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:
Bourne (Cracker City), Cracker Creek District (Sumpter District; Bourne District; McCully District), Blue Mts, Baker Co., Oregon, USA

Oldest recorded age at locality: 166
Youngest recorded age at locality: 150

mindat Locality ID: 59235
mindat URL: http://www.mindat.org/loc-59235.html

Tectonic Settings:

Total number of sublocalities beneath "Bourne (Cracker City), Cracker Creek District (Sumpter District; Bourne District; McCully District), Blue Mts, Baker Co., Oregon, USA": 39
Total number of bottom-level sublocalities: 36

Number of Child Localities: 32
Child Localities:
Amazon Prospect
Analulu Mine
Appomattox Claim
Argonaut Mine (Wilmot; Hemler; George E)
Bald Mountain Group
Bates Prospect
Belle Of Baker Mine
Big Pine Group (Silver Dick; War Eagle)
Big Pine Group (War Eagle Mine; Silver Dick Mine)
Blue Jacket Occurrence
Boston Occurrence
Brooklyn Mine (Free Coinage Mine)
Buckeye Mine
Bunker Hill Mine (Myrtle Claim; Lilac Claim; Bunker Hill Claim)
Climax Mine
Columbia Mine
Cracker Creek Mine (Victor)
Cracker Highland Occurrence (South Minniapolis)
Cracker-Klondike Occurrence (Klondike)
Cracker-Oregon Mine
Cracker-Summit Mine (Dutchman Mine)
Esmerelda Mine (Silver King; Emma Group)
Eureka And Excelsior Mine (E & E Mine; Cracker Creek Mine)
Even Chance Occurrence
Galloway Mine
Golconda Group
Grand Trunk Mine
King Pin Group
Mammoth Mine
Morning Star Mine (Morning Star Occurrence; Extension)
Mountain Bell Mine (Mountain Belle Mine)
North Pole Mine

Latitude: 44°49'33"N
Longitude: 118°13'33"W
Decimal Degree (lat, lon): 44.825833333333,-118.22583333333

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: Ag Al As Au C Ca Cu Fe H Hg K O Pb S Sb Si V Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ArsenopyriteCalciteChalcopyriteClayCopperMarcasiteMicaNonePyriteQuartz
RocksaltSphaleriteStibniteTetrahedrite

15 IMA Minerals at location:
Arsenopyrite  (*)Calcite  (*)Chalcopyrite  (*)Cinnabar  (*)Galena  (*)
Gold  (*)Marcasite  (*)Muscovite  (*)Pyrargyrite  (*)Pyrite  (*)
Quartz  (*)Roscoelite  (*)Sphalerite  (*)Stibnite  (*)Tetrahedrite-(Zn)  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Arsenopyrite  (*)ArsenopyriteFeAsS1661509255028,255029,255031,255034,255042,255043,255050,255061,2550649052
Calcite  (*)CalciteCa(CO3)4255034,255043,255049,25505127770
Chalcopyrite  (*)ChalcopyriteCuFeS21661509255028,255029,255031,255034,255042,255043,255050,255061,25506427198
Cinnabar  (*)NoneHgS12550432600
Galena  (*)RocksaltPbS125506224243
Gold  (*)CopperAu125503430554
Marcasite  (*)MarcasiteFeS21661509255028,255029,255031,255034,255042,255043,255050,255061,2550645674
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2125504317380
Pyrargyrite  (*)NoneAg3SbS312550431425
Pyrite  (*)PyriteFeS216615023255026,255028,255029,255031,255034,255038,255039,255042,255043,255046,255047,255048,255049,255050,255051,255056,255058,255059,255060,255061,255062,255063,25506439462
Quartz  (*)QuartzSiO216615021255026,255028,255029,255031,255034,255039,255040,255042,255043,255046,255047,255048,255049,255050,255051,255056,255058,255059,255061,255063,25506461156
Roscoelite  (*)MicaKV3+2(Si3Al)O10(OH)23255034,255061,255064253
Sphalerite  (*)SphaleriteZnS125504321482
Stibnite  (*)StibniteSb2S31661509255028,255029,255031,255034,255042,255043,255050,255061,2550643418
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S131661509255028,255029,255031,255034,255042,255043,255050,255061,2550645317



1 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
USGS-Rb-Sr-03621166150158±8Rb-Srage of intrusionwhole rock     53513Argonaut Mine (Wilmot; Hemler; George E), Bourne (Cracker City), Cracker Creek District (Sumpter District; Bourne District; McCully District), Blue Mts, Baker Co., Oregon, USA USGS-Rb-Sr USGS-Rb-Sr 


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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