Vote for your favorite mineral in #MinCup26! - Cuprite vs. Orpiment
It's a fiery match of vibrant red Cuprite and just as saturated orange Orpiment battle for your votes!
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

Calcite from
Knight Mine, Hardin County, Illinois, USA


03419340017369804923708.jpg
Calcite, etc.

Knight Mine, Hardin County, Illinois, USA
00291720017370532179578.jpg
Calcite

Knight Mine, Hardin County, Illinois, USA
00274580017369804923854.jpg
Calcite

Knight Mine, Hardin County, Illinois, USA
04746120017272276372329.jpg
Calcite

Knight Mine, Hardin County, Illinois, USA
05848130017369683937845.jpg
Calcite, etc.

Knight Mine, Hardin County, Illinois, USA
02376590017272276324668.jpg
Calcite

Knight Mine, Hardin County, Illinois, USA
06999220017272276342092.jpg
Calcite

Knight Mine, Hardin County, Illinois, USA
07787380017272276322912.jpg
Calcite

Knight Mine, Hardin County, Illinois, USA
04950410017370532173452.jpg
Calcite, etc.

Knight Mine, Hardin County, Illinois, USA
02376590017272276324668.jpg
Calcite

Knight Mine, Hardin County, Illinois, USA
06613850017370532175269.jpg
Calcite

Knight Mine, Hardin County, Illinois, USA
04746120017272276372329.jpg
Calcite

Knight Mine, Hardin County, Illinois, USA
Locality type:Mine
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Fluorite7
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Knight Mine, Hardin County, Illinois, USA
Photo GalleryView Gallery (9 photos)
Data Identifiers
Mindat Occurrence Record ID:1018222
Long-form Identifier:1:3:1018222:4
GUID (UUID V4):0
Nearest other occurrences of Calcite
0.7km (0.5 miles) ⓘGood Hope Mine (Good Hope-Extension Mine), Rosiclare, Hardin County, Illinois, USA
0.7km (0.5 miles) ⓘAnnex Mine, Rosiclare, Hardin County, Illinois, USA
0.7km (0.5 miles) ⓘFairview Mine - Blue Diggings Fault, Hardin County, Illinois, USA
1.2km (0.7 miles) ⓘBlue Diggings Mine, Rosiclare, Hardin County, Illinois, USA
1.2km (0.7 miles) ⓘArgo Mine, Hardin County, Illinois, USA
1.5km (0.9 miles) ⓘAlcoa Mine, Rosiclare, Hardin County, Illinois, USA
1.8km (1.1 miles) ⓘRosiclare Mine, Rosiclare, Hardin County, Illinois, USA
2.3km (1.5 miles) ⓘDaisy Mine - Daisy vein No. 2 shaft, Rosiclare, Hardin County, Illinois, USA
2.7km (1.7 miles) ⓘHillside Mine, Rosiclare, Hardin County, Illinois, USA
2.9km (1.8 miles) ⓘDimmick Mine (Dimick Mine; Dimmick Prospect Shaft No. 2), Hardin County, Illinois, USA
References
Bastin, Edson S. (1931) The Fluorspar Deposits of Hardin and Pope Counties, Illinois. Bulletin 58. Illinois State Geological Survey
 
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 5, 2026 07:53:14
Go to top of page