Ibex Mine

The Ibex Mine is a gold, silver, and copper mine located in Juab county, Utah at an elevation of 6,526 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

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Site Name

Primary: Ibex Mine

Commodity

Primary: Gold
Primary: Silver
Primary: Copper
Secondary: Bismuth

Location

State: Utah
County: Juab
District: Detroit District

Land Status

Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Not available

Workings

Type: Surface/Underground

Ownership

Owner Name: Utah Central Mining Co.
Years: 1934 -

Production

Year: 1941
Material type: CU
Description: Ap_Grade: ^Jan-Feb. 1934 Ave. 0.395% Cu
Year: 1941
Material type: AU
Description: Ap_Grade: ^Ave 0.195 Oz/Ton

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1894
Discovery Year: 1878
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Great Basin
Physiographic Detail: Drum Mountains

Mineral Deposit Model

Not available

Orebody

Form: IRREGULAR PIPE OR CHIMNEY 350 FT LONG

Structure

Type: R
Description: Drum Mtns Homocline Strikes N 20 E And Dips 30 Deg. Sw

Type: L
Description: Ibex Fault (N 45 E At 60 Deg Se) Droping The Ore Body About 50 Ft To The South

Alterations

Not available

Rocks

Name: Tuff
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene

Name: Tuff
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Cambrian

Name: Tuff
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Name: Tuff
Role: Associated
Age Type: Host Rock
Age Young: Late Cambrian

Analytical Data

Analytical Data: SOUTH 1/2 OF DUMP: 1.77% CU, 1.00 OZ AG, 0.25 OZ AU: RAISE IN STOPE ABOVE MIDDLE TUNNEL: 2.3% CU, 3.10 OZ AG, 0.51 OZ AU
Analytical Data: NORTH 1/2 OF DUMP AT UPPER TUNNEL: 2.1% CU, 0.70% AG, 0.30 OZ AU
Analytical Data: GRAB SAMPLE BELOW TUNNEL LEVEL: 2.9% CU, 2.8 OZ AG, 0.62 OZ AU: ASSORTED ORE FOR SHIPMENT FROM DUMP: 4.15% CU, 3.4 OZ AG, 0.60 OZ AU

Materials

Ore: Gold

Comments

Comment (Development): THE UTAH GEOL. & MIN. SURVEY HAS THE ORIGINAL REPORT OF GUY CRANE IN ITS FILES. THE REPORT CONTAINS MINE MAPS, SURVEYS, GEOLOGY REPORTS OF OTHER GEOLOGISTS, ASSAYS AND OTHER INFORMATION.

Comment (Workings): MINE WORKINGS CONSIST OF A LOWER TUNNEL ABOUT 720 FT LONG, AN UPPER TUNNEL ABOUT 300 FT LONG & AN INCLINE STOPE EXTENDING SW ABOUT 350 FT MAKING CONNECTION WITH BOTH LOWER & UPPER TUNNEL LEVELS. THE UPPER TUNNEL IS 92 FT BELOW THE SURFACE, AND THE LOWER TUNNEL IS 165 FT BELOW UPPER TUNNEL.

Comment (Commodity): TYPICAL ORE CONSISTS OF CRYSTALIZED CALCITE MATRIX ENCLOSING BOULDERS OF DENSE DARK SILICIOUS AU-CU ORE TOGETHER WITH ANGULAR BOULDERS OF LS AND A FEW ROUNDED PEBLES OF PROSPECT MTN QUARTZITE. BEST AU VALUES ARE FOUND IN THE DARK SILICIOUS BOULDERS WITH CALCITE MATRIX.

Comment (Production): GOLD-COPPER ORE IN ITEM #8 WAS SHIPPED TO LEAMINGTON. IT IS REPORTED THAN NO ORE CONTAINING LESS THAN 1 OZ OF AU WAS SHIPPED BECAUSE OF HIGH TRANSPORTATION CHARGES AND THAT $100-200 ORE WAS COMMON PRODUCTION YEARS: 1895, 1904, 1909-1917, 1934-1951. ELEVEN CAR LOADS IN 1901. THE CARLOADS GAVE $22.50 IN AU, 2.45 OZ AG, AND 2.4% CU, UP TO $39.20 IN AU, 4.5 OZ AG, & 14.5% CU GROSSING $32.40 TO $45.38/TON. AT 1979 PRICES IT WOULD GROSS $2500/TON

Comment (Reserve-Resource): ESTIMATED 100,000 TONS OF ORE IN LOWER WORKINGS

Comment (Location): SECTION SUBDIVISIONS NW 1/4 SW 1/4 NW 1/4 THE IBEX IS IMPROPERLY MARKED ON TOPO MAP.

References

Reference (Analytical Data): SRC.REF: 1916 REPORT (GEN. REF. #4) ANALYTICAL (GENERA)

Reference (Deposit): CRANE, G.W., 1934, GEOLOGY AND EVALUATION OF COMPANY HOLDINGS IN THE DETROIT DISTRICT: REPORT TO MR. FRANK SYLVESTER, PRESIDENT OF UTAH CENTRAL MINES COMPANY FROM G.W. CRANE, CONSULTING GEOLOGIST, MARCH 15, 1934, MAPS, SURVEYS, ASSAYS, ETC.

Reference (Deposit): 1920 RECON BUTLER, B.S., USGS PP 111

Reference (Deposit): 1961 RECON CRITTENDEN, M.D., USGS BULL. 1082-H

Reference (Production): CRANE, G.W., 1934, UNPUBLISH REPORT: UTAH CENTRAL MINES CO.

Reference (Deposit): USBM MINERAL YEARBOOK: 1934, P. 276; 1935, P. 332; 1939, P. 473; 1940, P. 453, 456; 1941, P. 464; 1945, P. 467, 470.

Reference (Deposit): CRANE, GUY W., 1934, REPORT ON HOLDINGS OF UTAH CENTRAL MINING CO., PRIVATE RPT, 33 P.

Reference (Deposit): WILLIAMS, JOHN, 1901, ENGINEERS REPORT ON THE IBEX MINE: PRIVATE COMPANY REPORT.

Reference (Deposit): FARRISH, W.A., 1916, REPORT ON IBEX MINE: PRIVATE CO. RPT., 12 P.

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