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:
Willis Gulch, Quartz Hill, Central City District, Gilpin Co., Colorado, USA


mindat Locality ID: 26809
mindat URL: http://www.mindat.org/loc-26809.html

Tectonic Settings:

Total number of sublocalities beneath "Willis Gulch, Quartz Hill, Central City District, Gilpin Co., Colorado, USA": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Powers Mine
Wood Mine (E. Calhoun)

Latitude: 39°46'59"N
Longitude: 105°30'"W
Decimal Degree (lat, lon): 39.783055555556,-105.5
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 As Au Cu Fe H K O Pb S Si U Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AluniteChalcopyriteClayCopperCovelliteEnargiteFluoriteKaoliniteNickelineNone
PyriteQuartzRocksaltSphaleriteTetrahedriteWurtziteZippeite

16 IMA Minerals at location:
Bornite  (*)Chalcocite  (*)Chalcopyrite  (*)Covellite  (*)Enargite  (*)
Galena  (*)Gold  (*)Jarosite  (*)Kaolinite  (*)Pyrite  (*)
Pyrrhotite  (*)Quartz  (*)Sphalerite  (*)Tennantite-(Fe)  (*)Uraninite  (*)
Zippeite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Bornite  (*)NoneCu5FeS411890505516
Chalcocite  (*)NoneCu2S11890505707
Chalcopyrite  (*)ChalcopyriteCuFeS2118905027198
Covellite  (*)CovelliteCuS11890504165
Enargite  (*)Enargite WurtziteCu3AsS41189049910
Galena  (*)RocksaltPbS118905024243
Gold  (*)CopperAu118905030554
Jarosite  (*)AluniteKFe3+3(SO4)2(OH)611890502228
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)411890505591
Pyrite  (*)PyriteFeS22189049,18905039462
Pyrrhotite  (*)NickelineFe7S811890509056
Quartz  (*)QuartzSiO22189049,18905061156
Sphalerite  (*)SphaleriteZnS118905021482
Tennantite-(Fe)  (*)TetrahedriteCu6(Cu4Fe2)As4S1311890501803
Uraninite  (*)FluoriteUO211890502718
Zippeite  (*)ZippeiteK2[(UO2)4(SO4)2O2(OH)2](H2O)41189050175


No ages have been assigned to this locality yet.
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