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:
Skamania Co., Washington, USA

Oldest recorded age at locality: 36
Youngest recorded age at locality: 16

mindat Locality ID: 17547
mindat URL: http://www.mindat.org/loc-17547.html

Tectonic Settings:

Total number of sublocalities beneath "Skamania Co., Washington, USA": 101
Total number of bottom-level sublocalities: 81

Number of Child Localities: 18
Child Localities:
Bald Mountain
Bear Creek
Dog Mountain
Green River
Lewis River
Mcc Nos. 1 And 2 Claims (Mcc Claims 1 And 2; Meyer-Clark & Clark; Mcc Lode)
McCoy Peak
Mccuiston B & M Lode (Mccuiston G And M Claims)
Mccuiston C & M Lode (Mccuiston C And M Claims)
Mt St Helens District
Rainbow Prospect
Randle
Rapid River
Silver Queen Lode (Silver Queen Claim Group)
Stevenson
Washougal District
Wind River
Wind River Mine

Latitude: 46°5'2"N
Longitude: 121°52'30"W
Decimal Degree (lat, lon): 46.083888888889,-121.875
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 As Au B C Ca Cl Cu F Fe H K Mg Mo Na O P Pb S Si V Zn 

Elements from minerals reported directly at this locality: C 

Structural Groups for minerals in this locality: 
AllophaneAnalcimeAndalusiteApatiteArsenopyriteCalciteChalcopyriteClayClinozoisiteCopper
CorundumCovelliteDescloiziteDiamondDiasporeDumortieriteEpidoteFluoriteGadoliniteKaolinite
MalachiteMicaMolybdeniteMordeniteNatroliteNickelineNoneNot in a structural groupPyriteQuartz
RocksaltScheeliteSphaleriteSpinelTalcTourmaline

43 IMA Minerals at location:
Analcime  (*)Andalusite  (*)Arsenopyrite  (*)Azurite  (*)Bornite  (*)
Calcite  (*)Celadonite  (*)Chalcocite  (*)Chalcopyrite  (*)Chrysocolla  (*)
Copper  (*)Covellite  (*)Cuprite  (*)Datolite  (*)Diamond  (*)
Dumortierite  (*)Epidote  (*)Epistilbite  (*)Fluorite  (*)Galena  (*)
Goethite  (*)Gold  (*)Hematite  (*)Kaolinite  (*)Laumontite  (*)
Magnetite  (*)Malachite  (*)Molybdenite  (*)Mordenite  (*)Mottramite  (*)
Muscovite  (*)Pyrite  (*)Pyromorphite  (*)Pyrrhotite  (*)Quartz  (*)
Realgar  (*)Schorl  (*)Scolecite  (*)Siderite  (*)Sillimanite  (*)
Sphalerite  (*)Talc  (*)Wulfenite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Analcime  (*)AnalcimeNa(AlSi2O6)·H2O362812855891627
Andalusite  (*)AndalusiteAl2SiO512856021310
Arsenopyrite  (*)ArsenopyriteFeAsS17164285532,285537,285544,2855579052
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)217164285544,285601,285603,2856045509
Bornite  (*)NoneCu5FeS4211610285532,285535,285544,285591,285593,285595,285600,285601,285603,2856045516
Calcite  (*)CalciteCa(CO3)361611285511,285516,285517,285522,285544,285571,285589,285593,285600,285605,28560727770
Celadonite  (*)Mica ClayKMgFe3+Si4O10(OH)21285582309
Chalcocite  (*)NoneCu2S21166285522,285532,285544,285593,285600,2856035707
Chalcopyrite  (*)ChalcopyriteCuFeS2211630285522,285532,285533,285535,285536,285537,285538,285543,285544,285545,285547,285549,285554,285556,285557,285558,285559,285560,285561,285572,285573,285591,285593,285595,285598,285600,285601,285603,285604,28560527198
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O17163285544,285600,2856033531
Copper  (*)CopperCu17162285544,2855573846
Covellite  (*)CovelliteCuS17162285544,2856034165
Cuprite  (*)Not in a structural groupCu2O12856012970
Datolite  (*)GadoliniteCaB(SiO4)(OH)2285514,285517498
Diamond  (*)DiamondC36160697
Dumortierite  (*)DumortieriteAlAl6BSi3O181285602231
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)17162285544,2855958173
Epistilbite  (*)MordeniteCa3[Si18Al6O48]·16H2O1285517138
Fluorite  (*)FluoriteCaF22285514,2855179617
Galena  (*)RocksaltPbS211617285522,285535,285536,285537,285538,285541,285544,285545,285549,285557,285559,285571,285572,285593,285597,285598,28560524243
Goethite  (*)DiasporeFeO(OH)221612855447437
Gold  (*)CopperAu12285520,285522,285523,285524,285525,285526,285535,285545,285549,285581,285595,28560730554
Hematite  (*)CorundumFe2O322162285544,28560114640
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)417162285544,2855955591
Laumontite  (*)Not in a structural groupCaAl2Si4O12·4H2O12855881271
Magnetite  (*)SpinelFe2+Fe3+2O421163285544,285593,28559514899
Malachite  (*)MalachiteCu2(CO3)(OH)2171611285532,285544,285556,285573,285591,285595,285600,285601,285603,285604,28560712537
Molybdenite  (*)MolybdeniteMoS221164285522,285544,285593,2855955800
Mordenite  (*)Mordenite(Na2,Ca,K2)4(Al8Si40)O96·28H2O36285285510,285516,285517,285584,285589405
Mottramite  (*)DescloizitePbCu(VO4)(OH)1285600362
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)222166285532,285544,285593,285595,285599,28560217380
Pyrite  (*)PyriteFeS2211633285517,285522,285532,285533,285535,285537,285541,285543,285544,285545,285546,285547,285549,285553,285554,285556,285557,285558,285570,285571,285572,285573,285580,285581,285591,285593,285595,285598,285600,285601,285603,285605,28560739462
Pyromorphite  (*)ApatitePb5(PO4)3Cl12856001725
Pyrrhotite  (*)NickelineFe7S83285558,285572,2855959056
Quartz  (*)QuartzSiO2361636285511,285516,285517,285522,285525,285532,285535,285537,285543,285544,285545,285546,285549,285556,285557,285558,285560,285561,285571,285572,285573,285581,285584,285585,285589,285591,285593,285595,285597,285600,285601,285602,285603,285604,285605,28560761156
Realgar  (*)NoneAsS1285607712
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)12855552705
Scolecite  (*)NatroliteCa(Si3Al2)O10·3H2O1285510390
Siderite  (*)CalciteFe(CO3)12856056417
Sillimanite  (*)Not in a structural groupAl2SiO52285599,2856021516
Sphalerite  (*)SphaleriteZnS211613285522,285536,285537,285544,285545,285557,285571,285572,285573,285593,285598,285601,28560521482
Talc  (*)Clay TalcMg3Si4O10(OH)23285532,285549,2855723337
Wulfenite  (*)ScheelitePbMoO412856001655


11 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
NAVDAT-10982222121+1/-0   10982    25904Margaret Mine (Germania Mine; Earl Mine; Samson Mine; Goat Mountain Mine), Goat Mtn, Mt St Helens District, Skamania Co., Washington, USA NAVDAT NAVDAT 
NAVDAT-10983222121+1/-0   10983    25904Margaret Mine (Germania Mine; Earl Mine; Samson Mine; Goat Mountain Mine), Goat Mtn, Mt St Helens District, Skamania Co., Washington, USA NAVDAT NAVDAT 
NAVDAT-10984222121+1/-0   10984    25904Margaret Mine (Germania Mine; Earl Mine; Samson Mine; Goat Mountain Mine), Goat Mtn, Mt St Helens District, Skamania Co., Washington, USA NAVDAT NAVDAT 
NAVDAT-10985222121+1/-0   10985    25904Margaret Mine (Germania Mine; Earl Mine; Samson Mine; Goat Mountain Mine), Goat Mtn, Mt St Helens District, Skamania Co., Washington, USA NAVDAT NAVDAT 
NAVDAT-1461017.816.817.3±0.5  whole rock14610    25904Margaret Mine (Germania Mine; Earl Mine; Samson Mine; Goat Mountain Mine), Goat Mtn, Mt St Helens District, Skamania Co., Washington, USA NAVDAT NAVDAT 
NAVDAT-1461117.416.416.9±0.5  whole rock14611    25904Margaret Mine (Germania Mine; Earl Mine; Samson Mine; Goat Mountain Mine), Goat Mtn, Mt St Helens District, Skamania Co., Washington, USA NAVDAT NAVDAT 
PorphCu-00074171617–16      Arsenopyrite, Bornite, Chalcopyrite, Chrysocolla, Copper, Covellite, Epidote, Galena, Kaolinite, Magnetite, Molybdenite, Pyrite, SphaleriteCu25904Margaret Mine (Germania Mine; Earl Mine; Samson Mine; Goat Mountain Mine), Goat Mtn, Mt St Helens District, Skamania Co., Washington, USAMargaretSinger et al. (2008) USGSOFR2008_1155 
NAVDAT-5120362832±4   5120    18264Rock Creek, Stevenson, Skamania Co., Washington, USA NAVDAT NAVDAT 
NAVDAT-5121362832±4   5121    18264Rock Creek, Stevenson, Skamania Co., Washington, USA NAVDAT NAVDAT 
NAVDAT-5965211819+2/-1   5965    25903Black Jack Mine, Gumboot Mountain, Washougal District, Skamania Co., Washington, USA NAVDAT NAVDAT 
NAVDAT-5967211819+2/-1   5967    25903Black Jack Mine, Gumboot Mountain, Washougal District, Skamania Co., Washington, USA NAVDAT NAVDAT 

All locality data graciously provided by mindat.org

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