Fraction Lode Mine

The Fraction Lode Mine is a tungsten mine located in Tooele county, Utah at an elevation of 5,981 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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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: Fraction Lode Mine
Secondary: Timm Mine

Commodity

Primary: Tungsten

Location

State: Utah
County: Tooele
District: Clifton (Gold Hill) District

Land Status

Land ownership: BLM Administrative Area
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: E. Timm, Doris Halverson

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Contact Metasomatic
Operation Type: Unknown
Year First Production: 1942
Discovery Year: 1941
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: Dutch Mountains

Mineral Deposit Model

Not available

Orebody

Form: TABULAR

Structure

Type: R
Description: Basin And Range

Type: L
Description: Pool Canyon Fault

Alterations

Not available

Rocks

Name: Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Oligocene

Name: Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Oligocene

Name: Monzonite
Role: Associated
Age Type: Host Rock Unit
Age Young: Mississippian

Name: Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Mississippian

Analytical Data

Not available

Materials

Ore: Scheelite
Gangue: Epidote
Gangue: Quartz
Gangue: Calcite
Gangue: Garnet

Comments

Comment (Reserve-Resource): THE INFERRED RESERVES WERE THOUGHT TO BE BETWEEN THE 18 AND 40 FT. LEVELS.

Comment (Development): THE FIRST DEVELOPMENT CONSISTED OF SINKING ON 18 FT. SHAFT AND OPEN-CUTTING THE ORE ALONG STRIKE, FROM THE SURFACE TO THE BOTTOM OF THE SHAFT. CROSSCUTS WERE DRIVEN, THE SHAFT WAS CONTINUALLY DEEPENED, AND THE ORE STOPED ALONG AND ACROSS THE STRIKE OF THE TACTITE ZONE.

Comment (Deposit): THE DIMENSIONS GIVEN REPRESENT THE SIZE OF THE ORIGINAL ORE BODY, AS EXPOSED ON THE SURFACE.

Comment (Workings): AN OPEN-PIT DEVELOPED BY SELECTIVE MINING OF THE TACTITE BODY ALONG THE LIMESTONE-QTZ. MONZONITE CONTACT. TWO SHORT ADITS, APPROX. 20 FT. AND 10 FT. LONG, WERE DRIVEN IN THE WEST SIDE OF THE PIT.

Comment (Location): SE SLOPE OF DUTCH MTN.

Comment (Production): REFERING TO FIELD 8, YEARS ARE 1942-1944 1954-1955; REFERING TO FIELD 9, YEARS ARE 1942-1944, 1954-1955

References

Reference (Deposit): MESSENGER, H.M. III, 1980, ON-SITE INVESTIGATION: UTAH GEOL. AND MINERAL SURVEY

Reference (Deposit): NOLAN, T.B., 1935, THE GOLD HILL MINING DISTRICT, UTAH: U.S.G.S. PROF. PAPER 177

Reference (Deposit): U.S. BUREAU OF MINES, 1944, MINERAL PROPERTY FILE 74.13

Reference (Deposit): U.S. BUREAU OF MINES, 1953, MINERALS YEARBOOK

Reference (Deposit): WILSON, S.R., 1958, GOLD HILL, UTAH, CLIFTON DISTRICT, TOOELE COUNTY: UNPUB. REPORT 80.

Reference (Deposit): 1935 GEOLMAP NOLAN, T.B. PROF. PAPER 177, PL. 2

Reference (Deposit): 1942 RECON USBM, MINERAL PROPERTY FILE 74.13

Reference (Production): WILSON, S.R., 1958, UNPUBLISHED REPORT; USBM, 1953, MINERALS YEARBOOK

Reference (Deposit): EVERETT, F.D., 1961, TUNGSTEN DEPOSITS IN UTAH: USBM INF. CIRC. 8014, P. 216

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