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:
Circle District, Southeast Fairbanks Census Area, Alaska, USA


mindat Locality ID: 203133
mindat URL: http://www.mindat.org/loc-203133.html

Tectonic Settings:

Total number of sublocalities beneath "Circle District, Southeast Fairbanks Census Area, Alaska, USA": 7
Total number of bottom-level sublocalities: 7

Number of Child Localities: 7
Child Localities:
Copper Creek Occurrence
Copper Creek Prospect (lode); Wolverine Copper
Drayham Creek Prospects
Flat Creek Mines
Irish Gulch Mines
Rose Creek; Rosebud Prospect
Unnamed Occurrence (ARDF - CY033; North Of Fisher Creek)

Latitude: 65°0'21"N
Longitude: 142°48'21"W
Decimal Degree (lat, lon): 65.005833333333,-142.80583333333
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: Au C Ca Cu Fe H O Pb S Si W 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
CalciteChalcopyriteCopperCovelliteMalachiteNickelineNoneNot in a structural groupQuartzRocksalt
ScheeliteWollastonite

12 IMA Minerals at location:
Azurite  (*)Bornite  (*)Calcite  (*)Chalcopyrite  (*)Covellite  (*)
Galena  (*)Gold  (*)Malachite  (*)Pyrrhotite  (*)Quartz  (*)
Scheelite  (*)Wollastonite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)211336375509
Bornite  (*)NoneCu5FeS411336375516
Calcite  (*)CalciteCa(CO3)113363727770
Chalcopyrite  (*)ChalcopyriteCuFeS22133637,13364227198
Covellite  (*)CovelliteCuS11336374165
Galena  (*)RocksaltPbS113363724243
Gold  (*)CopperAu3133638,133640,13364130554
Malachite  (*)MalachiteCu2(CO3)(OH)22133637,13364212537
Pyrrhotite  (*)NickelineFe7S811336379056
Quartz  (*)QuartzSiO22133637,13364261156
Scheelite  (*)ScheeliteCa(WO4)11336374894
Wollastonite  (*)WollastoniteCaSiO311336371247


No ages have been assigned to this locality yet.
SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

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