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:
Keg Mts (McDowell Mts), Juab Co., Utah, USA


mindat Locality ID: 38095
mindat URL: http://www.mindat.org/loc-38095.html

Tectonic Settings:

Total number of sublocalities beneath "Keg Mts (McDowell Mts), Juab Co., Utah, USA": 7
Total number of bottom-level sublocalities: 7

Number of Child Localities: 7
Child Localities:
Copper Hill Prospect
Dome Hill Prospect
JB Prospect
Lead Hill Prospect
Lead Pit Prospect
North Keg Gold Prospect
North Keg Mountain Prospect

Latitude: 39°49'25"N
Longitude: 112°54'18"W
Decimal Degree (lat, lon): 39.823611111111,-112.905

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 C Ca Cu Fe H K O Pb S Sb Si 

Elements from minerals reported directly at this locality: Al Ca O Si 

Structural Groups for minerals in this locality: 
CalciteChalcopyriteClayCorundumCovelliteFeldsparMalachiteMicaNonePyrite
QuartzRocksaltTetrahedrite

11 IMA Minerals at location:
Anorthite  (*)Calcite  (*)Chalcopyrite  (*)Covellite  (*)Galena  (*)
Hematite  (*)Malachite  (*)Muscovite  (*)Pyrite  (*)Quartz  (*)
Tetrahedrite-(Zn)  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Anorthite  (*)FeldsparCa(Al2Si2O8)01036
Calcite  (*)CalciteCa(CO3)3274407,274409,27441027770
Chalcopyrite  (*)ChalcopyriteCuFeS22274406,27440727198
Covellite  (*)CovelliteCuS12744064165
Galena  (*)RocksaltPbS3274407,274409,27441024243
Hematite  (*)CorundumFe2O3127440614640
Malachite  (*)MalachiteCu2(CO3)(OH)2127440612537
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2127440717380
Pyrite  (*)PyriteFeS23274407,274409,27441039462
Quartz  (*)QuartzSiO24274406,274407,274409,27441061156
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S1312744075317



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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