Empire iron mine

iron mine of asbestos in Marquette county, MI

Geologic information

Name of siteEmpire iron mine
Developmentiron mine
StateMI
CountyMarquette
Geographic location:-87.6, 46.4583
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Fibrous mineralA thin zone with one-quarter inch bands of finely fibrous blue-black riebeckite occurs near the base of the iron formation in a host rock of very fine-grained quartz-garnet-biotite"" (Heinrich, 1976, p. 185).
Associated mineralsmagnetite
chert
siderite
ankerite
minnesotaite
stilpnomelane
chlorite
biotite
Host rock typesiron-formation
Geologic map unit-87.6, 46.4583
Nearby scientific dataFind additional scientific data near this location

Reference information

Sliter, T.W., 1970, The Empire mine and mill, Palmer, Michigan, in Guidebook for field trips (Field excursions--Pleistocene, Devonian, Precambrian), in connection with Geological Society of America North-Central Section Meeting: Michigan Basin Geological Society, p. 165-170.
Heinrich, E.W., 1976, The mineralogy of Michigan: Michigan Department of Natural Resources, Geological Survey Division Bulletin 6, 225 p.