998,155002,155009,155012,155015,155018,155024,155028,15502930554
Quartz  (*)QuartzSiO22155002,15501561156



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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