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:
Caribou Mine Group, Grand Island, Caribou District, Boulder Co., Colorado, USA


mindat Locality ID: 300296
mindat URL: http://www.mindat.org/loc-300296.html

Tectonic Settings:

Total number of sublocalities beneath "Caribou Mine Group, Grand Island, Caribou District, Boulder Co., Colorado, USA": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Caribou Mine (Caribou Shaft)
No Name Mine (No Name Vein)

Latitude: 39°58'47"N
Longitude: 105°35'3"W
Decimal Degree (lat, lon): 39.979722222222,-105.58416666667
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 Au C Ca Cl Cu Fe H Mg Ni O Pb S Sb Si U Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AcanthiteAragoniteCalciteChalcopyriteClayCopperCovelliteFluoriteJalpaiteMalachite
NoneNot in a structural groupPolybasitePyriteQuartzRocksaltSerpentineSphaleriteTetrahedrite

27 IMA Minerals at location:
Acanthite  (*)Azurite  (*)Calcite  (*)Cerussite  (*)Chalcopyrite  (*)
Chlorargyrite  (*)Chrysotile  (*)Covellite  (*)Dolomite  (*)Galena  (*)
Gold  (*)Jalpaite  (*)Malachite  (*)Gersdorffite-Pa3  (*)Pearceite  (*)
Polybasite  (*)Proustite  (*)Pyrargyrite  (*)Pyrite  (*)Quartz  (*)
Siderite  (*)Silver  (*)Sphalerite  (*)Stephanite  (*)Stromeyerite  (*)
Tetrahedrite-(Zn)  (*)Uraninite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Acanthite  (*)AcanthiteAg2S11844912793
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)211844925509
Calcite  (*)CalciteCa(CO3)118449127770
Cerussite  (*)AragonitePb(CO3)11844914979
Chalcopyrite  (*)ChalcopyriteCuFeS2118449127198
Chlorargyrite  (*)RocksaltAgCl11844911382
Chrysotile  (*)Serpentine ClayMg3Si2O5(OH)41184491951
Covellite  (*)CovelliteCuS11844914165
Dolomite  (*)NoneCaMg(CO3)211844919895
Galena  (*)RocksaltPbS2184491,18449224243
Gold  (*)CopperAu118449130554
Jalpaite  (*)JalpaiteAg3CuS21184491116
Malachite  (*)MalachiteCu2(CO3)(OH)2118449212537
Gersdorffite-Pa3  (*)PyriteNiAsS1184491767
Pearceite  (*)Polybasite[Ag9CuS4][(Ag,Cu)6(As,Sb)2S7]1184491249
Polybasite  (*)Polybasite[Ag9CuS4][(Ag,Cu)6(Sb,As)2S7]1184491716
Proustite  (*)NoneAg3AsS31184491733
Pyrargyrite  (*)NoneAg3SbS311844911425
Pyrite  (*)PyriteFeS2118449139462
Quartz  (*)QuartzSiO2118449161156
Siderite  (*)CalciteFe(CO3)11844916417
Silver  (*)CopperAg2184491,1844925186
Sphalerite  (*)SphaleriteZnS2184491,18449221482
Stephanite  (*)NoneAg5SbS41184491586
Stromeyerite  (*)NoneCuAgS1184491332
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S132184491,1844925317
Uraninite  (*)FluoriteUO22184491,1844922718


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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