Unknown

The Unknown is a mercury and gold mine located in Tooele county, Utah at an elevation of 6,900 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: Unknown

Commodity

Primary: Mercury
Primary: Gold
Secondary: Silver
Secondary: Arsenic
Tertiary: Iron
Tertiary: Antimony

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

Not available

Workings

Not available

Ownership

Owner Name: Getty Oil Co.

Owner Name: Consolidated Mercur Mines Co.

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1872
Year Last Production: 1907
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: L

Physiography

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

Mineral Deposit Model

Not available

Orebody

Form: IRREGULAR

Form: IRREGULAR

Structure

Type: R
Description: Basin And Range

Type: L
Description: Fissures, Fractures, Faults And Folds

Alterations

Alteration Type: L
Alteration Text: Dolomitization, Sericitization, Limonitization, Kaolimization, And Siliceitication

Rocks

Name: Limestone
Role: Host
Age Type: Host Rock
Age Young: Mississippian

Analytical Data

Not available

Materials

Ore: Realgar
Ore: Cinnabar
Ore: Orpiment
Ore: Stibnite
Ore: Pyrite
Gangue: Calcite
Gangue: Sericite
Gangue: Talc
Gangue: Quartz
Gangue: Chlorite

Comments

Comment (Location): INFO FROM LAND.ST :(1977)

Comment (Production): PRODUCTION FIGURES ARE NOT AVAILABLE; THE TOTRAL PRODUCTION OF GOLD WAS PROBABLY FOR ABOUT $500,000

Comment (Deposit): MINERALIZATION IS LOCALIZED IN ALTERED FONES IN WALLROCKS. UNALTERED ROCKS ARE BARREU. THE OCIDIZED ORE IS LIGHT COLOURED AND MORE FRIABLE THAN UNOXIDIZED (BASE) ORE. IT LACKS SULFIDES AND CONTAINS SULFATES INCLUDING GYPSUM, SCOXODITE, AND MELANTERITE

Comment (Workings): ORE VERTICAL SHAFT (100 FT. APPROX.); TWO ADITS; NINE INCLINES (35 DEG.): MINE WORKINGS ARE ALL CAVED AND INACCESSIBLE; TWO LARGE PITS OR 600X120X220, FT. AND 600X400X50 FT SIZE; SEVERAL OTHER PITS AND TRENCHES.

Comment (Geology): WALLROCKS ARE HIGHLY SHALTERED, FOLDED AND CRUMPLED. SHALES ARE BROUEN TO BUFF, PULVERIZED, FRIABLE, SERICITIC, EALERARIOUS, SOMETIMES EARBONERCEOUS AND KAOLIMITIE. LIMESTONES ARE BRECCIATED, DARK GRAY, DOLOMITE, SILICIFIED AND RINPREGNATED WITH VEINS OF CALCITE AND QUARTZ. ORE MINERALS ARE INTINUATELY ASSOCIATED WITH VEINS OF JASPEROID AND QUARTZ. LIMONITIE STAINS ARE COMMON ON WALLROCKS.

Comment (Deposit): THE ORE IS SOFT AND PULVERIZED, LIGHT YELLOWISH OR GREYISH IN COLOUR-GOLD IS NOT VISIBLE IN THE ORES, AND IS CONCENTRATED ONLY IN THE CARBON-RICH PORTIONS OF THE ALTERED ZONES. THE ORE IS FORMED BY THE IMPREGNATION AND REPLACEMENT OF THE WALLROCKS; AND THE FISSURE FILLINGS ARE NEGLIGIBLE. NEVERTHE LESS THESE FISSURES WERE OF FUNDEMENTAL IMPORTANCE IN LOCALIZING THE DEPOSITS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV

References

Reference (Deposit): BISSELL, H.J., ET. AL., 1959, GUIDEBOOK TO THE GEOLOGY OF UTAH, NO.14, UT. GEOL. SOC.; U.G.M.S. BULL. 14,262P.

Reference (Deposit): GILLULY, J., 1932, GEOLOGY AND ORE DEPOSITS OF THE STOCKTON AND FAIRFIELD QUADRANGLES: U.S.G.S. PROF. PA. 173,167P.

Reference (Deposit): BUTTLER, B.S., ER. AL., 1920, THE ORE DEPOSITS OF UTAH: U.S.G.S. PROF. PA. 111, 672P.

Reference (Deposit): SPURR,J.E., 1895, ECONOMIC GEOLOGY OF THE MERCUR MINING DISTRICT, UTAH: U.S.G.S. 16TH. ANN. REPT., PT. 2, 454P.

Reference (Production): SPURR, J.E., 1895, P. 422

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