Mine detail: Bristol-Youngstown Mine

Previously called 'Claire MineClare Mine'

Location:	Iron County, Michigan, United States, North America
Lat / long:	46.10778, -88.34948
dep_id:	10110360
mrds_id:	W001401
Commodity type:	metallic
Major mineral:	Iron
Operation type:	Surface-Underground
Deposit type:	Secondary Enrichment
Production size:	Unknown
Development status:	Past Producer
ore:	Hematite, Goethite
gangue:	Chert, Pyrite, Siderite, Stilpnomelane, Chlorite, Mica
orebody_fm:	STRATABOUND
work_type:	Surface/Underground
model:	241: Superior Fe (BC name is Lake Superior & Rapitan types iron-formation)
alteration:	Chert and siderite to hematite and goethite in oxidation zones
ore_ctrl:	Structurally controlled on flank of anticline.
Reporter:	Cannon, Suzanne S., Yeager, Keith (Cannon, W.), Sutphin, D.M., Mason Jr., G.T., Anderson, Arlene (M. Gere)
hrock_unit:	Negaunee Iron-Formation
hrock_type:	Iron Formation
Structure:	Major troughs ; regional trends: E-W, NW-SE, NE-SW, forming triangle, Troughs into which Iron formation has slumped.
Year first produced:	1890
yr_lst_prd:	1969
References:	Deposit:: MINERAL INDUSTRY OF MICHIGAN, 1969; 1971 ANNUAL STATISTICAL SUMMARY 13 U. S. B. M. 1969 MINERALS YEARBOOK. Deposit:: JAMES, DUTTON, PETTIJOHN, AND WIER, 1968, GEOL. AND ORE DEPOSITS OF THE IRON RIVER - CRYSTAL FALLS DIST., U. S. G. S. PROF. PAPER 570, P. 134 Deposit:: JAMES, H. L., 1955, ZONES OF REGIONAL METAMORPHISM IN THE PRECAMBRIAN OF NORTHERN MICH., G. S. A. BULL., V. 66, P. 1455-1488. Deposit:: DUTTON, C. E. AND P. W. ZIMMER, 1968, IRON ORE DEPOSITS - MENOMINEE DIST., MICH., IN ORE DEP. U. S. 1933-1967, THE GRATON-SALES VOL., J. D. RIDGE, ED., V. 1, P. 538-549. Deposit:: JAMES, H. L., DUTTON, C. E., PETTIJOHN, F.JAMES, H. L., DUTTON, C. E., PETTIJOHN, F. J., WIER, K. L., 1968, GEOLOGY AND ORE DEPOSITS OF THE IRON RIVER, CRYSTAL FALLS DISTRICT, IRON COUNTY, MICHIGAN. WASHINGTON, U.S. GOVT. PRINTING OFFICE, 1968, PP. 45-56, 88-110. Deposit:: LAKE SUPERIOR IRON ORE ASSOCIATION, 1952, LAKE SUPERIOR IRON ORES (2ND ED.): CLEVELAND, OHIO. P. 109. Deposit:: CROWELL, BENEDICT, AND MURRAY, C. B., INC., 1911, 1914, 1920, 1923, 1927, 1930, THE IRON ORES OF LAKE SUPERIOR (1ST, 2ND, 4TH, 5TH, 6TH AND 7TH EDS.): CLEVELAND, OHIO. PP. 105-106; 188-189; 219-220; 269-270; 289-290; 260 RESPECTIVELY. Deposit:: HANNA, T. A., 1902, STATE OF MICHIGAN MINES AND MINERAL STATISTICS, MARQUETTE, MICHIGAN. P. 79. Deposit:: JOHNSON, A.M. AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, IRON COUNTY, P. 41-45, MICHIGAN DEPARTMENT OF NATURAL RESOURCES. Production:: THE MINERAL INDUSTRY OF MICHIGAN, 1969; 1971, P. 10