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:
North Fork Area, Lemhi Co., Idaho, USA


mindat Locality ID: 279500
mindat URL: http://www.mindat.org/loc-279500.html

Tectonic Settings:

Total number of sublocalities beneath "North Fork Area, Lemhi Co., Idaho, USA": 17
Total number of bottom-level sublocalities: 17

Number of Child Localities: 17
Child Localities:
Copper King Mine
Copper Queen Occurrence (EZ Copper)
Fourth Of July Creek Placer
Goldsmith Occurrence (Smith)
Little Thompson Gulch Prospect
Nineteen-Hundred Lode Occurrence
O'Neil Gulch Prospect (Rattlesnake Claim Group)
Orofino Lode Occurrence
Rathburn Gulch Prospect
Sheep Creek Mine
Sheep Creek Placer
Smitty Prospect
Sunrise Prospect
Tower Creek Placer (Boyle Creek)
Wagonhammer Prospect
White Azalea Claim
Wilcox Prospect

Latitude: 45°25'29"N
Longitude: 113°53'32"W
Decimal Degree (lat, lon): 45.424722222222,-113.89222222222

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 Au C Cu Fe H O Pb S 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ChalcopyriteCopperMalachiteNoneRocksalt

6 IMA Minerals at location:
Chalcopyrite  (*)Copper  (*)Galena  (*)Gold  (*)Malachite  (*)
Silver  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Chalcopyrite  (*)ChalcopyriteCuFeS2121013827198
Copper  (*)CopperCu12101343846
Galena  (*)RocksaltPbS121013824243
Gold  (*)CopperAu6210135,210137,210139,210143,210146,21014730554
Malachite  (*)MalachiteCu2(CO3)(OH)2121013812537
Silver  (*)CopperAg2210137,2101395186



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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