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:
Spanish Dry Diggings (Spanish Dry Diggins), Greenwood District, Northwest Segment Mother Lode, Mother Lode Belt, El Dorado Co., California, USA


mindat Locality ID: 217109
mindat URL: http://www.mindat.org/loc-217109.html

Tectonic Settings:

Total number of sublocalities beneath "Spanish Dry Diggings (Spanish Dry Diggins), Greenwood District, Northwest Segment Mother Lode, Mother Lode Belt, El Dorado Co., California, USA": 25
Total number of bottom-level sublocalities: 24

Number of Child Localities: 13
Child Localities:
Cederberg First Southerly Extension Mine
Cherokee Flat Mine
French Hill
Grit Mine (Liddicoat; Spanish Dry Diggings)
Hines Slope Placer (Hines-Gilbert Saybert)
Middle Fork American River Placer
Muntz Claim
New El Dorado Mine
Railroad Hill Mine (Railroad Hill Claim)
Sebastopol Mine
Unnamed Au Mine [42]
Unnamed Au Mine [43]
Waun Mine (Wavn Mine)

Latitude: 38°56'38"N
Longitude: 120°55'4"W
Decimal Degree (lat, lon): 38.943888888889,-120.91777777778

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: As Au C Ca Fe H Mg O S Si 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ArsenopyriteCalciteClayCopperNonePyriteQuartzSerpentine

7 IMA Minerals at location:
Ankerite  (*)Arsenopyrite  (*)Calcite  (*)Chrysotile  (*)Gold  (*)
Pyrite  (*)Quartz  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Ankerite  (*)NoneCa(Fe2+,Mg)(CO3)211548053092
Arsenopyrite  (*)ArsenopyriteFeAsS11548059052
Calcite  (*)CalciteCa(CO3)2154805,15480927770
Chrysotile  (*)Serpentine ClayMg3Si2O5(OH)41154800951
Gold  (*)CopperAu18154794,154795,154797,154798,154799,154800,154802,154803,154804,154805,154809,154810,154811,154812,154813,154814,154815,15481830554
Pyrite  (*)PyriteFeS22154805,15480939462
Quartz  (*)QuartzSiO214154794,154795,154797,154799,154800,154802,154803,154805,154809,154812,154813,154814,154815,15481861156



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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