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:
Quartzburg District (Comer District), Grant Co., Oregon, USA

Oldest recorded age at locality: 206
Youngest recorded age at locality: 23.8

mindat Locality ID: 50162
mindat URL: http://www.mindat.org/loc-50162.html

Tectonic Settings: Collisional Boundary

Total number of sublocalities beneath "Quartzburg District (Comer District), Grant Co., Oregon, USA": 65
Total number of bottom-level sublocalities: 62

Number of Child Localities: 62
Child Localities:
Andrew Jackson Occurrence
Beaver States 1-2 (Buck Gulch Group)
Black Dog Claim
Blue Bell Claim
Boulder Group (Boulder Ridge Mining Company; Cobalt Gold Mines Inc.)
Buck Gulch Group
Bull Run 1 Occurrence
Bull Run Pit
Charlie Q. Occurrence (Leslie Ray; Ran 1; Sadie Bell 1-2; Ruth Tee Ann; Sharyl Ann; Mary Lou; Short Rock; Tory D.; Dana Lou; Wilma L.)
Comer Occurrence
Comini Quarries
Copper Mountain Group (Including Sherbandy Group)
Copperopolis Mine
Dixie Creek Placers (H. F. England Company)
Dixie Meadows (Intermediate; Blacksmith)
Dixie Mountain
Dixie Queen Occurrence
Dixie Trail Group (Dixie Trail Grant)
Equity Group (Quartzburg Mining Company; Colorado Group)
Fitzsimmons Group
Forrester Group
Gladys Occurrence (Kayuse)
Gold Prospect (MRDS - 10036647)
Gold Prospect (MRDS - 10036648)
Gold Prospect (MRDS - 10036649)
Gold Prospect (MRDS - 10036650)
Gold Prospect (MRDS - 10052966)
Gold Prospect (MRDS - 10095341)
Gold Prospect (MRDS - 10095342)
Haley Claim
Havilah Occurrence
Howell And Haight Property
Juniper Vein (Part Of The Standard Group)
Keystone (Last Chance; The Keystore Group; Golden Eagle)
Last Chance Group (Jensen Group)
Lillie Jane Occurrence (New Deal)
Lucky Bell Occurrence
M & M Mining Company Occurrence
Minty Group
Minty Group (Midnight; Blue Bird; Porman; Morning; Paul Tote; Cougar; Bonanza; Blue Mountain Chief; Klondike)
Muddy Duck
Nebraska Boy Occurrence
Ophir Mine
Prairie City
Present Need
Prindle Property (Blueberry; Black Prince)
Quartzburg Prospect
Silver Bow Occurrence
Smuggler Occurrence
Stithum Mine
Summers Prospect
Tell Heart Occurrence (Early Bird)
Unnamed Gold Occurrence (MRDS - 10225656)
Unnamed Gold Prospect (MRDS - 10176691)
Unnamed Gold Prospect (MRDS - 10225959)
Unnamed Gold Prospect (MRDS - 10273970)
Unnamed Gold Prospect (MRDS - 10298369)
Unnamed Gold Prospect (MRDS - 10304461)
Uranium Occurrence
Wagonwheel Occurrence
Yankee Blade Occurrence
Yankee Boy Occurrence (Duchess Of Prairies; Bonanza; Dunn)

Latitude: 44°33'6"N
Longitude: 118°41'"W
Decimal Degree (lat, lon): 44.551666666667,-118.68333333333

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 Bi C Ca Co Cr Cu Fe H K Mg Na O Pb S Sb Si Zn 

Elements from minerals reported directly at this locality: As Bi Fe S 

Structural Groups for minerals in this locality: 
ArsenicArsenopyriteCalciteChalcopyriteClayCobaltiteCopperCorundumCovelliteLöllingite
MalachiteMarcasiteMicaNickelineNonePerovskitePyriteQuartzRocksaltSkutterudite
Smectite-vermiculiteSphaleriteSpinelStibniteTetrahedriteVivianite

28 IMA Minerals at location:
Arsenopyrite  (*)Beidellite  (*)Bismuth  (*)Bismuthinite  (*)Bornite  (*)
Calcite  (*)Chalcopyrite  (*)Chromite  (*)Cobaltite  (*)Covellite  (*)
Dolomite  (*)Erythrite  (*)Galena  (*)Glaucodot  (*)Gold  (*)
Hematite  (*)Magnetite  (*)Malachite  (*)Marcasite  (*)Muscovite  (*)
Pyrite  (*)Pyrrhotite  (*)Quartz  (*)Safflorite  (*)Siderite  (*)
Skutterudite  (*)Sphalerite  (*)Tetrahedrite-(Zn)  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Arsenopyrite  (*)ArsenopyriteFeAsS20623.809052
Beidellite  (*)Clay Smectite-vermiculite(Na,Ca)0.3Al2(Si,Al)4O10(OH)2·nH2O125812085
Bismuth  (*)ArsenicBi20623.801966
Bismuthinite  (*)StibniteBi2S312581551935
Bornite  (*)NoneCu5FeS42258120,2581215516
Calcite  (*)CalciteCa(CO3)2066514258113,258114,258121,258132,258137,258138,258141,258142,258144,258148,258149,258155,258171,25817327770
Chalcopyrite  (*)ChalcopyriteCuFeS220633.721258113,258120,258121,258123,258127,258130,258134,258138,258141,258142,258143,258144,258148,258149,258155,258156,258157,258160,258170,258171,25817327198
Chromite  (*)SpinelFe2+Cr2O412581553902
Cobaltite  (*)CobaltiteCoAsS3258120,258121,258155966
Covellite  (*)CovelliteCuS12581574165
Dolomite  (*)NoneCaMg(CO3)25258121,258123,258127,258143,2581559895
Erythrite  (*)VivianiteCo3(AsO4)2·8H2O1258155814
Galena  (*)RocksaltPbS11258121,258123,258127,258128,258142,258143,258149,258155,258156,258171,25817324243
Glaucodot  (*)Arsenopyrite(Co0.5Fe0.5)AsS1258155131
Gold  (*)CopperAu2258122,25815530554
Hematite  (*)CorundumFe2O33258114,258121,25817314640
Magnetite  (*)SpinelFe2+Fe3+2O4125815714899
Malachite  (*)MalachiteCu2(CO3)(OH)2125812012537
Marcasite  (*)MarcasiteFeS23258123,258144,2581565674
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)254.833.76258120,258123,258127,258134,258155,25815717380
Pyrite  (*)PyriteFeS220633.726258113,258120,258121,258123,258127,258128,258129,258130,258132,258133,258134,258136,258137,258138,258141,258142,258143,258144,258148,258155,258156,258157,258160,258170,258171,25817339462
Pyrrhotite  (*)NickelineFe7S8206659258113,258123,258130,258138,258142,258143,258144,258157,2581739056
Quartz  (*)QuartzSiO220633.725258113,258114,258120,258121,258123,258127,258128,258129,258130,258132,258133,258134,258137,258138,258141,258142,258143,258144,258148,258149,258155,258157,258160,258171,25817361156
Safflorite  (*)LöllingiteCoAs21258155317
Siderite  (*)CalciteFe(CO3)12581216417
Skutterudite  (*)Skutterudite PerovskiteCoAs3206652258113,258155531
Sphalerite  (*)SphaleriteZnS2066511258113,258121,258123,258127,258142,258143,258155,258156,258157,258171,25817321482
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S132258121,2581715317



5 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-1072520665135.5±70.5   10725    147729Boulder Group (Boulder Ridge Mining Company; Cobalt Gold Mines Inc.), Quartzburg District (Comer District), Grant Co., Oregon, USA NAVDAT NAVDAT 
NAVDAT-1072120665135.5±70.5   10721    147992Charlie Q. Occurrence (Leslie Ray; Ran 1; Sadie Bell 1-2; Ruth Tee Ann; Sharyl Ann; Mary Lou; Short Rock; Tory D.; Dana Lou; Wilma L.), Quartzburg District (Comer District), Grant Co., Oregon, USA NAVDAT NAVDAT 
NAVDAT-1071314465104.5±39.5   10713    148970Gladys Occurrence (Kayuse), Quartzburg District (Comer District), Grant Co., Oregon, USA NAVDAT NAVDAT 
NAVDAT-1071554.833.744.25±10.55   10715    149165Gold Prospect (MRDS - 10036650), Quartzburg District (Comer District), Grant Co., Oregon, USA NAVDAT NAVDAT 
NAVDAT-1032554.823.839.3±15.5   10325    151765Stithum Mine, Quartzburg District (Comer District), Grant Co., Oregon, USA NAVDAT NAVDAT 


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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