Laramie Range Anorthosite area

The Laramie Range Anorthosite area is a aluminum mine located in Albany county, Wyoming at an elevation of 6,798 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: Laramie Range Anorthosite area

Commodity

Primary: Aluminum
Tertiary: Water, Free
Tertiary: Titanium
Tertiary: Sodium
Tertiary: Silica
Tertiary: Iron
Tertiary: Calcium

Location

State: Wyoming
County: Albany

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

Type: Federal Lease
Type: State Lease
Type: Fee Ownership

Workings

Type: Surface

Ownership

Owner Name: Multiprivate Ownership In Fee
Info Year: 1974

Production

Not available

Deposit

Record Type: Deposit
Operation Category: Prospect
Operation Type: Surface
Mining Method: Open Pit
Milling Method: Sinter Plants
Discovery Year: 1870
Years of Production:
Organization:
Significant: Y

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Unknown: Olivine
Unknown: Pyroxene
Unknown: Orthoclase
Unknown: Magnetite
Unknown: Labradorite
Unknown: Ilmenite
Unknown: Hornblende

Comments

Comment (Deposit): WITH 65 BILLION TONS OF ORE THIS DEPOSIT COULD SUPPLY MAXIMUM OF 1400 MINES FOR 25 YEARS, IF EACH MINE PRODUCED 50 OF ORE PER DAY. COMMENT-SEE IC 8335 P. 28 FOR CHEMICAL ANALYSIS COMMENT-ORE BODY IS LARGE. AREAL EXTENT IS T16-21N,R71-72W. COMMENT-MULTIPRIVATE OWNERSHIP IN FEE SIMPLE PLUS STATE AND F COMMENT-GEOLOGIC STRUCTURE IS ANTICLINAL. THE NORTHERN ORE B TRENDS N-S. SOUTHERN BODY TRENDS N60E. BENEFICIATION PRODUCTS INCLUDE 2% MOIST., 1% LOI, & 2% OTHER COST ESTIMATES COURTESY OF R. STECKLEY, 15 APR 75.

Comment (Production): "approximately 32,000 tons of anorthosite was mined in sec 2, T16N, R72W, for a pilot plant recovering alumina from anorthosite" (reference is St. Clair and others, 1959, p. 69-70, 118-120.) "The average analysis of this material was 28% Al2O3" (USBM IC 8335, p. 146).

References

Reference (Deposit): U.S. Bureau of Mines, Potential Sources of Aluminum: USBM Information Circular 8335, p. 8, 145-146.

Reference (Deposit): PAUL BIGGS-USBM ENERGY RES CENTER, LARAMIE, WYOMING.

Reference (Deposit): WALTER DUNCAN, NATURAL RESOURCES INSTITUTE, UNIV WYOMING, LARAMie

Reference (Deposit): Lundquist and Singleton, 1962, Some characteristics of iron in the lime soda sinter process for recovering alumina from anorthosite: US BUreau of MINES REPT of INV 6090, 14 p.

Reference (Deposit): HODGE and others, 1973, Gravity interpretation of the Laramie anorthosite complex, Wyoming: GEOL SOC AMER BULL, V. 84, no. 4, P. 1451-1464.

Reference (Deposit): FOWLER, 1930, The anorthosite area of the Laramie Mountains, Wyoming[parts I and II]: AM. JOUR. SCI. V. 19,P. 305-315, 373-403.

Reference (Deposit): KLUGMAN 1960 GUIDE TO GEOL OF COLO., GEO SOC AM ANNUAL MEET.

Reference (Deposit): Lundquist, 1963, Recovery of alumina from anorthosite, San Gabriel Mountains, California, using the lime soda sinter process: US BUreau of MINES REPT of INV 6288, 12 p.

Reference (Deposit): ST. CLAIR, H.W., and 6 others, 1959, Operation of experimental plant for producing alumina from anorthosite: US BUR MINES BULL. 577, 127 p.

Reference (Deposit): BROWN, 1947, Recovery of alumina from Wyoming anorthosite by the line-soda-sinter process: US BUR MINES REPT. OF INV. 4132, 127 p.

Reference (Deposit): HAGNER, 1951, Anorthosite of the Laramie Range, Albany County, Wyoming, as a possible source of alumina: GEOL. SURV. OF WYOMING, BULL NO. 43, 15 p.

Reference (Deposit): Newland, Hagner, and NEWHOUSE, 1957, Geologic map of anorthosite areas, southern part of Laramie Range, Wyoming, USGS MIN. INV. FIELD STUDIES MAP MF-119.

The Top Ten Gold Producing States

These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.