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:
Illinois Mine, Georgetown District, Clear Creek Co., Colorado, USA


mindat Locality ID: 214764
mindat URL: http://www.mindat.org/loc-214764.html

Tectonic Settings:

Total number of sublocalities beneath "Illinois Mine, Georgetown District, Clear Creek Co., Colorado, USA": 7
Total number of bottom-level sublocalities: 7

Number of Child Localities: 7
Child Localities:
Burleigh Mine
Corry City Mine (Wisconsin Mine)
Diamond Mine
Maine Mine
Mendota Mine
Payrock Mine
Seven-Thirty Mine

Latitude: 39°42'2"N
Longitude: 105°42'45"W
Decimal Degree (lat, lon): 39.700555555556,-105.7125

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 Al As Ba C Ca Cu Fe H Mg O Pb S Sb Si Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AcanthiteBaryteCalciteChalcopyriteClayCopperCovelliteEpsomiteGypsumHexahydrite
JalpaiteKaoliniteNonePolybasitePyriteQuartzRocksaltSphaleriteTetrahedriteXanthoconite

30 IMA Minerals at location:
Acanthite  (*)Anglesite  (*)Ankerite  (*)Baryte  (*)Bianchite  (*)
Bornite  (*)Calcite  (*)Chalcocite  (*)Chalcopyrite  (*)Covellite  (*)
Epsomite  (*)Galena  (*)Goslarite  (*)Gypsum  (*)Hydromagnesite  (*)
Hydrozincite  (*)Jalpaite  (*)Kaolinite  (*)Mckinstryite  (*)Polybasite  (*)
Proustite  (*)Pyrargyrite  (*)Pyrite  (*)Pyrostilpnite  (*)Quartz  (*)
Siderite  (*)Silver  (*)Smithsonite  (*)Sphalerite  (*)Tetrahedrite-(Zn)  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Acanthite  (*)AcanthiteAg2S2186043,1860462793
Anglesite  (*)BarytePb(SO4)3186040,186042,1860442734
Ankerite  (*)NoneCa(Fe2+,Mg)(CO3)211860413092
Baryte  (*)BaryteBa(SO4)2186043,18604611547
Bianchite  (*)HexahydriteZn(SO4)·6H2O3186040,186042,18604440
Bornite  (*)NoneCu5FeS411860435516
Calcite  (*)CalciteCa(CO3)5186040,186042,186044,186045,18604627770
Chalcocite  (*)NoneCu2S11860455707
Chalcopyrite  (*)ChalcopyriteCuFeS22186040,18604327198
Covellite  (*)CovelliteCuS11860454165
Epsomite  (*)EpsomiteMg(SO4)·7H2O3186040,186042,186044484
Galena  (*)RocksaltPbS5186040,186041,186043,186045,18604624243
Goslarite  (*)EpsomiteZn(SO4)·7H2O3186040,186042,186044188
Gypsum  (*)GypsumCa(SO4)·2H2O4186040,186042,186044,1860456890
Hydromagnesite  (*)NoneMg5(CO3)4(OH)2·4H2O3186040,186042,186044341
Hydrozincite  (*)NoneZn5(CO3)2(OH)63186040,186042,1860441066
Jalpaite  (*)JalpaiteAg3CuS21186045116
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)43186040,186042,1860445591
Mckinstryite  (*)NoneAg5Cu3S4118604551
Polybasite  (*)Polybasite[Ag9CuS4][(Ag,Cu)6(Sb,As)2S7]4186041,186043,186045,186046716
Proustite  (*)NoneAg3AsS31186046733
Pyrargyrite  (*)NoneAg3SbS32186043,1860461425
Pyrite  (*)PyriteFeS24186041,186043,186045,18604639462
Pyrostilpnite  (*)XanthoconiteAg3SbS3118604384
Quartz  (*)QuartzSiO24186041,186043,186045,18604661156
Siderite  (*)CalciteFe(CO3)11860456417
Silver  (*)CopperAg11860465186
Smithsonite  (*)CalciteZn(CO3)3186040,186042,1860442473
Sphalerite  (*)SphaleriteZnS4186041,186043,186045,18604621482
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S133186041,186043,1860465317



No ages have been assigned to this locality yet.

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All locality data graciously provided by mindat.org

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