The Rainbow Pits is a tungsten mine located in Millard county, Utah at an elevation of 7,799 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
Elevation: 7,799 Feet (2,377 Meters)
Commodity: Tungsten
Lat, Long: 39.19167, -113.37667
Map: View on Google Maps
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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.
Rainbow Pits MRDS details
Site Name
Primary: Rainbow Pits
Secondary: Rainbow Mine
Commodity
Primary: Tungsten
Tertiary: Molybdenum
Location
State: Utah
County: Millard
District: Notch Peak
Land Status
Not available
Holdings
Not available
Workings
Type: Surface
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: R
Description: Sevier Thrust Belt, Basin-Range Faults Bounding The House Range
Type: L
Description: Possible Fault (Post-Mineral?)
Alterations
Alteration Type: L
Alteration Text: Metasomatism, Contact Metamorphism
Rocks
Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Late Jurassic
Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Late Cambrian
Analytical Data
Analytical Data: SAMPLES FROM THE BOTTOM OF THE PIT CONTAINED BETWEEN 0.03 AND 1.89 PERCENT WO3. AVERAGE ORE GRADE IS 0.8 PERCENT WO3.
Materials
Ore: Scheelite
Ore: Powellite
Gangue: Pyrite
Gangue: Diopside
Gangue: Andradite
Gangue: Vesuvianite
Gangue: Epidote
Gangue: Quartz
Gangue: Hornblende
Comments
Comment (Production): APPROXIMATELY 3,000 TONS OF ORE CONTAINING 0.8% WO3 WERE MINED
Comment (Development): THREE WAGON DRILL HOLES WERE DRIVEN IN AN EXPLORATION PROGRAM TO A DEPTH OF 50 FEET, EACH SPACED 100 FEET FROM THE GRANITE-LIMESTONE CONTACT.
Comment (Deposit): THE DEPOSIT CONSIST OF SCHEELITE DISSEMINATED IN ANDRADITE-RICH TACTITE. THE TACTITE WAS 4 METERS THICK AGAINST THE GRANITE AND THINNED TO 1.6 METERS ON THE EAST SIDE OF THE PIT. TACTITE IS CAPPED BY THREE TO FIVE METERS OF COARSELY CRYSTALLINE DARK-GRAY "SANDED" MARBLE. THE TACTITE IS ABUTTED AGAINST THE GRANITE AND MAY BE CONFORMABLE WITH AN UNDERLYING GRANITE SILL DIPPING 12 DEGREES TO THE NORTHWEST OR MAY BE IN FAULT CONTACT WITH THE GRANITE.
Comment (Workings): PIT THAT YIELDED 3,000 TONS OF ORE MEASURED 150 BY 25 BY 20 FEET. AN UNPUBLISHED REPORT LISTS THE PIT AS MEASURING 200 BY 40 BY 25 FEET.
References
Reference (Deposit): EVERETT, 1961, TUNGSTEN DEPOSITS IN UTAH: U.S. BUREAU OF MINES INFORMATION CIRCULAR 8014, 44P.
Reference (Deposit): PETERSEN, D.M., 1976, GEOCHEMISTRY AND GEOLOGY OF THE NOTCH PEAK TUNGSTEN DEPOSITS, MILLARD COUNTY, UTAH: SALT LAKE CITY, UTAH, UNIVERSITY OF UTAH, M.S. THESIS, 74P.
Reference (Deposit): HINTZE, L.F., 1974, PRELIMINARY GEOLOGIC MAP OF THE NOTCH PEAK QUADRANGLE, MILLARD CONTY, UTAH: U.S. GEOLOGICAL SURVEY MISCELLANEOUS FIELD STUDIES MAP MF-636.
Reference (Deposit): GRAY, R.S., 1956, PRELIMINARY REPORT OF GEOLOGICAL INVESTIGATION OF THE PROPERTY OF THE TREASURE MONTAIN MINING CO., HOUSE TANGE, MILLARD COUNTY, UTAH: UNPUBLISED REPORT.
Reference (Production): EVERETT, 1961
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