The York Mountains Beryllium - Fluorite and Tin Deposits is a fluorine-fluorite, beryllium, and tin mine located in Alaska at an elevation of 1,148 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: 1,148 Feet (350 Meters)
Commodity: Fluorine-Fluorite, Beryllium, Tin
Lat, Long: 65.41667, -167.16667
Map: View on Google Maps
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York Mountains Beryllium - Fluorite and Tin Deposits MRDS details
Site Name
Primary: York Mountains Beryllium - Fluorite and Tin Deposits
Secondary: Lost River Mine Area
Commodity
Primary: Fluorine-Fluorite
Primary: Beryllium
Primary: Tin
Secondary: Tungsten
Secondary: Lead
Secondary: Zinc
Secondary: Copper
Secondary: Molybdenum
Tertiary: Silver
Location
State: Alaska
Land Status
Not available
Holdings
Not available
Workings
Type: Unknown
Ownership
Not available
Production
Year: 1955
Time Period: 1949 - 1955
Material type: SN
Description: Cp_Grade: ^100 % Sn Metal, Lode Deposits
Year: 1955
Time Period: 1949 - 1955
Material type: SN
Description: Cp_Grade: ^100 % Sn Metal, Placer Deposits
Year: 1914
Time Period: 1913 - 1914
Material type: SN
Description: Cp_Grade: ^100 % Sn Metal
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Year First Production: 1913
Discovery Year: 1900
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: L
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Form: TABULAR
Structure
Type: R
Description: Mint River And Rapid River Thrust Faults
Type: L
Description: Normal Faults - 3 Sets. 1st Set Strikes N 65 - 85 Deg E And Dip Almost Vertically. 2nd Set Strikes N 20 - 60 Deg W. A Third Set Strikes Almost North. Lamprophyre Dikes Intrude The First Set.
Alterations
Not available
Rocks
Name: Rhyolite
Role: Associated
Age Type: Associated Rock
Age Young: Paleocene
Name: Rhyolite
Role: Associated
Age Type: Host Rock
Age Young: Early Ordovician
Name: Rhyolite
Role: Associated
Age Type: Host Rock Unit
Age Young: Early Ordovician
Analytical Data
Analytical Data: BE-F DEPOSIT ORES CONTAIN CAF2 - 50% AVERAGE, AND BEO - 0.3 TO 1.75%
Materials
Ore: Fluorite
Ore: Helvite
Ore: Chrysoberyl
Ore: Galena
Ore: Bertrandite
Ore: Wolframite
Ore: Beryl
Ore: Stannite
Ore: Cassiterite
Ore: Euclase
Ore: Sphalerite
Comments
Comment (Reserve-Resource): ITEM 1 - FROM ITEM 2 IN RESERVES ONLY
Comment (Deposit): First Production Year: 1913 - LOST RIVER MINE
Comment (Reserve-Resource): ITEM 1 - WORKS OUT TO 16,000 MET TONS BEO. CAMP CREEK #2 ORE ZONE. ITEM 2 - LOST RIVER MINE #1 ORE ZONE. ITEM 3 - 2,370 MET. TONS SN FROM 1.3% SN ORE, 722 MET. TONS FROM 0.76% SN ORE. ITEM 4 - 1,100 MET. TONS SN METAL FROM 1.5% SN ORE, 3,900 MET. TONS SN METAL FROM 1.0+% SN ORE. ITEM 6 - BEO RESERVES COULD BE AS HIGH AS 16,000 MET. TONS FROM 0.3% BEO ORE. SEE ITEM 1.
Comment (Reserve-Resource): ITEM 1 - WORKS OUT TO 16,000 MET. TONS BEO. CAMP CREEK #2 ORE ZONE. ITEM 2 - LOST RIVER MINE #1 ORE ZONE. ITEM 3 - FROM ITEM 2 (LOST RIVER MINE #1 ORE ZONE)
Comment (Location): AREA DEPOSITS INCLUDE THE RAPID RIVER, CURVE CREEK, LOST RIVER VALLEY (BESSIE-MAPLE), TIN CREEK, CAMP CREEK, AND LOST RIVER MINE. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).
Comment (Commodity): OTHER BYPRODUCTS INCLUDE COPPER AND MOLYBDENUM
Comment (Production): LOST RIVER MINING CORP. TO START CONSTRUCTION WORK IN SUMMER 1975. ESTIMATED LOST - 78 MILLION DOLLARS. TO PRODUCE F, SN, W, AG, BASE METALS
Comment (Development): ECON.COM: WATER SUPPLY FOR MILLING SHOULD COME FROM MINE GROUND-WATER TO AVOID FROZEN PIPES. PERMAFROST SOIL CAVES BADLY WHEN IT THAWS.
Comment (Workings): THE LARGEST BE-F DEPOSIT (CAMP CREEK) IS A WIDE ZONE OF VEINS AND VEINLETS OVER A LENGTH OF 730 M. THAT FORM A TABULAR BODY DIPPING GENTLY SOUTH UNDER THE RAPID RIVER FAULT. THE LOST RIVER MINE'S LONGEST ADIT IS 380 M. AND WORKINGS HAVE A VERTICAL EXTENT OF OVER 200 M.
Comment (Deposit): Discovery Year: LOST RIVER MINE - AROUND 1900, RAPID RIVER - 1961, CURVE CREEK - 1964, LOST RIVER VALLEY - 1962, TIN CREEK - 1962, CAMP CREEK - 1962
References
Reference (Deposit): SAINSBURY, C.L., 1964, GEOLOGY OF LOST RIVER MINE AREA, ALASKA: USGS BULL. 1129, 80 P.
Reference (Deposit): SAINSBURY, C.L., 1969, GEOLOGY AND ORE DEPOSITS OF THE CENTRAL YORK MOUNTAINS, WESTERN SEWARD PENINSULA, ALASKA: USGS BULL. 1287, 101 P.
Reference (Deposit): 1901 GEOLMAP COLLIER, A.J. AND HESS, F.L. (BULL. 733)
Reference (Deposit): 1940 GEOLMAP MERTIE, J.B. JR, COATS, R.R. (BULL. 1129)
Reference (Deposit): 1960 GEOLMAP SAINSBURY, C.L. (BULL. 1287)
Reference (Deposit): 1964 DIREXPL U.S. BU MINES
Reference (Production): SAINSBURY, C.L., 1969, USGS BULL. 1287.
Reference (Reserve-Resource): SAINSBURY, C.L., 1969, USGS BULL. 1287. {{ HODGE, B.L., 1973, INDUSTRIAL MINERALS, 5/73, P. 13.
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