Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org

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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:
Iron Dyke District (Homestead District), Baker Co., Oregon, USA

Oldest recorded age at locality: 270
Youngest recorded age at locality: 270

mindat Locality ID: 49794
mindat URL: http://www.mindat.org/loc-49794.html

Tectonic Settings:

Total number of sublocalities beneath "Iron Dyke District (Homestead District), Baker Co., Oregon, USA": 14
Total number of bottom-level sublocalities: 14

Number of Child Localities: 14
Child Localities:
Ballard Creek Mine (Turtle Bug; Ballard Group)
Cap. Miller Claims
Cole Occurrence
Duck Creek Placers
Elliott Occurrence
Farrell Group (Farrel Creek Property)
Hill Claims
Iron Dike
Koger Group
MacDougall Group (Golden West; Harvest Queen; Mac Dougall; Copper King Group)
Rand-McCarthy Prospects
Red Mound Occurrence (Rogers Group)
Rogers Group
Thorne Flat Prospect

Latitude: 45°0'29"N
Longitude: 116°54'53"W
Decimal Degree (lat, lon): 45.008055555556,-116.91472222222

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 Ba C Ca Cu Fe H O S Sb Si Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AllophaneBaryteCalciteChalcopyriteClinozoisiteEpidoteMalachiteNonePyriteQuartz
SphaleriteTetrahedrite

12 IMA Minerals at location:
Baryte  (*)Bornite  (*)Calcite  (*)Chalcocite  (*)Chalcopyrite  (*)
Chrysocolla  (*)Epidote  (*)Malachite  (*)Pyrite  (*)Quartz  (*)
Sphalerite  (*)Tetrahedrite-(Zn)  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Baryte  (*)BaryteBa(SO4)125535211547
Bornite  (*)NoneCu5FeS412553505516
Calcite  (*)CalciteCa(CO3)2255350,25535227770
Chalcocite  (*)NoneCu2S2255342,2553505707
Chalcopyrite  (*)ChalcopyriteCuFeS22702707255341,255343,255348,255350,255351,255352,25535427198
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O12553503531
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)12553508173
Malachite  (*)MalachiteCu2(CO3)(OH)23255341,255351,25535212537
Pyrite  (*)PyriteFeS22702707255341,255348,255349,255350,255351,255352,25535439462
Quartz  (*)QuartzSiO22702705255343,255348,255350,255351,25535261156
Sphalerite  (*)SphaleriteZnS2702702255348,25535221482
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S1327027012553485317



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
vms-01070270270Permian       S149618Iron Dike, Iron Dyke District (Homestead District), Baker Co., Oregon, USAIron DykeMoiser et al. (2009) USGSOFR2009_1034 


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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