Mine detail: Cornwall Copper Mine

Previously called 'Chicago'

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Location

Lat / long:

37.90228, -90.14871

Resource(M)

Primary:	Copper
Ore:	Chalcocite, Chalcopyrite, Cuprite, Galena, Malachite, Tenorite
Gangue:	Calcite, Limonite
Discovery year:	1863

Production

Operation type:	Unknown
Production size:	Yes
Development status:	Past Producer
First production started:	1876

Geology

Host rock:	Jefferson City
Host type:	Dolomite
Structure:	Ste Genevieve Fault Zone; Farmington Anticline
Alteration processes:	Sericite, Replacement Of Silica

References

MRDS	D003570
DEP	10010088
Reference	{Deposit:: HEYL, A.V., BROCK, M.R., JOLLY, J.L., AND WELLS C.E., 1965 , REGIONAL STRUCTURE OF THE SOUTHEAST MISSOURI AND ILLINOIS-KENTUCKY MINERAL DISTRICTS, U.S. GEOLOGICAL SURVEY BULL. 1202-B, P. B1-B20.}{Deposit:: BAIN, H.F., AND ULRICH, E.O., 1905 , THE COPPER DEPOSITS OF MISSOURI: U.S. GEOLOGICAL SURVEY BULL. 267 , PP. 36 - 39 .}
Reporter	Sherwood, Liz