Mine detail: Empire

Previously called 'Palmer Operations'

<< Back to the map

Location

Lat / long: 46.4444, -87.59722

Resource(M)

Primary: Iron
Other material: Aegirine, Ankerite, Apatite, Arsenopyrite, Biotite, Chalcopyrite, Chert, Chlorite, Crocidolite, Cummingtonite, Goethite, Hematite, Ilmenite, Magnetite, Manganite, Martite, Microcline, Monazite, Olivine, Orthoclase, Plagioclase, Pyrite, Pyroxene, Pyrrhotite, Quartz, Riebeckite, Siderite, Stilpnomelane, Tourmaline, Zircon
Discovery year: 1887

Production

Operation type: Surface
Development status: Producer
First production started: 1907

Geology

References

MRDSW001394
MAS261030003
DEP10170458
Reference{Deposit:: BOYUM, B. H. THE MARQUETTE MINERAL DISTRICT OF MICHIGAN.}{Deposit:: 21ST ANN. INST. ON LAKE SUPERIOR GEOLOGY, ISHPEMING,}{Deposit:: MICHIGAN, APRIL 30 - MAY 4, 1975. NORTHERN MICHIGAN}{Deposit:: UNIVERSITY, ISHPEMING, MICHIGAN, 1975, 59 PP.}{Deposit:: THE CLEVELAND-CLIFFS IRON COMPANY. 1979 FORM 10-K. P. 9.}{Deposit:: PP. 6, 9, 40.}{Deposit:: SKILLINGS, D. N., JR. CLEVELAND-CLIFFS FURTHER EXPANSION OF}{Deposit:: EMPIRE MINE. SKILLING*MIN. REV., V. 65, NO. 40,}{Deposit:: OCTOBER 2, 1976, PP. 10 - 13.}{Deposit:: THOMAS, R. EMPIRE VERGES ON FOURTH EXPANSION SUCCESS.}{Deposit:: ENG. AND MIN. J., V. 180, NO. 9, SEPTEMBER 1979,}{Deposit:: PP. 128 - 133.}{Deposit:: SKILLINGS MINING REVIEW JULY 30, 1988, P18:}{Reserve-Resource:: CLEVELAND-CLIFFS INC. SEC FORM 10-K REPT, 12/31/93, P. 6.}
ReporterGeroyan, Rena