Vote for your favorite mineral in #MinCup26! - Bournonite vs. Vesuvianite
Cogwheels of bournonite are up against colourful vesuvianite.
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Southern Powder River Basin Mining District, Converse County, Wyoming, USAi
Regional Level Types
Southern Powder River Basin Mining DistrictMining District
Converse CountyCounty
WyomingState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
42° North , 105° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~77km
Mindat Locality ID:
7168
Long-form identifier:
mindat:1:2:7168:3
GUID (UUID V4):
0


Monument Hill area (T. 35-39 N., R. 71-74 W.), 30 miles N of Glenrock; sedimentary "roll-front" uranium deposits within sandstones of the Eocene Wasatch Formation; some of the mines were operated by Jenkins and Hand, Loma Uranium Corp., Vern Mrak, Western Nuclear, & Susquehanna-Western. Rocks & Minerals 76:385

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

12 valid minerals.

Rock Types Recorded


Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Autunite
Formula: Ca(UO2)2(PO4)2 · 10-12H2O
Calcite
Formula: CaCO3
Carnotite
Formula: K2(UO2)2(VO4)2 · 3H2O
Coffinite
Formula: U(SiO4) · nH2O
Ferroselite
Formula: FeSe2
'Gummite'
Liebigite
Formula: Ca2(UO2)(CO3)3 · 11H2O
'Limonite'
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Pyrite
Formula: FeS2
Schröckingerite
Formula: NaCa3(UO2)(CO3)3(SO4)F · 10H2O
Tyuyamunite
Formula: Ca(UO2)2(VO4)2 · 5-8H2O
Uraninite
Formula: UO2
Localities: Reported from at least 8 localities in this region.
Uraninite var. Pitchblende
Formula: UO2
Uranophane
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Ferroselite2.EB.10aFeSe2
Group 4 - Oxides and Hydroxides
Uraninite
var. Pitchblende
4.DL.05UO2
4.DL.05UO2
Carnotite4.HB.05K2(UO2)2(VO4)2 · 3H2O
Tyuyamunite4.HB.25Ca(UO2)2(VO4)2 · 5-8H2O
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Liebigite5.ED.20Ca2(UO2)(CO3)3 · 11H2O
Schröckingerite5.EG.05NaCa3(UO2)(CO3)3(SO4)F · 10H2O
Group 8 - Phosphates, Arsenates and Vanadates
Autunite8.EB.05Ca(UO2)2(PO4)2 · 10-12H2O
Group 9 - Silicates
Coffinite9.AD.30U(SiO4) · nH2O
Uranophane9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O
Montmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Unclassified
'Gummite'-
'Limonite'-

List of minerals for each chemical element

HHydrogen
H AutuniteCa(UO2)2(PO4)2 · 10-12H2O
H CarnotiteK2(UO2)2(VO4)2 · 3H2O
H CoffiniteU(SiO4) · nH2O
H LiebigiteCa2(UO2)(CO3)3 · 11H2O
H Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
H SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
H TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
H UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
CCarbon
C CalciteCaCO3
C LiebigiteCa2(UO2)(CO3)3 · 11H2O
C SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
OOxygen
O AutuniteCa(UO2)2(PO4)2 · 10-12H2O
O CalciteCaCO3
O CarnotiteK2(UO2)2(VO4)2 · 3H2O
O CoffiniteU(SiO4) · nH2O
O LiebigiteCa2(UO2)(CO3)3 · 11H2O
O Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
O Uraninite var. PitchblendeUO2
O SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
O TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
O UraniniteUO2
O UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
FFluorine
F SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
NaSodium
Na Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Na SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
MgMagnesium
Mg Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
AlAluminium
Al Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
SiSilicon
Si CoffiniteU(SiO4) · nH2O
Si Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Si UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
PPhosphorus
P AutuniteCa(UO2)2(PO4)2 · 10-12H2O
SSulfur
S PyriteFeS2
S SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
KPotassium
K CarnotiteK2(UO2)2(VO4)2 · 3H2O
CaCalcium
Ca AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Ca CalciteCaCO3
Ca LiebigiteCa2(UO2)(CO3)3 · 11H2O
Ca Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Ca SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
Ca TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
Ca UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
VVanadium
V CarnotiteK2(UO2)2(VO4)2 · 3H2O
V TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
FeIron
Fe FerroseliteFeSe2
Fe PyriteFeS2
SeSelenium
Se FerroseliteFeSe2
UUranium
U AutuniteCa(UO2)2(PO4)2 · 10-12H2O
U CarnotiteK2(UO2)2(VO4)2 · 3H2O
U CoffiniteU(SiO4) · nH2O
U LiebigiteCa2(UO2)(CO3)3 · 11H2O
U Uraninite var. PitchblendeUO2
U SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
U TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
U UraniniteUO2
U UranophaneCa(UO2)2(SiO3OH)2 · 5H2O

Localities in this Region

Other Regions, Features and Areas containing this locality


This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 4, 2026 06:06:31 Page updated: June 22, 2026 15:39:27
Go to top of page