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:
Blewett, Blewett District (Peshastin District), Chelan Co., Washington, USA

Oldest recorded age at locality: 162
Youngest recorded age at locality: 160

mindat Locality ID: 20011
mindat URL: http://www.mindat.org/loc-20011.html

Tectonic Settings:

Total number of sublocalities beneath "Blewett, Blewett District (Peshastin District), Chelan Co., Washington, USA": 60
Total number of bottom-level sublocalities: 51

Number of Child Localities: 19
Child Localities:
Bear Creek
Blewett Township Ore Bin
Camas Land
Cook Mine
Culver Gulch
Donahue Mine
Fraction Mine
Garnierite Claim
Gold Bond Mine
Golden Eagle Mine
La Rica Mine
Lucky Queen Mine
Manistee Mine
Olden Mine (Eastern Star Claim)
Peshastin Creek
Prospect Group
Ruby Creek
Scotty Creek
Tip Top Mine

Latitude: 47°25'24"N
Longitude: 120°39'45"W
Decimal Degree (lat, lon): 47.423333333333,-120.6625

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 Cr Cu Fe H Hg Mg O Pb S Sb Si 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ArsenopyriteCalciteChalcopyriteClayCopperCorundumMalachiteNonePyriteQuartz
RocksaltSpinelStibniteTalc

16 IMA Minerals at location:
Arsenopyrite  (*)Calcite  (*)Chalcopyrite  (*)Chromite  (*)Cinnabar  (*)
Copper  (*)Galena  (*)Gold  (*)Hematite  (*)Magnetite  (*)
Malachite  (*)Mercury  (*)Pyrite  (*)Quartz  (*)Stibnite  (*)
Talc  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Arsenopyrite  (*)ArsenopyriteFeAsS22283480,283484,283485,283486,283491,283492,283495,283496,283497,283498,283499,283502,283503,283505,283508,283509,283511,283512,283514,283518,283525,2835369052
Calcite  (*)CalciteCa(CO3)31283484,283486,283487,283488,283490,283491,283492,283496,283497,283498,283499,283502,283503,283505,283508,283509,283510,283511,283512,283514,283517,283518,283519,283520,283525,283526,283527,283528,283529,283530,28353627770
Chalcopyrite  (*)ChalcopyriteCuFeS217283485,283486,283487,283488,283490,283496,283499,283503,283505,283508,283509,283511,283512,283514,283518,283525,28353627198
Chromite  (*)SpinelFe2+Cr2O410283503,283505,283508,283509,283511,283512,283515,283518,283525,2835363902
Cinnabar  (*)NoneHgS9283503,283505,283508,283509,283511,283512,283518,283525,2835362600
Copper  (*)CopperCu11283483,283485,283503,283505,283508,283509,283511,283512,283518,283525,2835363846
Galena  (*)RocksaltPbS10283499,283503,283505,283508,283509,283511,283512,283518,283525,28353624243
Gold  (*)CopperAu31283480,283482,283491,283492,283495,283496,283497,283499,283501,283502,283503,283504,283505,283507,283508,283509,283510,283511,283512,283514,283516,283517,283518,283519,283520,283523,283524,283525,283533,283535,28353630554
Hematite  (*)CorundumFe2O310283503,283505,283508,283509,283511,283512,283515,283518,283525,28353614640
Magnetite  (*)SpinelFe2+Fe3+2O411283503,283505,283508,283509,283511,283512,283515,283518,283525,283535,28353614899
Malachite  (*)MalachiteCu2(CO3)(OH)29283503,283505,283508,283509,283511,283512,283518,283525,28353612537
Mercury  (*)NoneHg1283495397
Pyrite  (*)PyriteFeS222283484,283485,283486,283487,283488,283490,283492,283495,283496,283498,283499,283502,283503,283505,283508,283509,283511,283512,283517,283518,283525,28353639462
Quartz  (*)QuartzSiO233283484,283486,283487,283488,283490,283491,283492,283495,283496,283497,283498,283499,283500,283501,283502,283503,283505,283508,283509,283510,283511,283512,283514,283517,283518,283525,283526,283527,283528,283529,283530,283535,28353661156
Stibnite  (*)StibniteSb2S310283499,283503,283505,283508,283509,283511,283512,283518,283525,2835363418
Talc  (*)Clay TalcMg3Si4O10(OH)216283484,283491,283492,283496,283497,283498,283499,283502,283508,283510,283517,283526,283527,283528,283529,2835303337



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
NAVDAT-90815162160161±1   90815    52701Gem Claim, Culver Gulch, Blewett, Blewett District (Peshastin District), Chelan Co., Washington, USA NAVDAT NAVDAT 
NAVDAT-90807162160161±1   90807    53529Garnierite Claim, Blewett, Blewett District (Peshastin District), Chelan Co., Washington, USA NAVDAT NAVDAT 


SampleSource LocalityReference URL


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