The Last Chance Property is a tungsten mine located in Humboldt county, Nevada at an elevation of 4,731 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: 4,731 Feet (1,442 Meters)
Commodity: Tungsten
Lat, Long: 41.84806, -118.69778
Map: View on Google Maps
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.
Last Chance Property MRDS details
Site Name
Primary: Last Chance Property
Secondary: Golden Tungsten Property
Commodity
Primary: Tungsten
Location
State: Nevada
County: Humboldt
District: Warm Springs (Vicksburg) 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
Not available
Ownership
Owner Name: Merrill, Herb
Years: 1976 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Deposit Type: Contact Metamorphic
Operation Type: Unknown
Discovery Year: 1944
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: Basin And Mountains
Mineral Deposit Model
Model Name: W skarn
Orebody
Form: IRREGULAR (CONTACT ZONE)
Structure
Not available
Alterations
Not available
Rocks
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Jurassic
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene
Analytical Data
Analytical Data: SOME UP TO 0.5 % WO3.
Analytical Data: SOME SAMPLES AVERAGE 0.2 % WO3
Materials
Ore: Scheelite
Gangue: Garnet
Gangue: Pegmatite
Comments
Comment (Production): A FEW 10'S OF TONS OF LOW-GRADE ORE ARE PRESENT
Comment (Development): ONLY KNOWN PRODUCTION WAS 11 TONS OF ORE, AVERAGING 0.58 % WO3 SHIPPED TO METALS RESERVE CO. IN 1943 BY THEN OWNERS M.A. JENSEN AND J.S. ALEXANDER.
Comment (Deposit): SCHEELITE OCCURS IN THIN BEDS OF GARNET TACTITE, 1.5-3 FT WIDE, ALONG THE WESTERN MARGIN OF THE PINE FOREST INTRUSIVE. THE GRANODIORITE UNDERLIES THE ENTIRE CLAIM AREA AND THE TACTITE BODIES ARE PENDANTS THAT PROBABLY DO NOT EXTEND DOWN DIP MORE THAN 15 FT. THE SCHEELITE IS FINE-GRAINED AND FLUORESCES A GOLDEN YELLOW. SOME SMALL PODS OF TACTITE MAY CONTAIN ABOUT 0.5 % WO3, BUT MOST OF IT IS BARREN.
Comment (Workings): PITS, SHAFTS, ADITS, 5 SHALLOW TRENCHES AND PROSPECT PITS EXPOSE CONTACT FOR ABOUT 2000 FT.
Comment (Geology): SEVERAL SCHEELITE-BEARING TACTITE BODIES NONE OF WHICH IS WIDER THAN 2 FEET. SCHEELITE OCCURS IN THIN BANDS OF GARNET TACTITE FORMED ALONG THE WESTERN MARGIN OF THE LARGE PINE FOREST INTRUSIVE MASS. SMALL PODS OF MINERALIZED TACTITE OCCUR ALONG THE CONTACT. THE LARGEST MINERALIZED TACTITE POD IS 3 FT THICK.
Comment (Location): A MILE S. OF DEFENSE MINE ALONG W. SIDE OF RANGE
Comment (Deposit): OWNED BY M.A. JENSEN AND J.S. ALEXANDER, IN 1944, AND BY HERB MERRILL IN 1976. IT CONSISTS OF 3 LODE CLAIMS. SMALL PROSPECT PITS, SHAFTS, AND ADITS EXPOSE THE CONTACT ZONE FOR ABOUT 2000 FT. OF ITS LENGTH. A 1976 REPORT CONCLUDES THAT THE PROSPECT YIELD NO MORE THAN A FEW TENS OF TONS OF LOW-GRADE ORE. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
References
Reference (Deposit): WILLDEN, R., 1964; GEOLOGY AND MINERAL DEPOSITS OF HUMBOLDT COUNTY, NEVADA; NBMG, BULL. 59.
Reference (Deposit): TINGLEY, J.V., 1976, UNPUBLISHED REPORT ON THE GOLDEN TUNGSTEN PROPERTY, VICKSBURG DISTRICT: ON FILE AT NBMG.
Reference (Deposit): STAGER, H.G. AND TINGLEY, J.V., IN PREPARATION, NBMG BULL ON TUNGSTEN DEPOSITS OF NEVADA.
Nevada Gold
Nevada has a total of 368 distinct gold districts. Of the of those, just 36 are major producers with production and/or reserves of over 1,000,000 ounces, 49 have production and/or reserves of over 100,000 ounces, with the rest having less than 100,000 ounces. Read more: Gold Districts of Nevada.
