Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org

Important Update News

The RRUFF Project has been migrated to RRUFF.net. Please update your bookmarks immediately, if you have not done so.

The data on this website is already three years out of date, and the entire website will be taken offline before the end of the year.

We are grateful to NASA for the funding of this effort.




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:
Lusk, Niobrara Co., Wyoming, USA


mindat Locality ID: 267461
mindat URL: http://www.mindat.org/loc-267461.html

Tectonic Settings:

Total number of sublocalities beneath "Lusk, Niobrara Co., Wyoming, USA": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Silver Cliff Mine (Rochelle Mine)

Latitude: 42°45'41"N
Longitude: 104°28'10"W
Decimal Degree (lat, lon): 42.761388888889,-104.46944444444

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 C Ca Cu Fe H K Mg O P S Si U 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AllophaneAmphiboleCalciteClayClinozoisiteCopperEpidoteFluoriteGarnetKaolinite
MalachiteNoneNot in a structural groupPyriteQuartz

18 IMA Minerals at location:
Actinolite  (*)Andradite  (*)Azurite  (*)Calcite  (*)Chalcocite  (*)
Chrysocolla  (*)Clinozoisite  (*)Copper  (*)Cuprite  (*)Kaolinite  (*)
Malachite  (*)Metatorbernite  (*)Pyrite  (*)Quartz  (*)Silver  (*)
Uraninite  (*)Uranophane-α  (*)Weeksite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)212934333419
Andradite  (*)GarnetCa3Fe3+2(SiO4)312934331534
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)212934335509
Calcite  (*)CalciteCa(CO3)129343327770
Chalcocite  (*)NoneCu2S12934335707
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O12934333531
Clinozoisite  (*)Clinozoisite EpidoteCa2Al3[Si2O7][SiO4]O(OH)12934331025
Copper  (*)CopperCu12934333846
Cuprite  (*)Not in a structural groupCu2O12934332970
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)412934335591
Malachite  (*)MalachiteCu2(CO3)(OH)2129343312537
Metatorbernite  (*)NoneCu(UO2)2(PO4)2·8H2O1293433443
Pyrite  (*)PyriteFeS2129343339462
Quartz  (*)QuartzSiO2129343361156
Silver  (*)CopperAg12934335186
Uraninite  (*)FluoriteUO212934332718
Uranophane-α  (*)NoneCa(UO2)2(SiO3OH)2·5H2O1293433890
Weeksite  (*)None(K)2(UO2)2(Si5O13)·4H2O129343342



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

All age data...

Other copyright data...