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:
Sunnybrook, Pardee District, Amador Co., California, USA

Oldest recorded age at locality: 281
Youngest recorded age at locality: 170

mindat Locality ID: 263818
mindat URL: http://www.mindat.org/loc-263818.html

Tectonic Settings:

Total number of sublocalities beneath "Sunnybrook, Pardee District, Amador Co., California, USA": 21
Total number of bottom-level sublocalities: 21

Number of Child Localities: 21
Child Localities:
Allen Property (Wheeler Mine; Johnson Lease)
Amador Lime Rock Deposit
Boring Shale Pit
Carr And Mefford Mine (Mooney Claim)
Courtwright Property (Daggett Lease)
Courtwright Property (Woods And Roach Lease)
Custer Deposit
Custer Prospect (Dooley Prospect; Custer Dooley Prospect)
Du Frene Prospect (Dufrene Prospect; Empire Mine; Pacific Mine)
Ecklund Property
Ellis Brothers Ranch
Hayward Mine (Allen Mine)
Ione City Mine
Johnson Ranch Mine
Kremmel And Froelich Mine
Mace Mine (Mace Ranch Prospect)
Moon Prospect
Mooney Prospect (Mooney Claims)
Newton Mine (Newton Copper Mine; Jackson Mine)
Questa Prospect
Unspecified Cr Occurrence [4]

Latitude: 38°20'11"N
Longitude: 120°52'14"W
Decimal Degree (lat, lon): 38.336388888889,-120.87055555556

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 C Ca Cr Cu Fe H K Mg Mn O Pb S Si Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AmorphousCalciteChalcopyriteClayCopiapiteCopperMicaNoneNot in a structural groupPyrite
QuartzRhodoniteRocksaltRutileSerpentineSphaleriteSpinelTalc

20 IMA Minerals at location:
Calcite  (*)Chalcocite  (*)Chalcopyrite  (*)Chromite  (*)Chrysotile  (*)
Copiapite  (*)Copper  (*)Cuprocopiapite  (*)Galena  (*)Kornelite  (*)
Magnesiochromite  (*)Magnetite  (*)Muscovite  (*)Opal  (*)Pyrite  (*)
Pyrolusite  (*)Quartz  (*)Rhodonite  (*)Sphalerite  (*)Talc  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Calcite  (*)CalciteCa(CO3)170170115123427770
Chalcocite  (*)NoneCu2S17017011512345707
Chalcopyrite  (*)ChalcopyriteCuFeS21701703151227,151228,15123427198
Chromite  (*)SpinelFe2+Cr2O42812813151216,151221,1512363902
Chrysotile  (*)Serpentine ClayMg3Si2O5(OH)41151231951
Copiapite  (*)CopiapiteFe2+Fe3+4(SO4)6(OH)2·20H2O1701701151234382
Copper  (*)CopperCu17017011512343846
Cuprocopiapite  (*)CopiapiteCu2+Fe3+4(SO4)6(OH)2·20H2O170170115123412
Galena  (*)RocksaltPbS170170115123424243
Kornelite  (*)Not in a structural groupFe3+2(SO4)3·7H2O (?)170170115123421
Magnesiochromite  (*)SpinelMgCr2O44151216,151219,151220,151230311
Magnetite  (*)SpinelFe2+Fe3+2O4115122414899
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)21701702151227,15123417380
Opal  (*)AmorphousSiO2·nH2O11512232994
Pyrite  (*)PyriteFeS21701702151227,15123439462
Pyrolusite  (*)RutileMnO211512243106
Quartz  (*)QuartzSiO21701703151223,151227,15123461156
Rhodonite  (*)RhodoniteCaMn3Mn(Si5O15)2151222,151224969
Sphalerite  (*)SphaleriteZnS1701702151227,15123421482
Talc  (*)Clay TalcMg3Si4O10(OH)211512323337



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-00078281281Permian (280±3 m.y. 206Pb/238U, 282±3 m.y. 207Pb/235U)       Cr73556Courtwright Property (Woods And Roach Lease), Sunnybrook, Pardee District, Amador Co., California, USACourtwright PropertyMoiser et al. (2012) USGSSIR2012_5157 
vms-01036170170Jurassic       S16948Newton Mine (Newton Copper Mine; Jackson Mine), Sunnybrook, Pardee District, Amador Co., California, USANewtonMoiser et al. (2009) USGSOFR2009_1034 


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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