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Magmont Mine

Producer in Iron county in Missouri, United States with commodities Lead, Zinc, Copper, Silver, Cadmium, Nickel, Cobalt
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Mineral rights holdings
  17. Land status
  18. Ownership information
  19. Production statistics
  20. Reserves and resources
  21. Workings at the site
  22. Links to other databases
  23. Bibliographic references
  24. General comments
  25. Reporter information

Geologic information

Identification information

Deposit ID 10073171
MRDS ID W019028
MAS/MILS ID 0290930008
Record type Deposit
Current site name Magmont Mine
Alternate or previous names Casteel Viburnum # 35, Boss Bixby Lead Deposit, Magmont West

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -91.12258, 37.63949 (WGS84)
Elevation 425
Location accuracy 100(meters)
Relative position Location is for the shaft symbol on the USGS 7.5' topo map. About 2.5 km SSW of the town of Bixby Missouri.

Site location context

Political divisions (FIPS codes)

Iron(county)

Missouri(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Viburnum East(quadrangle 1:24,000 scale)

Rolla(quadrangle 1:100,000 scale)

Rolla(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Black(hydrologic unit)

Upper White(hydrologic accounting unit)

Upper White(hydrologic subregion)

Arkansas-White-Red(hydrologic region)

Federal lands

Mark Twain National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Missouri Iron

Public Land Survey System information

Meridian Township Range Section Fraction State
5th Principal 034N 002W 13,14,23,24 Missouri
5th Principal 034N 002W 15 C W2W2 (Boss Bixby) Missouri

Commodities

Commodity Importance
Lead Primary
Zinc Critical Secondary
Copper Secondary
Silver Secondary
Cadmium Secondary
Nickel Critical Tertiary
Cobalt Critical Tertiary

Materials information

Materials Type of material
Galena Ore
Sphalerite Ore
Bornite Ore
Bravoite Ore
Chalcopyrite Ore
Linnaeite Ore
Marcasite Ore
Millerite Ore
Pyrite Ore
Siegenite Ore
Calcite Gangue
Dickite Gangue
Dolomite Gangue
Kaolinite Gangue
Quartz Gangue
Soda Niter Gangue

Analytical data

Result 32 SAMPLES FROM THE BOSS-BIXBY DEPOSIT WERE ANALYZED SPECTROCHEMICALLY WITH FOLLOWING MEAN PERCENTAGE CONCENTRATION: CO 0.0454 , NI 0.0056 , CU 0.174 , ZN 0.021 (KISVARSANYI, GEZA, 1977.

Mineral occurrence model information

Model code 224
USGS model code 32a
Deposit model name Mississippi Valley, S.E. Missouri Pb-Zn
Mark3 model number 42

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Lamotte Sandstone
    Rock description Bonneterre;Lamotte Sandstone;Davis
    Stratigraphic age (youngest) Late Cambrian
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite
    Rock type qualifier shaley
    Rock unit name Bonneterre Fm.
    Stratigraphic age (youngest) Late Cambrian
  • Host or associated Host
    Rock type
    Rock unit name Davis Fm.
    Stratigraphic age (youngest) Late Cambrian

Nearby scientific data

Ore Body (1) -91.12258, 37.63949
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Ozark Dome, St. Francios Igneous High , Buick Embayment
Type of structure Local
Structure description Davis Shale Overlies The Bonneterre Formation And Has Acted As An Impervious Barrier To Solution Flow. Underlying Precambrian Knobs Are Not Present. Joint System Oriented About N 50 Deg E And N 30 Deg W. High Ore Zone Is Bound By Faults Which Can Be Traced Continuously For About 4500 Ft In The Magmont Mine And Extend North And South Into Adjoining Property. All The High Ore Along This 4500 Ft Is Marked On Both East And West Sides By These Distinctive Shale-Filled Subsidence Fractures.

Ore body information

  • General form TABULAR
    Thickness 15M
    Depth to top 366M
    Depth to bottom 381M
  • Thickness 27M
    Length 2438M
    Width 600M
    Depth to top 355M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 BRECCIA FILL
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 DISSEMINATED
    Type of Orebody #3 REPLACEMENT
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control LITHOLOGY
    Secondary Ore Control FRACTURING
    Strike And Dip N00S:
    Minimum Depth to Top 311
    Avg. Thick. Unconsol. Mat. 40
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 801106
  • Area 25HA
    Field Value
    Total Surface Area (HA) 25
    Date of Last Modification 910418

Controls for ore emplacement

  • Solution-Induced Collapse Breccias, Gravity Slumps, The "Silty Marker", And Inter-Reef Calcarenites

Comments on the geologic information

  • REPETITIOUS CHARACTER OF THE SULFIDE MINERAL DEPOSITION INDICATES THAT THE ORES WERE DEPOSITED OVER A LONG PERIOD OF TIME AND THAT THE ORE-CONTROLLING STRUCTURES DEVELOPED DURING THE SPAN OF ORE DEPOSITION (HAGNI, R.D., AND TRANCYNGER, T.C., 1977 ).

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Metallic
Deposit size Large
Significant Yes
Discovery year 1962
Discoverer Cominco American, Inc. And Dresser Industries, Inc. Adjacent (and subsequently purchased) Boss Bixby deposit, discovered in 1956.
Mining method Open Stope - Room and Pillar
Year of first production 1968
Plant subcategory Flotation
Milling method Flotation

Mining district

District name Southeast Missouri District
District name Viburnum Trend
District name New Lead Belt

Mineral rights holdings

Type of mineral rights Federal Lease
Type of mineral rights Private Lease
Type of mineral rights Fee Ownership

Land status

Ownership category National Forest

Ownership information

  • Type Owner-Operator
    Owner Cominco American, Inc.
    Interest 50
    Home office Washington
    Year 1979
  • Type Owner
    Owner Dresser Industries Inc.
    Interest 50
    Home office Texas
    Year 1979
  • Type Unknown
    Owner Renco
    Home office New York
    Year 1997

Production statistics

  • Year 1968
    Material ore
    Ore mined 116000mt
    Accuracy Accurate
    Description 16,757 200 93 1,148 116000 Mt Grd: 14.7%Pb, 1.9%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 93mt
    Primary Lead Lead 16757mt 15wt-pct
    Secondary Silver Silver 1.15mt
    Secondary Zinc Zinc 200mt 2wt-pct
  • Year 1969
    Material ore
    Ore mined 538000mt
    Accuracy Accurate
    Description 54,966 5,311 3,010 6,991 538000 Mt Grd: Nr Pb, Nr Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 3010mt
    Primary Lead Lead 54966mt
    Secondary Silver Silver 6.99mt
    Secondary Zinc Zinc 5311mt
  • Year 1970
    Material ore
    Ore mined 779000mt
    Accuracy Accurate
    Description 77,106 6,882 2,262 11,126 779000 Mt Grd: Nr Pb Nr Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 2262mt
    Primary Lead Lead 77106mt
    Secondary Silver Silver 11.13mt
    Secondary Zinc Zinc 6882mt
  • Year 1971
    Material ore
    Ore mined 944000mt
    Accuracy Accurate
    Description 65,821 5,634 1,816 9,071 944000 Mt Grd: 7.6%Pb, 0.93zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 1816mt
    Primary Lead Lead 65821mt 8wt-pct
    Secondary Silver Silver 9.07mt
    Secondary Zinc Zinc 5634mt 1wt-pct
  • Year 1972
    Material ore
    Ore mined 932000mt
    Accuracy Accurate
    Description 63,749 4,104 2,403 7,552 932000 Mt Grd: 7.3%Pb, 0.69zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 2403mt
    Primary Lead Lead 63749mt 7wt-pct
    Secondary Silver Silver 7.55mt
    Secondary Zinc Zinc 4104mt 1wt-pct
  • Year 1973
    Material ore
    Ore mined 847000mt
    Accuracy Accurate
    Description 59,627 5,014 2,194 8,920 847000 Mt Grd: 7.6%Pb, 1.9%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 2194mt
    Primary Lead Lead 59627mt 8wt-pct
    Secondary Silver Silver 8.92mt
    Secondary Zinc Zinc 5014mt 2wt-pct
  • Year 1974
    Material ore
    Ore mined 946000mt
    Accuracy Accurate
    Description 62,723 6,568 2,810 10,996 946000 Mt Grd: 7.2%Pb, 1.0%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 2810mt
    Primary Lead Lead 62723mt 7wt-pct
    Secondary Silver Silver 11mt
    Secondary Zinc Zinc 6568mt 1wt-pct
  • Year 1975
    Material ore
    Ore mined 977000mt
    Accuracy Accurate
    Description 69,778 7,928 5,317 13,872 977000 Mt Grd: 7.8%Pb, 1.2%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 5317mt
    Primary Lead Lead 69778mt 8wt-pct
    Secondary Silver Silver 13.87mt
    Secondary Zinc Zinc 7928mt 1wt-pct
  • Year 1976
    Material ore
    Ore mined 971000mt
    Accuracy Accurate
    Description 65,948 8,775 3,190 13,115 971000 Mt Grd: 7.4%Pb, 1.2%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 3190mt
    Primary Lead Lead 65948mt 7wt-pct
    Secondary Silver Silver 13.12mt
    Secondary Zinc Zinc 8775mt 1wt-pct
  • Year 1977
    Material ore
    Ore mined 992000mt
    Accuracy Accurate
    Description 60,114 9,272 3,666 6,281 992000 Mt Grd: 7.0%Pb, 1.4%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 3666mt
    Primary Lead Lead 60114mt 7wt-pct
    Secondary Silver Silver 6.28mt
    Secondary Zinc Zinc 9272mt 1wt-pct
  • Year 1978
    Material ore
    Ore mined 953000mt
    Accuracy Accurate
    Description 73,910 9,817 1,936 7,063 953000 Mt Grd: 8.8%Pb, 1.6%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 1936mt
    Primary Lead Lead 73910mt 9wt-pct
    Secondary Silver Silver 7.06mt
    Secondary Zinc Zinc 9817mt 2wt-pct
  • Year 1979
    Material ore
    Ore mined 994000mt
    Accuracy Accurate
    Description 71,482 8,877 2,739 7,452 994000 Mt Grd: 8.2%Pb, 1.4%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 2739mt
    Primary Lead Lead 71482mt 8wt-pct
    Secondary Silver Silver 7.45mt
    Secondary Zinc Zinc 8877mt 1wt-pct
  • Year 1980
    Material ore
    Ore mined 984000mt
    Accuracy Accurate
    Description 70,769 6,202 2,463 4,995 984000 Mt Grd: 8.0%Pb, 1.0%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 2463mt
    Primary Lead Lead 70769mt 8wt-pct
    Secondary Silver Silver 5mt
    Secondary Zinc Zinc 6202mt 1wt-pct
  • Year 1981
    Material ore
    Ore mined 1022000mt
    Accuracy Accurate
    Description 64,889 7,411 1,802 5,714 1022000 Mt Grd: 7.0%Pb, 1.1%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Primary Lead Lead 7wt-pct
    Secondary Zinc Zinc 1wt-pct
  • Year 1982
    Material ore
    Ore mined 1004000mt
    Accuracy Accurate
    Description 58,631 6,497 1,779 6,563 1004000 Mt Grd: 6.5%Pb, 1.0%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 1779mt
    Primary Lead Lead 58631mt 7wt-pct
    Secondary Silver Silver 6.56mt
    Secondary Zinc Zinc 6497mt 1wt-pct
  • Year 1983
    Material ore
    Ore mined 1036000mt
    Accuracy Accurate
    Description 67,335 10,084 760 8,688 1036000 Mt Grd: 7.2%Pb, 1.4%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 760mt
    Primary Lead Lead 67335mt 7wt-pct
    Secondary Silver Silver 8.69mt
    Secondary Zinc Zinc 10084mt 1wt-pct
  • Year 1984
    Material ore
    Ore mined 1011300mt
    Accuracy Accurate
    Description 66,082 15,207 915 5,431 1011300 Mt Grd: 7.1%Pb, 2.1%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 915mt
    Primary Lead Lead 66082mt 7wt-pct
    Secondary Silver Silver 5.43mt
    Secondary Zinc Zinc 15207mt 2wt-pct
  • Year 1985
    Material ore
    Ore mined 1041000mt
    Accuracy Accurate
    Description 71,853 13,962 1,043 6,913 1041000 Mt Grd: 7.5%Pb, 1.9%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 1043mt
    Primary Lead Lead 71853mt 8wt-pct
    Secondary Silver Silver 6.91mt
    Secondary Zinc Zinc 13962mt 2wt-pct
  • Year 1986
    Material ore
    Ore mined 948000mt
    Accuracy Accurate
    Description 76,973 10,900 1,600 7,080 948000 Mt Grd: 8.6%Pb, 1.5%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 1600mt
    Primary Lead Lead 76973mt 9wt-pct
    Secondary Silver Silver 7.08mt
    Secondary Zinc Zinc 10900mt 2wt-pct
  • Year 1987
    Material ore
    Ore mined 1003000mt
    Accuracy Accurate
    Description 69,200 12,950 1,800 1003000 Mt Grd: 7.1%Pb, 1.5%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 1800mt
    Primary Lead Lead 69200mt 7wt-pct
    Secondary Zinc Zinc 12950mt 2wt-pct
  • Year 1988
    Material ore
    Ore mined 1001500mt
    Accuracy Accurate
    Description 69,600 8,000 1,400 1001500 Mt Grd: 7.2%Pb, 1.0%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 1400mt
    Primary Lead Lead 69600mt 7wt-pct
    Secondary Zinc Zinc 8000mt 1wt-pct
  • Year 1989
    Material ore
    Ore mined 962200mt
    Accuracy Accurate
    Description 63,100 7,720 1,340 962200 Mt Grd: 6.8%Pb, 1.0%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 1340mt
    Primary Lead Lead 63100mt 7wt-pct
    Secondary Zinc Zinc 7720mt 1wt-pct
  • Year 1990
    Material ore
    Ore mined 984200mt
    Accuracy Accurate
    Description 67,700 8,030 1,460 984200 Mt Grd: 7.1%Pb, 1.0%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 1460mt
    Primary Lead Lead 67700mt 7wt-pct
    Secondary Zinc Zinc 8030mt 1wt-pct
  • Year 1991
    Material ore
    Ore mined 1018700mt
    Accuracy Accurate
    Description 64,800 8,450 1,260 1018700 Mt Grd: 6.5%Pb, 1.0%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 1260mt
    Primary Lead Lead 64800mt 7wt-pct
    Secondary Zinc Zinc 8450mt 1wt-pct
  • Year 1992
    Material ore
    Ore mined 872800mt
    Accuracy Accurate
    Description 51,800 7,410 1,260 872800 Mt Grd: 6.1%Pb, 1.0%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 1260mt
    Primary Lead Lead 51800mt 6wt-pct
    Secondary Zinc Zinc 7410mt 1wt-pct
  • Year 1993
    Material ore
    Ore mined 631100mt
    Accuracy Accurate
    Description 42,870 6,190 1,000 631100 Mt Grd: 7.0%Pb, 1.2%Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Secondary Copper Copper 1000mt
    Primary Lead Lead 42870mt 7wt-pct
    Secondary Zinc Zinc 6190mt 1wt-pct

Comments on the production information

  • YEAR OF 1ST PRODUCTION, 1968. CONCENTRATOR CAP 3810 MTPD ORE TO PRODUCE 63,500 MTPY CONCENTRATES. 5 DAY WORK WEEK. ITEMS 2, 3, 4 ARE COMINCO'S MISSOURI PRODUCTION.CAPACITY OF THE MINE-MILL COMPLEX IS 1000000 TONS PER YEAR. LEAD CONCENTRATES ARE SMELTED ON A TOLL BASIS AT THE AMAX-HOMESTAKE BUICK LEAD SMELTER. ZINC CONCENTRATE GOES TO THE AMAX ELECTROLYTIC ZINC PLANT AT SAUGET, ILLINOIS. COPPER CONCENTRATES ARE PRESENTLY ( 1975 ) EXPORTED.

Reserves and resources

  • Type In-situ
    Estimate year 2008
    Total endowment 23400000mt ore
    Remarks From Leach, D.L. (USGS) significant PbZn list. His source was Bradly and Krolak, 1989.
    Commodity Subtype Grade units Group Importance Year
    Silver 10.6 g/mt Silver Secondary 2008
    Lead 7.3 wt-pct Lead Primary 2008
    Zinc 1 wt-pct Zinc Primary 2008
    Copper 0.26 wt-pct Copper Secondary 2008

Workings at the site

  • Type of workings Underground
    Overall depth 305M
    Overall width 609.6M

Comments on the workings information

  • BASIC ROOM-AND-PILLAR, TRACKLESS METHOD.

Comments on development

  • MILL$: 18.5 ; MILL.CAP: 1000 ; ECON.YEAR: 1977 ; ECON.COM: REPLACEMENT INTERGROWTHS OF GALENA AND SPHALERITE PRODUCE ENOUGH BINARY LOCKED PARTICLES TO CAUSE A PROBLEM WITH THE SMALL AMOUNTS OF ZINC IN THE LEAD CONCENTRATES; SOME OF THE SMALLER SPHALERITE GRAINS FORM LOCKED PARTICLES WITH DOLOMITE AND CARRY AMOUNTS OF MAGNESIA INTO THE ZINC CONCENTRATE. HIGH LEAD CONTENT OF THE COPPER CONCENTRATES PREVENTS THEM FROM BEING MARKETED DOMESTICALLY. WHERE SIEGENITE REPLACES SPHALERITE, INTIMATE REPLACEMENT TEXTURES LOCK THE SIEGENITE WITH THE SPHALERITE, AND IT IS REPORTED WITH THE ZINC CONCENTRATE; THE MARKETABILITY OF THE ZINC CONCENTRATE IS ADVERSELY AFFECTED.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit ORE THICKNESS IN WESTERN ORE ZONE IS COMMONLY ABOUT 35 FT. EASTERN ZONE AVERAGES ABOUT 200 FT IN WIDTH IN AN EAST-WEST DIRECTION. MAXIMUM VERTICAL THICKNESS IS ABOUT 50 FT (CENTRAL ORE ZONE, WHICH CONTAINS THE MAJOR TONNAGE OF ORE IS MINERALIZED FROM THE BASE OF THE SILTY MARKER UP TO AND ABOVE THE FALSE DAVIS). THREE ORE ZONES ARE ALL ALIGNED ABOUT PARALLEL TO THE NORTH-SOUTH AXIS OF THE VIBURNUM TREND. EAST-WEST DISTANCE ACROSS THESE THREE TRENDS IS ABOUT 2000 FT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-76 Schruben, Paul G. U.S. Geological Survey
Reporter 31-OCT-97 Unknown U.S. Bureau of Mines
Reporter 03-FEB-95 B.W.&T.D. U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references

Maps centered on this site