Mine detail: Mcdonald Mine

Previously called 'MaggieNorth Armenia'

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Location

Lat / long:

46.11139, -88.26337

Resource(M)

Primary:	Iron
Ore:	Hematite, Goethite, Limonite
Gangue:	Chert, Magnetite, Sericite, Chlorite

Production

Operation type:	Underground
Deposit type:	Secondary Enrichment
Production size:	Small
Development status:	Past Producer
First production started:	1909
Last production ended:	1913

Geology

Host type:	Iron Formation
Alteration processes:	Chert to hematite (goethite, limonite) in oxidation zones.

References

MRDS	W028631
DEP	10079374
Reference	{Deposit:: JAMES, H.L., DUTTON, C.E., PETTIJOHN, F.I., WIER, K.L., 1968, GEOLOGY AND ORE DEPOSITS OF THE IRON RIVER, CRYSTAL FALLS DISTRICT, IRON COUNTY, MICHIGAN. WASHINGTON, U.S. GOVT. PRINTING OFFICE, 1908. PP. 21-23, 88-110.}{Deposit:: LAKE SUPERIOR IRON ORE ASSOCIATION, 1938, LAKE SUPERIOR IRON ORES (1ST ED.): CLEVELAND, OHIO. P. 158.}{Deposit:: CROWELL,BENEDICT, AND MURRAY, C.B., INC., 1914, THE IRON ORES OF LAKE SUPERIOR (2ND ED.): CLEVELAND, OHIO. P. 206.}{Deposit:: JOHNSON, A.M. AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, IRON COUNTY, P. 253-254, MICHIGAN DEPARTMENT OF NATURAL RESOURCES,}
Reporter	Anderson, Arlene (M. Gere), Yeager, Keith (Cannon, W.), Sutphin, D.M., Mason Jr., G.T.