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:
Slate Mountain, Slate Mountain District, Slate Mts, El Dorado Co., California, USA


mindat Locality ID: 220197
mindat URL: http://www.mindat.org/loc-220197.html

Tectonic Settings:

Total number of sublocalities beneath "Slate Mountain, Slate Mountain District, Slate Mts, El Dorado Co., California, USA": 7
Total number of bottom-level sublocalities: 7

Number of Child Localities: 7
Child Localities:
Bret Harte Mine (Safeguard No. 1)
Ida & Edith Mine
Independence Mine [1]
R. S. T. Claims
Rip Van Winkle Mine
Slate Mountain Mine
Unnamed Mine [1]

Latitude: 38°50'35"N
Longitude: 120°42'52"W
Decimal Degree (lat, lon): 38.843055555556,-120.71444444444
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 Cu Fe H O P Pb S Si Ti 

Elements from minerals reported directly at this locality: Al Cu H O P 

Structural Groups for minerals in this locality: 
AluniteCopperNoneQuartzRutileTurquoiseWavellite

10 IMA Minerals at location:
Cacoxenite  (*)Crandallite  (*)Gold  (*)Hinsdalite  (*)Quartz  (*)
Rutile  (*)Strengite  (*)Turquoise  (*)Variscite  (*)Wavellite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Cacoxenite  (*)NoneFe3+24AlO6(PO4)17(OH)12·75H2O1155209280
Crandallite  (*)AluniteCaAl3(PO4)(PO3OH)(OH)61155209310
Gold  (*)CopperAu4155204,155205,155206,15520830554
Hinsdalite  (*)AlunitePbAl3(SO4)(PO4)(OH)6115521082
Quartz  (*)QuartzSiO26155204,155205,155206,155208,155209,15521061156
Rutile  (*)RutileTiO211552095614
Strengite  (*)NoneFe3+(PO4)·2H2O1155209263
Turquoise  (*)TurquoiseCuAl6(PO4)4(OH)8·4H2O0484
Variscite  (*)NoneAl(PO4)·2H2O1155209301
Wavellite  (*)WavelliteAl3(PO4)2(OH)3·5H2O1155209374


No ages have been assigned to this locality yet.
SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

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