St Anthony Mine

Site Name

Primary: St Anthony Mine
Secondary: Toy Mine: Anderson Claims Browns, Procidence,
Secondary: Tip Top and Fairmont Claims
Secondary: Browns
Secondary: Providence
Secondary: NBMG Sample Sites 2998 and 2999.

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Commodity

Primary: Tungsten
Secondary: Fluorine-Fluorite
Secondary: Zinc
Tertiary: Copper
Tertiary: Lead

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Location

State: Nevada
County: Churchill
District: Toy District

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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.

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Holdings

Not available

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Workings

Not available

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Ownership

Not available

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Production

Year: 1956
Time Period: 1915-1956
Material type: WO3
Description: Cp_Grade: ^1.35 % Wo3

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Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

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Physiography

Not available

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Mineral Deposit Model

Model Name: W skarn

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Orebody

Form: IRREGULAR

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Structure

Not available

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Alterations

Not available

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Rocks

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Late Jurassic

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Analytical Data

Not available

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Materials

Ore: Scheelite
Ore: Galena
Ore: Chalcopyrite
Ore: Sphalerite
Gangue: Garnet
Gangue: Diopside
Gangue: Hornblende
Gangue: Quartz

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Comments

Comment (Deposit): THE 5TH LEVEL THE OREBODY IS A NARROW PIPE 2-5 FT WIDE AND -20 FT LONG. WHERE THE OREBODY IS LONGEST AND THICKEST, THE CON-TACT HAS THE FLATTEST DIP. THE SMALL LENSES OF ORE EXPOSED WES-T OF THE MAIN ORE BODY ARE NARROW AND APPEAR TO BE SHALLOW. TH-E AVERAGE GRADE OF THE ORE MINED WAS ABOUT 1.35 % WO3. CURRENT-LY (1985) ALL OF THE STOPES WHICH DAYLIGHT AT SURFACE ALONG TH-E CONTACT DISPLAY VERY LITTLE SKARN (DARK SILICATE) ZONE. THE -OUTCROP OF THE CONTACT SILICATE ZONE IS MARKED BY PODS OF WHIT-E QUARTZ; PILLARS REMAINING IN THE STOPES ARE LARGELY QUARTZ W-ITH A THIN LAYER (6 IN TO 2 FT) OF PALE SILICATE ROCK OCCUPYIN-G THE CONTACT BETWEEN GRANODIORITE AND COARSELY CRYSTALLINE MA-RBLE. THE ZONE IS STAINED WITH IRON AND MN OXIDES. NO SULFIDES- OF ANY TYPE WERE NOTED. ON THE EASTERN DUMPS, SOME BLOCKS OF -WHITE SILICATED LIMESTONE WITH STRINGS OF SMALL GARNET CRYSTAL-S ALONG BEDDING PLANES.

Comment (Workings): SEVERAL INCLINED SHAFTS (NOW MOSTLY CAVED) ADITS, AND OPEN STOPES ARE EXPOSED. WORKINGS EXTEND FOR OVER ONE MILE A-LONG CONTACT

Comment (Geology): MANY SMALL FAULTS CROSS THE CONTACT ZONE BUT THERE IS NO RECOGNIZED RELATIONSHIP BETWEEN THEM AND ORE DISTRIBUTION-. THE CONTACT IS CUT AND APPARENTLY OFFSET BY FAULTS.IN AT LEA-ST ONE PLACE THE CONTACT APPEARS TO BE GENERALLY CONFORMABLE T-O SEDIMENTARY BEDDING. LOCALLY THE GRANODIORITE FOOTWALL FOLLO-WS SMALL FOLDS IN THE LIMESTONE. MARBLE EXTENDS FOR UP TO 100 -FT AWAY FROM THE CONTACT; THE INTRUSIVE ITSELF SHOWS FRACTURIN-G, IRON STAINING ALONG FRACTURES, AND IS CUT BY QUARTZ VEINS A-ND AT LEAST TWO TYPES OF DIKE ROCKS.

Comment (Deposit): THE CONTACT OF SEDIMENTS WITH THE QUARTZ MONZONITE PLUTON DIPS 30-70S AND CUTS ACROSS BEDS AT A SMALL ANGLE. NEAR -THE COLLAR OF THE SHAFT THE CONTACT BENDS ACROSS THE STRIKE OF- THE BEDS CUTTING OUT THE MARBLE EASTWARD. TACTITE OCCURS ALON-G THE MARBLE/QUARTZ MONZONITE CONTACT. SCHEELITE OCCURS IN THE- TACTITE ALONG WITH QUARTZ, GARNET, DIOPSIDE, EPIDOTE, AND HOR-NBLENDE. ALMOST ALL THE TACTITE WAS TUNGSTEN ORE, BUT TACTITE -WAS PRESENT ALONG ONLY A SMALL PART OF THE CONTACT. BELOW THE -5TH LEVEL, SOME OF THE TACTITE IS RICH IN FLUORITE AND CONTAIN-S PODS OF SPHALERITE WITH A LITTLE PYRITE, GALENA AND CHALCOPY-RITE. IN THE UPPER PORTION OF THE MINE, THE TACTITE IS OXIDIZE-D TO A POROUS, FRIABLE AGGREGATE OF QUARTZ, IRON OXIDES, AND S-CHEELITE, AND THE HEAVY SILICATE MINERALS ARE ALMOST LACKING. -THE MAIN OREBODY EXTENDS WEST FROM THE BEND IN THE CONTACT NEA-R THE SHAFT FOR ABOUT 225 FT AT THE SURFACE AND BECOMES SHORTE-R WITH DEPTH. THE ORE WAS 1-15 FT WIDE IN UPPER LEVELS BUT BEL-OW

Comment (Location): PREVIOUS QUAD DESIGNATION = CARSON SINK (1951) 1:625000

Comment (Development): IN 1908, TWO LOVELOCK RESIDENTS, PANNING THEIR CLAIMS FOR GOLD FOUND A HEAVY WHITE MINERAL IN THEIR CONCENTRATES, -WHICH WAS SENT TO SAN FRANCISCO WHERE DAVID ATKINS, A MINING E-NGINEER, IDENTIFIED IT AS SCHEELITE, AND IT RESULTED IN THE FI-RST U. S. DISCOVERY OF TUNGSTEN IN A CONTACT METAMORPHIC DEPOS-IT. THE MINING CLAIMS SURROUNDING THE DISCOVERY WERE SOLD TO T-HE ST. ANTHONY MINES CO., A SUBSIDIARY OF ATOLIA MINING CO., I-N 1908. LITTLE WORK WAS DONE UNTIL 1915, WHEN THE DEMAND FOR T-UNGSTEN CREATED BY WWI CAUSED THE PRICE OF TUNGSTEN TO RISE. I-N 1915, 20 TONS OF SCHEELITE-BEARING ORE WAS MINED AND SHIPPED- TO ATOLIA, CA FOR EXPERIMENTAL MILLING. A MILL WAS BUILT IN 1-915 AND TUNGSTEN WAS PRODUCED UNTIL THE PRICE DROPPED IN 1918 -FORCING CLOSURE, AND THE MILL WAS DISMANTLED IN 1921. MILL TAI-LINGS WERE RETREATED IN 1925-1926 BY G. W. POOLE. IN 1940-1943- THE RARE METALS CORP MINED 2423 TONS ORE TREATED AT THE TOULO-N MILL, AND THE MINE WAS ACTIVE AGAIN 1954-1956. INACTIVE WHEN-

Comment (Development): VISITED IN 1985.

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References

Reference (Deposit): LEMMON, D.M. AND TWETO, O.L., 1962, TUNGSTEN IN THE U.S., USGS MAP MR-25.

Reference (Deposit): TINGLEY, J. V., 17 APR 85, NBMG FIELD EXAMINATION AND SAMPLE ANALYSES.

Reference (Deposit): WILLDEN, RONALD, AND SPEED, R.C., 1974, GEOLOGY AND MINERAL DEPOSITS OF CHURCHILL COUNTY, NEVADA: NBMG. BULL 83

Reference (Deposit): HESS, F.L., AND LARSEN, E.S., 1921, CONTACT-METAMORPHIC DEPOSITS OF THE UNITED STATES: USGS BULL 725-D. P. 245-309.

Reference (Deposit): NBMG STAFF, 1985, NBMG OFR 85-3.

Reference (Deposit): STAGER, H. K., IN PREPARATION, NBMG BULL ON TUNGSTEN DEPOSITS OF NEVADA.

Reference (Production): NBM BULL., STAGER, H.K. (IN PREP. JAN. 1984)

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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.