Commodities
PrimaryCopper
TertiarySilver, Iron, Lead
Commodity typeM
Deposit
Deposit sizeY
Orebody formLENTICULAR CHIMNEY (BRECCIATED ORE)
Ore controlOpen Space And Limestone Strata Between Chert Layers. Vertical Fractures.
Materials
Ore mineralsChalcocite, Chalcopyrite, Cuprite, Malachite, Tenorite
GangueCalcite, Chert
Other materialsLimonite
Geology
Host rockLimestone,Chert · Powell Dolomite
StructureOzark Dome, Bedding Dips 5 Degree E. Faults Near By But Not At Mines.
AlterationDolomitization, Silicification
Economic & production
Development statusPast Producer
First production1876
Last production1916
Discovery year1863
Identification
Deposit ID10072186
MRDS IDW016772
Alternate namesCornwall, Chicago, Swansea, Herzog, Grass
RegionNA
Data scoreB
Coordinates37.90006, -90.1501
References
BAIN, H.F., AND ULRICH, E.D., 1905, COPPER DEPOSITS OF MISSOURI: USGS BULL. 267, P. 36-39.NICHOLSON, FRANK, 1882, A REVIEW OF THE STE. GENEVIEVE COPPER DEPOSITS: AIME, V. 10, P. 444-456.KINKEL, A.R., 1967, COPPER, IN MINERAL AND WATER RESOURCES OF MISSOURI: MISSOURI DIVISION OF GEOLOGICAL SURVEY AND WATER RESOURCES, V. 43, P. 63-68.WHARTON, H.M., MARTIN, J.A., RUEFF, A.W., ROBERTSON, C.E., WELLS, J.S., AND KISVARSANYI, E.B., 1969, MISSOURI MINERALS--RESOURCES, PRODUCTION, AND FORECASTS: MISSOURI GEOLOGICAL SURVEY AND WATER RESOURCES SPECIAL PUBLICATION NO. 1, P. 47 (45-50).BAIN AND ULRICH, 1905, P. 37.