Mercur

The Mercur is a gold mine located in Tooele county, Utah at an elevation of 7,001 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

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Mercur

Commodity

Primary: Gold
Secondary: Silver

Location

State: Utah
County: Tooele
District: Mercur 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

Type: Patented

Workings

Type: Surface

Ownership

Owner Name: Barrick Gold Corp. (American Barrick Resources Corp.)
Percent: 100.0
Home Office: Canada
Info Year: 1995
Years: 1995 -

Production

Year: 1983
Description: 1,114 Kgs Gold Produced From 628010 Mt/Yr Ore Mined
Year: 1986
Description: 3,453 Kgs Gold Produced From 1878880 Mt/Yr Ore Mined
Year: 1995
Description: Ore Processed 0.065 Oz/St 1910100 St/Yr
Year: 1993
Description: Gold Production 114761 Tr Oz
Year: 1994
Description: Ore Milled @ 0.063 Oz/St 1952800 St Ore
Year: 1993
Description: Silver Produced 400000 Tr Oz
Year: 1994
Description: Gold Production 108100 Tr Oz
Year: 1994
Description: Silver Produced 410000 Tr Oz
Year: 1995
Description: Silver Produced 413587 Tr Oz
Year: 1996
Description: Ore Processed 0.053 Oz/St 2032800 St/Yr
Year: 1996
Description: Gold Produced 82600 Tr Oz/Yr
Year: 1993
Description: Ore Processed @ 0.074 Oz/St 1761700 St Ore
Year: 1987
Description: 3,368 Kgs Gold Produced From 2305770 Mt/Yr Ore Mined
Year: 1988
Description: 3,589 Kgs Gold Produced From 2881870 Mt/Yr Ore Mined
Year: 1989
Description: Silver Produced 40905 Tr Oz
Year: 1989
Description: 3,655 Kgs Gold Produced From 1486000 Mt/Yr Ore Mined
Year: 1990
Description: Silver Produced 229000 Tr Oz
Year: 1990
Description: 3,959 Kgs Gold Produced 1661000 Mt/Yr Ore Mined
Year: 1991
Description: Silver Produced 189000 Tr Oz
Year: 1991
Description: 3,796 Kgs Gold Produced 1661000 Mt/Yr Ore Mined
Year: 1992
Description: Ore Processed @ 0.075 Oz/St 1796400 St/Yr
Year: 1992
Description: Silver Produced 313000 Tr Oz
Year: 1992
Description: Gold Produced 121200 Tr Oz
Year: 1984
Description: 2,460 Kgs Gold Produced From 933900 Mt/Yr Ore Mined
Year: 1985
Description: 2,919 Kgs Gold Produced From 1117710 Mt/Yr Ore Mined
Year: 1995
Description: Gold Production 101700 Tr Oz

Deposit

Record Type: Site
Operation Category: Plant
Plant Type: Leach
Operation Type: Surface
Mining Method: Open Pit
Milling Method: Carbon-In-Leach-Electrowin
Year First Production: 1871
Discovery Year: 1870
Years of Production:
Organization:
Significant: Y
Deposit Size: S

Physiography

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

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Not available

Comments

Comment (Economic Factors): MINING STOPPED MARCH 27, 1997: PROCESSING MILL WILL RUN TILL LATE 1998; RECLAMATION WILL LAST TILL 2010: OPERATION WILL BE CONSIDERED A PRODUCER TILL PROCESSING MILL IS SHUT DOWN IN IN LATE 1998: PROVEN+PROBABLE ORE RESERVES (INCLUDES 2,359,000 MT @ 1.82 G/MT AU - OF THE GOLDEN GATE TAILINGS); PRODUCTION BASED ON AVG OF 1992 TO 1996 PRODUCTION: ORE IS MINED FROM 4 PITS: MARION HILL, MERCUR HILL, GOLDEN GATE & SACRAMENTO HILL. THESE 4 PITS HAVE A MIX OF OXIDIZED ORE OR REFRACTORY ORE. OXIDIZED (OXIDE) ORE IS ORE THAT IS SENT TO A CARBON-IN-LEACH (C-I-L) CIRCUIT AFTER BEING CRUSHED AND GROUND. REFRACTORY OR SULFIDE GOLD ORE MUST BE FIRST PROCESSED IN AN AUTOCLAVE CIRCUIT AFTER BEING CRUSHED AND GROUND AND BEFORE BEING SENT TO A C-I-L CIRCUIT. OXIDE ORE THAT HAS A GRADE BELOW 1.37 G/MT AU AND A CUTOFF OF 0.86 G/MT AU IS SENT TO THE DUMP LEACH. THIS ORE IS CLASSIFIED AS OXIDE SUBORE THE STOCKPILED OXIDE ORE (MATRIX 2) IS BLENDED WITH THE MINED OXIDE ORE. THE GOLDEN GATE TAILS (MATRIX 5, ORIGINALLY CLASSIFIED AS REFRACTORY ORE) WILL BE PROCESSED BY A HOT WATER LEACH PROCESSED IN THE MILL AFTER THE IN-PLACE ORE AND STOCK- PILED ORE RESERVES ARE EXHAUSTED. THE TAILS CONTAIN CYANIDE PRECIPITATES FROM BEING PROCESSED IN THE PAST. HOT-WATER WILL PLACE THE CYANIDE INTO SOLUTION AND THIS SOLUTION WILL IN TURN DISSOLVE THE GOLD IN THE C-I-L CIRCUIT.

Comment (Production): 1988 PROD.=116,000 OZ. AU; 1988 RESERVE= 1,512,000 OZ. CONT.AU. 1988 PROD.= 116,000 OZ. 1989 PROD. = 117,536 OZ FROM TREATING

Comment (Deposit): THE DIMENSIONS GIVEN IN THIS RECORD IS THE AVERGE DIMENSION FOR FOUR SEPARATE OREBODIES (MERCUR HILL, MARION HILL GOLDEN GATE, & SACRAMENTO HILL).

Comment (Geology): DEPOSITS ARE REPLACEMENT DEPOSITS IN SHALE OF THE UPPER GREAT BLUE LIMESTONE. CARBONATES ARE HYDROTHERMALLY ALTERED TO FORM JASPEROID, QUARTZ SERICITE, AND KAOLINITE. MUCH OF THE MINERALIZED HOST ROCK IS OXIDIZED; THE BALANCE IS REFRACTORY ORE.

Comment (Reserve-Resource): MINING STOPPED MARCH 27, 1997: PROCESSING MILL WILL RUN TILL LATE 1998; RECLAMATION WILL LAST TILL 2010: OPERATION WILL BE CONSIDERED A PRODUCER TILL PROCESSING MILL IS SHUT DOWN IN IN LATE 1998: PROVEN+PROBABLE ORE RESERVES (INCLUDES 2,359,000 MT @ 1.82 G/MT AU - OF THE GOLDEN GATE TAILINGS); PRODUCTION BASED ON AVG OF 1992 TO 1996 PRODUCTION:

Comment (Economic Factors): DEPOSITS ARE REPLACEMENT DEPOSITS IN SHALE OF THE UPPER GREAT BLUE LIMESTONE. CARBONATES ARE HYDROTHERMALLY ALTERED TO FORM JASPEROID, QUARTZ SERICITE, AND KAOLINITE. MUCH OF THE MINERALIZED HOST ROCK IS OXIDIZED; THE BALANCE IS REFRACTORY ORE. FEED RECS 1101 AND 1102: ARE THE BLENDED FEEDS FROM MATRICES 7 & 8 THAT ARE THE COMBINED OXIDE AND REFRACTORY ORES FROM THE MINE AND STOCKPILES.

Comment (Geology): ACCORDING TO RANDOL MINING DIRECTORY 1996-97, MERCUR HAS A 5 YEAR REMAINING MINE LIFE AND CLOSURE IS EXPECTED TO BEGIN IN 3 YEARS FOLLOWING THE DEPLETION OF ALL OPEN PIT RESERVES. MILL METHODS INCLUDE OXIDE MILL CIRCUIT, REFRACTORY ORE MILL CIRCUIT, AND HEAP LEACH.

Comment (Production): 1,485,390 MT ORE. 1989 RESERVE = 1,117,000 CONT.OZ AU. TRANSPORTATION COST OF GOLD-SILVER DORE FROM MILL TO REFINERY INCLUDED IN MILL OP COSTS THE YIELD AND RECOVERY FOR THE AU & AG IS AN AVERAGE FOR THE MILL FEED OF OXIDE AND REFRACTORY ORES BEING PROCESSED IN THE MILL. RECOVERIES FOR PA ARE: AU AND AG - 78.7% GRADES: 84.87% AU AND 15.13% AG. GRADES FOR PB: 83.35% AU AND 16.65% AG

Comment (Economic Factors): 1,485,390 MT ORE. 1989 RESERVE = 1,117,000 CONT.OZ AU. TRANSPORTATION COST OF GOLD-SILVER DORE FROM MILL TO REFINERY INCLUDED IN MILL OP COSTS

Comment (Reserve-Resource): 1,485,390 MT ORE. 1989 RESERVE = 1,117,000 CONT.OZ AU.

Comment (Ownership): MERCUR MINE ADDRESS: BARRICK GOLD CORP. P.O. BOX 838 MERCUR CANYON ROAD TOOELE, UT 84074-0838 CORPORATE HEADQUARTERS ADDRESS: BARRICK GOLD CORP. ROYAL BANK PLAZA SOUTH TOWER, SUITE 2700 200 BAY STREET P.O. BOX 119 TORONTO, ON M5J 2J3

References

Reference (Deposit): MERCUR GOLD OPERATION IN UTAH. SKILLINGS MINING REVIEW,

Reference (Deposit): APRIL 23, 1983, PP. 4-9.

Reference (Deposit): BURGER, J. R. MERCUR IS GETTY'S FIRST GOLD MINE. E&MJ,

Reference (Deposit): OCTOBER 1983, PP. 48-51.

Reference (Deposit): TURK, T. W., & S. A. SASS. ENGINEERING DESIGN OF THE MERCUR

Reference (Deposit): GOLD PROJECT ORE PROCESSING FACILITY. MINING ENGR.

Reference (Deposit): MAG. NOV. 1984, PP. 1563-1567.

Reference (Deposit): AMERICAN BARRICK CORP. MERCUR GOLD MINE COMPANY FACT

Reference (Deposit): SHEET. NOVEMBER 1985, 10 PP.

Reference (Deposit): WICKS, FRANK D. THE BARRICK MERCUR GOLD MINE. MINING

Reference (Deposit): MAGAZINE, NOVEMBER 1987, PP. 398-405.

Reference (Geology): OF GEOLOGICAL SOCIETY OF NEVADA: BULK MINEABLE

Reference (Geology): PRECIOUS METAL DEPOSITS OF THE WESTERN U.S APRIL 6-8,

Reference (Geology): 1987, PP. 381-388.

Reference (Production): BARRICK GOLD CORP., 1996 FORM 40-F REPORT, P35.

Reference (Production): NEVADA BUREAU OF MINES AND GEOLOGY, SPECIAL PUBLICATION MI-

Reference (Production): 1995, "THE NEVADA MINERAL INDUSTRY 1995", PP53.

Reference (Reserve-Resource): AMERICAN BARRICK RESOURCES CORP., 1993 ANNUAL REPORT, P.27.

Reference (Reserve-Resource): BARRICK GOLD CORP., 1994 ANNUAL REPORT, P.36.

Reference (Reserve-Resource): BARRICK GOLD CORP., 1995 ANNUAL REPORT, P.27.

Reference (Reserve-Resource): BARRICK GOLD CORP., 1995 FORM 40-F REPORT, PP. 12, 33.

Reference (Reserve-Resource): BARRICK GOLD CORP., 1996 FORM 40-F REPORT, PP. 12, 36.

Reference (Reserve-Resource): BARRICK GOLD CORP., 1996 ANNUAL REPORT, P36.

Reference (Deposit): SKILLINGS, D. N., JR. GETTY MINING CO. STARTING UP ITS

Reference (Deposit): ENGINEERING AND MINING JOURNAL. MERCUR STARTS UP ITS NEW

Reference (Deposit): ALKALINE PRESSURE-OXIDATION AUTOCLAVE PLANT. JUNE 1988,

Reference (Deposit): PP. 26-31.

Reference (Deposit): SOUTHWESTERN PAYDIRT, N 694, APRIL 1997, P15.

Reference (Deposit): AMERICAN BARRICK RESOURCES CORP., 1992 ANNUAL REPORT, P.43.

Reference (Geology): KORNZE, L. D. GEOLOGY OF THE MERCUR GOLD MINE. SYMPOSIUM

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