A small northeast-trending shallow mine near Cave-in-Rock with a shaft that was between 15 and 60 feet. The mine was located in T. 12 S., R. 9 E., Section 13, W1/2, SW1/4, NE1/4. The operator of the mine in 1940 was W.T. Winn (Weller et al., 1952)

Weller et al. (1952) reported that this property, along with the Frayser and Underwood properties were small, narrow replacement ore bodies that were mined at three levels within a vertical zone of about 30 feet in the basal part of the Fredonia limestone. Production here was at a small scale. The majority of the rock was weathered “gravel spar”.

Weller et al. (1952) noted that the Winn, Underwood, Rogers and Frazer properties lie outside of the principal mineralized belt of the Cave-in-Rock District.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

ⓘ Fluorite

1 valid mineral.

Detailed Mineral List:

ⓘ Fluorite

Formula: CaF₂

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
ⓘ	Fluorite	3.AB.25	CaF₂

List of minerals for each chemical element

F	Fluorine
F	ⓘ Fluorite	CaF₂
Ca	Calcium
Ca	ⓘ Fluorite	CaF₂

Other Regions, Features and Areas containing this locality

North AmericaContinent

North America PlateTectonic Plate

Granite-Rhyolite ProvinceMagmatic Province
Illinois BasinBasin
Shawnee DomainDomain

USA

Illinois-Kentucky Fluorspar DistrictMining District
Illinois
- Hardin County
  - Cave-in-Rock Mining Sub-DistrictMining Sub-district
Rough Creek GrabenBasin

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

Weller, J. Marvin, Grogan, Robert M., Tippie, Frank E. (1952) Geology of the Fluorspar Deposits of Illinois. Bulletin 76. Illinois State Geological Survey

Baxter, James W., Potter, Paul Edwin, Doyle, F.L. (1963) Areal geology of the Illinois fluorspar district : Part I, Saline Mines, Cave in Rock, Dekoven, and Repton Quadrangles. Circular 342. Illinois State Geological Survey

Denny, F. Brett, Nelson, W. John, Breeden, Jeremy R., Lillie, Ross C. (2020) Mines in the Illinois portion of the Illinois-Kentucky Fluorspar District. Circular 604. Illinois State Geological Surveyp.59

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