Commodities
PrimaryIron, Cobalt
SecondaryCopper, Gold, Sulfur, Silver
Commodity typeB
Deposit
Deposit typeContact Metamorphic
Model62: Skarn Fe
Deposit sizeY
Materials
Ore mineralsMagnetite, Pyrite, Chalcopyrite
GangueDiopside, Phlogopite, Garnet, Actinolite, Chlorite, Talc, Serpentine
Geology
Host rockCarbonate · Buffalo Springs Formation
Associated rockHornfels,Diabase · "Mill Hill Slate", "Blue Conglomerate", "York Haven Diabase Sheet"
Tectonic settingInterior Basin
AlterationPotassium Metasomatism
Economic & production
Development statusPast Producer
Identification
Deposit ID10069387
MRDS IDW006887
Alternate namesCornwall East and Open Pit, Cornwall Iron-Cobalt Deposit
RegionNA
Data scoreC
Coordinates40.26945, -76.40298
References
BILBREY, J. H., 1962, COBALT, A MATERIALS SURVEY: U.S. BUREAU OF MINES INFORMATION CIRCULAR 8130, P. 2, 26 AND 27.VHAY, J.S., BROBST, DONALD A., AND HEYL, A. V., 1973, COBALT: (CHAPTER IN) U.S. MINERAL RESOURCES, U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 820, P. 145.LAPHAM, D.M., 1968, TRIASSIC MAGNETITE AND DIABASE AT CORNWALL, PENNSYLVANIA: IN RIDGE, J.D., ED., ORE DEPOSITS OF THE UNITED STATES 1933-1967 (GRATON-SALES VOLUME) V. 1: AMERICAN INSTITUTE OF MINING, METALLURGICAL AND PETROLEUM ENGINEERS, P. 72-94.ROSE, A.W. AND SMITH, R.C., II, 2001, MAGNETITE-CU SKARNS FORMED BY NON-MAGMATIC (?) FLUIDS AT CORNWALL, PA AND VICINITY [ABSTRACT]: GEOLOGICAL SOCIETY OF AMERICA ANNUAL MEETING; PAPER NO. 2-O.GRAY, C., GEYER, A.R., AND MCLAUGHLIN, D.B., 1958, RICHLAND QUADRANGLE: PENNSYLVANIA GEOLOGICAL SURVEY, 4TH SERIES, GEOLOGICAL ATLAS OF PENNSYLVANIA, ATLAS 167D, 1:24,000.