Quartz Ledge

The Quartz Ledge is a fluorine-fluorite mine located in Gila county, Arizona at an elevation of 3,199 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

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Site Name

Primary: Quartz Ledge
Secondary: White Cow
Secondary: Porcupine

Commodity

Primary: Fluorine-Fluorite
Tertiary: Silver
Tertiary: Gold

Location

State: Arizona
County: Gila
District: Tonto Basin

Land Status

Land ownership: National Forest
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: Located Claim

Workings

Type: Underground

Ownership

Owner Name: Pro-Met Of Arizona, Inc.
Percent: 100.0
Home Office: Arizona
Info Year: 1982

Production

Year: 1973
Time Period: 1971-1973
Description: Combined Fluorspar Production 1971-73 270 Total Mt Ore Produced

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Surface-Underground
Mining Method: Unknown
Year First Production: 1971
Years of Production:
Organization:
Significant: N

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Mexican Highland

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Not available

Comments

Comment (Workings): NO ROAD NEEDS TO BE BUILT. HOWEVER, THE EXISTING ROAD (14KM FROM TONTO BASIN TO MILL TO QUARTZ LEDGE) WOULD NEED TO BE IMPROVED- PROBABLY WIDENED AND GRAVELED.

Comment (Deposit): THE DEPOSIT WAS EVALUATED FOR FLUORSPAR ONLY. ACCORDING TO THE OWNER, SOME GOLD AND SILVER VALUES HAVE BEEN FOUND, BUT NO ASSAYS OR RESERVE FIGURES WERE MADE AVAILABLE. MOST SOURCES REPORT THIS PROPERTY HAS LITTLE, IF ANY, RESERVES, AND IS NOT WORTH INVESTING IN.

Comment (Geology): DISTRICT ALSO UNDERLAIN BY PRECAMBRIAN GRANITE, WITH YOUNGER PRECAMBRIAN APACHE GROUP OVERLAYING IT, CRETACEOUS GRANITE INTRUDES OLDER ROCKS. THERE ARE 2 VEINS: SOUTH (PRINCIPAL) VEIN N45W, DIP 75SW, 214M LENGTH X 15M DEPTH X 1.5M THICKNESS. NORTH VEIN N40W, DIP 85SW, 91M LENGTH X 15M DEPTH X 1M THICKNESS

Comment (Production): SURFACE GEOLOGIC MAPPING HAS BEEN DONE FOR GILA COUNTY (ARIZ BUMINES 1959). THE TEST ADIT IS A 15 DEGREE INCLINE 20M DEEP, AND IS CURRENTLY FLOODED. THE TEST PIT IS 305M LONG X 6M WIDE X 4.6-6M DEEP, AND OBSCURES MUCH OF THE SURFACE GEOLOGY. OTHER METHOD INCLUDES SOME SAMPLING BY THE CURRENT OWNER, NO ASSAYS WERE MADE AVAILABLE FOR THIS EVALUATION. THE ONLY PRODUCTION WAS 270 MT OF DEVELOPMENT ORE 1971-73 FROM THE INCLINE AND TEST PIT, NO PRODUCTION SINCE THEN.

Comment (Economic Factors): ACQUISITION COST OF $1,000,00 WAS PAID BY PRO-MET IN NOV 1980 FOR THE QUARTZ LEDGE, RED ROCK, BLUEBIRD, AND THE MILL. 1/3 OF THIS VALUE ($333,000) WAS CREDITED TO THE QUARTZ LEDGE- $163,000 FOR ACQUISITION COST OF THE DEPOSIT AND $170,000 FOR THE QUARTZ LEDGE SHARE OF THE MILL CAPITAL COST. MILL CAPITAL COST IS $170,000, WHICH IS THE QUARTZ LEDGE SHARE OF THE COST IN NOV 1980. THE ACTUAL COST OF CONSTRUCTING THE MILL IN 1971 WAS $600,000. MILL OPERATING COST BASED ON ACTUAL OPERATING COST OF $10/ST IN 1979 CONVERTED TO METRIC AND UPDATED TO JULY 1981.

Comment (Reserve-Resource): NO R-DATA IS LISTED BECAUSE THERE ARE NO PUBLISHED RESERVES FOR THIS DEPOSIT, Q-MAT1 COL1 IS THE RESERVE FIGURE USED FOR THIS EVALUATION- 19800MT AT 50% CAF2. TWO OTHER UNPUBLISHED USBM REPORTS PUT RESERVES AT 816MT, GRADE 45% (WOOD 1/24/75), AND 4536-9072MT, GRADE 40-50% CAF2(STEWART 1957).

Comment (Reserve-Resource): MAT1 COL1- REPRESENTS TONNAGE AND GRADE ESTIMATED BY EVALUATOR BASED ON OREBODY DIMENSIONS BY STEWART (1957). NO QUANTITY OR GRADE OF ORE KNOWN BY OWNER AT PRESENT TIME, THEREFORE THIS FIGURE USED FOR COSTING AND RESERVE ESTIMATE.

References

Reference (Deposit): ----, QUARTZ LEDGE (WHITE COW): REPORT ON ARIZONA FLUORITE

Reference (Deposit): ARIZONA BUMINES, 1959, GEOLOGIC MAP OF GILA COUNTY, ARIZONA

Reference (Deposit): ARIZONA DEPT. OF MINERAL RESOURCES, MINERALS AVAILABILITY

Reference (Deposit): SYSTEM ARIZONA FLUORSPAR: GRANT NO. G0254012 FOR U.S.

Reference (Deposit): BUMINES, MARCH 25, 1976, P. 2

Reference (Deposit): BRAKE, E. LEVI, U.S. BUMINES HEALTH AND SAFETY REPORT ON

Reference (Deposit): FILES, RED ROCK AND WHITE COW MINES: U.S. BUMINES FILES,

Reference (Deposit): JAN 24, 1974

Reference (Deposit): ----, MEMORANDUM ON FLUORSPAR INDUSTRY DISCUSSING TONTO MIN-

Reference (Deposit): ING AND MILLING CO.: U.S. BUMINES FILES, JAN 17, 1974

Reference (Deposit): BLUEBIRD MINE AND MILL: AUG 16, 1971, P.1

Reference (Deposit): BURGIN, LORRAINE B., 1978-79, ARIZONA: U.S. BUMINES MINERALS

Reference (Deposit): ARIZONA DEPT. OF MINERAL RESOURCES, NOV 28, 1975, 3P.

Reference (Deposit): YEARBOOK, VOL II, P. 70

Reference (Deposit): CUMMINGS, J.B., EXPLORATION OF THE PACKARD FLUORSPAR PROPER-

Reference (Deposit): TY, GILA CO., ARIZ.: U.S. BUMINES RI 3880, MAY 1946, 7P.

Reference (Deposit): E/MJ, FLUORSPAR: MARCH ISSUE ANNUAL REVIEW, 1971-1981

Reference (Deposit): ----, INTERNATIONAL DIRECTORY OF MINING, ARIZONA: TONTO MIN-

Reference (Deposit): ING AND MILLING CO., INC., 1971-1981

Reference (Deposit): ----, MARKETS: FLUORSPAR PRICES, AUGUST 1981, P.23

Reference (Deposit): GUCCIONE, EUGENE, FLUORSPAR TRENDS: E/MJ, DEC 1972, P.70

Reference (Deposit): HAMILTON, JACK, PERSONAL COMMUNICATION, JAN 14, FEB 10, 1982

Reference (Deposit): HANDY RAILROAD ATLAS OF THE UNITED STATES, 1973, RAND MCNAL-

Reference (Deposit): LY AND CO., CHICAGO, ILL.

Reference (Deposit): KELLER, JACK, PERSONAL COMMUNICATION, JAN 8, 22, 1982.

Reference (Deposit): KOSTICK, DENNIS S., AND RONALD J. DEFILIPPO, 1978-79, FLUOR-

Reference (Deposit): SPAR: U.S. BUMINES MINERALS YEARBOOK, VOL I, P.342

Reference (Deposit): KRAL, VICTOR, BLUEBIRD MINE: REPORT ON ARIZONA FLUORITE FROM

Reference (Deposit): FROM ARIZ DEPT OF MINERAL RES., DEC 20, 1975, 2P.

Reference (Deposit): ----, RED ROCK: REPORT ON ARIZONA FLUORITE FROM ARIZ DEPT OF

Reference (Deposit): MINERAL RES., DEC 20, 1975, 3P.

Reference (Deposit): MIERITZ, RICHARD E., TONTO BASIN FLUORSPAR DISTRICT: REPORT

Reference (Deposit): TO TRANSWORLD MINING SYNDICATE, MARCH 13, 1958, 6P.

Reference (Deposit): MORSE, DAVID E., 1980, MINERAL FACTS AND PROBLEMS, FLUORINE

Reference (Deposit): CHAPTER: U.S. BUMINES BULLETIN 671, P.303-321

Reference (Deposit): STRAAM ENGINEERS, INC., 1979, CAPITAL AND OPERATING COST

Reference (Deposit): ESTIMATING SYSTEM HANDBOOK: U.S. BUMINES CONTRACT NO.

Reference (Deposit): J0255026

Reference (Deposit): STECKLEY, R.C., AND J.F. LEMONS, A METHOD FOR UPDATING COST

Reference (Deposit): ESTIMATES FOR THE MINERALS AVAILABILITY SYSTEM, BUMINES

Reference (Deposit): INTERNAL REPORT, SOG, MAY 1976, 40P.

Reference (Deposit): STEWART, L.A., U.S. BUMINES REVIEW OF EXAMINATION, QUARTZ

Reference (Deposit): LEDGE (PORCUPINE): JULY 24, 1957, 3P.

Reference (Deposit): U.S. BUMINES, FLUORINE: MINERAL COMMODITY PROFILE MCP-20,

Reference (Deposit): AUG 1978, 27P.

Reference (Deposit): ----, MINERALS AVAILABILITY SYSTEM COMPUTER FILE, BLUEBIRD,

Reference (Deposit): RED ROCK, AND QUARTZ LEDGE PROPERTIES

Reference (Deposit): U.S. FOREST SERVICE, TONTO NATIONAL FOREST CLIMATE RECORDS,

Reference (Deposit): 1981.

Reference (Deposit): VAN ALSTINE, R.E., AND R.T. MOORE, 1969, MINERAL AND WATER

Reference (Deposit): RESOURCES OF ARIZONA, FLUORSPAR CHAPTER: ARIZONA BUMINES

Reference (Deposit): BULLETIN 180, P.348-357

Reference (Deposit): WOOD, H.B., MEMORANDUM ON FLUORSPAR ACTIVITY AND RESERVE

Arizona Gold

"Where to Find Gold in Arizona" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Arizona. Read more: Where to Find Gold in Arizona.