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

Volga River, Volga, Clayton County, Iowa, USAi
Regional Level Types
Volga RiverRiver
VolgaVillage
Clayton CountyCounty
IowaState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
04923570017272073224604.jpg
Pyrite

Volga River, Volga, Clayton County, Iowa, USA
04923570017272073224604.jpg
Pyrite

Volga River, Volga, Clayton County, Iowa, USA
07975920017272073223201.jpg
Pyrite

Volga River, Volga, Clayton County, Iowa, USA
Latitude & Longitude (WGS84):
42° North , 91° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~1km
GRN:
N29W49
Type:
River
Köppen climate type:
Dfa : Hot-summer humid continental climate
Mindat Locality ID:
44554
Long-form identifier:
mindat:1:2:44554:3
GUID (UUID V4):
0


Just upstream of abandoned dam

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

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

7 valid minerals.

Detailed Mineral List:

ⓘ Calcite
Formula: CaCO3
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ Fluorite
Formula: CaF2
ⓘ Gold
Formula: Au
ⓘ Marcasite
Formula: FeS2
ⓘ 'Petroleum var. Bitumen'
ⓘ Pyrite
Formula: FeS2
ⓘ Sphalerite
Formula: ZnS

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘGold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘPyrite2.EB.05aFeS2
ⓘMarcasite2.EB.10aFeS2
Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘDolomite5.AB.10CaMg(CO3)2
Unclassified
ⓘ'Petroleum
var. Bitumen'		-

List of minerals for each chemical element

CCarbon
Cⓘ CalciteCaCO3
Cⓘ DolomiteCaMg(CO3)2
OOxygen
Oⓘ CalciteCaCO3
Oⓘ DolomiteCaMg(CO3)2
FFluorine
Fⓘ FluoriteCaF2
MgMagnesium
Mgⓘ DolomiteCaMg(CO3)2
SSulfur
Sⓘ MarcasiteFeS2
Sⓘ PyriteFeS2
Sⓘ SphaleriteZnS
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ DolomiteCaMg(CO3)2
Caⓘ FluoriteCaF2
FeIron
Feⓘ MarcasiteFeS2
Feⓘ PyriteFeS2
ZnZinc
Znⓘ SphaleriteZnS
AuGold
Auⓘ GoldAu

Localities in this Region

USA

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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.

References

Brown, C. Ervin (1967) Fluorite in crystal-lined vugs in the Maquoketa Shale at Volga, Clayton County, Iowa. American Mineralogist, 52 (11-12) 1735-1750
Quick NavTopMineral ListLocalities in RegionOther RegionsReferences
 
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 03:18:40 Page updated: July 23, 2025 18:50:48
Go to top of page