| Lat / long: | 40.17112, -75.87907 |
| Primary: | Iron, Cobalt |
| Secondary: | Copper, Gold |
| Ore: | Magnetite, Pyrite, Chalcopyrite |
| Gangue: | Serpentine, Talc, Chlorite, Calcite, Dolomite, Phlogopite, Tremolite, Biotite |
| Orebody form: | TABULAR |
| Discovery year: | 1948 |
| Operation type: | Unknown |
| Deposit type: | Replacement |
| Production size: | Yes |
| Development status: | Past Producer |
| Production years: | 1958-PRESENT |
| First production started: | 1958 |
| Host rock: | Elbrook Formation |
| Host type: | Carbonate |
| Associated rock: | Stockton Formation, Ledger Formation |
| Associated type: | Sandstone,Diabase,Dolomite |
| Structure: | Triassic basin regional trend NE-SW, Triassic Basin ; Reg.Trends: Northeast-Southwest |
| Tectonic: | Interior Basin |
| Alteration processes: | Contact Metamorphism/Hydrothermal Alteration |
| MRDS | W000153 |
| DEP | 10067406 |
| Reference | {Commodity:: ANDREWS, R.W., 1962, COBALT: OVERSEAS GEOLOGICAL SURVEYS, MINERAL RESOURCES DIVISION, LONDON, HER MAJEST* STATIONERY OFFICE.}{Commodity:: U.S. BUREAU OF MINES, 1975, COMMODITIES DATA SUMMARY.}{Deposit:: SIMS, S.J., 1968, THE GRACE MINE MAGNETITE DEPOSIT, BERKS COUNTY, 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. 108-124.}{Production:: ENGINEERING MINING JOURNAL 1972 INTERNATIONAL DIRECTORY OF MINING AND MINERAL PROCESSING: NEW YORK, MCGRAW-HILL, INC., P. 135.} |
| Reporter | Wright, Nancy , Coury, Anny B., Shaffer, Glenn L., Whitlow, S., Woodruff, Laurel G. |