Mine detail: Douglas Mine

Previously called 'Douglas Mines'

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Location

Lat / long:

37.51924, -88.42365

Resource(N)

Primary:	Fluorine-Fluorite
Ore:	Fluorite, Galena, Sphalerite
Gangue:	Calcite, Quartz

Production

Operation type:	Unknown
Production size:	Yes
Development status:	Past Producer

Geology

Host type:	Limestone
Structure:	Sycamore Vein
Tectonic:	Gentle Regional Structural Slope Northward Into Illinois Basin Is Broken By The Tw0-Mile-Wide Rock Creek Graben.

References

MRDS	W062561
DEP	10083059
Reference	{Deposit:: 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.}{Deposit:: BASTIN, E.S., 1931, THE FLUORSPAR DEPOSITS OF HARDIN AND POPE COUNTIES, ILLINOIS: ILLINOIS STATE GEOLOGICAL SURVEY BULLETIN 58, 116 P.}{Deposit:: 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.}{Production:: WELLER AND OTHERS, 1952, P. 137.}
Reporter	Sutphin, David M., Mason Jr., G.T.