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:
Gemini Mine, Tintic District, East Tintic Mts, Juab Co., Utah, USA

Oldest recorded age at locality: 32
Youngest recorded age at locality: 32

mindat Locality ID: 38155
mindat URL: http://www.mindat.org/loc-38155.html

Tectonic Settings:

Total number of sublocalities beneath "Gemini Mine, Tintic District, East Tintic Mts, Juab Co., Utah, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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 As C Cl Cu Fe H O Pb S Sb Si Zn 

Elements from minerals reported directly at this locality: Ag As C Cl Cu Fe H O Pb S Sb Si Zn 

Structural Groups for minerals in this locality: 
AragoniteBaryteCalciteCopperCovelliteMalachiteMarcasiteNoneNot in a structural groupPolybasite
QuartzRocksaltSphalerite

15 IMA Minerals at location:
Anglesite  (*)Aurichalcite  (*)Azurite  (*)Cerussite  (*)Chlorargyrite  (*)
Covellite  (*)Galena  (*)Hydrozincite  (*)Malachite  (*)Marcasite  (*)
Pearceite  (*)Quartz  (*)Silver  (*)Smithsonite  (*)Sphalerite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Anglesite  (*)BarytePb(SO4)323202734
Aurichalcite  (*)None(Zn,Cu)5(CO3)2(OH)632320919
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)2323205509
Cerussite  (*)AragonitePb(CO3)323204979
Chlorargyrite  (*)RocksaltAgCl323201382
Covellite  (*)CovelliteCuS323204165
Galena  (*)RocksaltPbS3232024243
Hydrozincite  (*)NoneZn5(CO3)2(OH)6323201066
Malachite  (*)MalachiteCu2(CO3)(OH)23232012537
Marcasite  (*)MarcasiteFeS2323205674
Pearceite  (*)Polybasite[Ag9CuS4][(Ag,Cu)6(As,Sb)2S7]32320249
Quartz  (*)QuartzSiO23232061156
Silver  (*)CopperAg323205186
Smithsonite  (*)CalciteZn(CO3)323202473
Sphalerite  (*)SphaleriteZnS3232021482



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
sedznpb-00496323232     Yes  4192Tintic District, East Tintic Mts, Juab Co., Utah, USATintic–East TinticSinger et al. (2009) USGSOFR2009-1252 


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

All age data...

Other copyright data...