Mine Index 10083037 Cache Mining Company, Underwood Mine

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	S-T-R	13(SENWSE)-12S-9E
	County:	Hardin
	Quadrangle:	Saline Mines
	District:	Fluorspar District
	Subdistrict:	Cave-in-Rock Subdistrict

Mine Index Number: 10083037

ISGS ID:		MSHA ID:
MAS ID:	170690101	MRDS ID:	W062530
Company Name:	Cache Mining Company
Mine/Site Name:	Underwood Mine
Active/Abandoned:	Abandoned
Start Date:	circa 1973	End Date:	Unknown
Commodity Type:	Non-Metallic
Commodity:	Fluorspar
Minerals Present:	Galena, Fluorite, Sphalerite
Type of Mine:
District:	Fluorspar District	Subdistrict:	Cave-in-Rock Subdistrict
County:	Hardin
Section/Township/Range:	13(SENWSE)-12S-9E
Latitude,Longitude:	37.5133999999998,-88.1847499999998
Unit(s) Mined:	Valmeyeran Series, Aux Vases Sandstone, Ste. Genevieve Limestone, St. Louis Sandstone
Feature(s) Mined:
MRDS Link:	https://mrdata.usgs.gov/mrds/show-mrds.php?dep id=10083037
Mindat link:

Discussion

GALENA AND SPHALERITE WERE MINOR.

Mineral occurrence model information
Model code	174
USGS model code	26b
Deposit model name	Fluorspar deposits (fluorite veins)

THE ORE BODY TRENDED N 58 E AND AVERAGED THREE FT THICK.

Overall depth 13.72M

GRAVEL SPAR WAS REPORTED ALSO.

References

U.S. BUREAU OF MINES, 1995, SPATIAL DATA EXTRACTED FROM THE MINERALS AVAILABILITY SYSTEM/MINERAL INDUSTRY LOCATION SYSTEM (MAS/MILS): U.S. BUREAU OF MINES SPECIAL PUBLICATION 12-95.

WELLER, J.M., GROGAN, R.M., AND TIPPIE, F.E., 1952, GEOLOGY OF THE FLUORSPAR DEPOSITS OF ILLINOIS: ILLINOIS STATE GEOLOGICAL SURVEY BULLETIN 76, 147 P.

WELLER J M ET AL ILL STATE GEOL SUR BULL 76 P 146

External Links

Mineral Resources Data System (MRDS) USGS Link
https://mrdata.usgs.gov/mrds/show-mrds.php?dep id=10083037 Also referenced as 10241843