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El Mochito Mine

Producer in Santa Barbara, Honduras with commodities Copper, Gold, Lead, Silver, Zinc
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Mineral rights holdings
  12. Ownership information
  13. Reserves and resources
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10158379
MAS/MILS ID 2150330001
Record type Site
Current site name El Mochito Mine
Alternate or previous names Porvenia-Yojoa Ore Body, Main-Nueva Ore Body, San Juan Ore Body

Comments on the site names

  • MINOR ORE BODIES ARE CONCEPCION, PLOMO, SAN JORGE, 9200 PIPE AND 8700 PIPE.

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -88.07922, 14.86415 (WGS84)
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Santa Barbara(province)

Honduras(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Honduras Santa Barbara

Commodities

Commodity Importance
Copper Secondary
Gold Secondary
Lead Secondary
Silver Secondary
Zinc Critical Primary

Materials information

Materials Type of material
Argentite Unknown
Arsenopyrite Unknown
Calcite Unknown
Chalcopyrite Unknown
Galena Unknown
Magnetite Unknown
Pyrite Unknown
Pyrrhotite Unknown
Sphalerite Unknown

Nearby scientific data

Ore Body (1) -88.07922, 14.86415
ListMap

Economic information

Ore body information

  • Thickness 610M
    Length 30.5M
    Width 24.4M
    Field Value
    Type of Orebody #1 REPLACEMENT
    Shape of Orebody #1 PIPELIKE
    Shape of Orebody #2 IRREGULAR
    Primary mode of Origin CONT METASOMATIC
    Primary Ore Control FAULTING
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 CARBONATE SILIC
    Date of Last Modification 830729

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Metallic
Significant Yes
Discovery year 1938
Mining method Combined Methods
Year of first production 1948
Milling method Flotation

Mining district

District name Lago De Yojoa

Mineral rights holdings

Type of mineral rights Unknown

Ownership information

  • Type Owner-Operator
    Owner American Pacific Mining
    Interest 100
    Year 1989

Comments on the production information

  • SILVER RECOVERIES ARE FOR BOTH CONCENTRATES; A MAJORITY OF THE CONTAINED SILVER IS IN THE LEAD CONCENTRATE.

Reserves and resources

  • Type In-situ
    Estimate year 1974
    Indicated 5257000mt ore
    Demonstrated 5257000mt ore
    Total resources 5257000mt ore
    Commodity Subtype Grade units Group Importance Year
    Lead Pb 8.6 wt-pct Lead Minor 1974
    Zinc Zn 5.1 wt-pct Zinc Major 1974
    Copper Cu 0.26 wt-pct Copper Minor 1974
  • Type In-situ
    Estimate year 1974
    Measured 2506000mt ore
    Demonstrated 2506000mt ore
    Total resources 2506000mt ore
    Commodity Subtype Grade units Group Importance Year
    Lead Pb 7.53 wt-pct Lead Minor 1974
    Zinc Zn 2.8 wt-pct Zinc Major 1974
    Silver Ag 116.5 g/mt Silver Minor 1974
    Gold Au 0.68 g/mt Gold Minor 1974
    Copper Cu 0.37 wt-pct Copper Minor 1974
  • Type In-situ
    Estimate year 1974
    Measured 1633000mt ore
    Demonstrated 1633000mt ore
    Total resources 1633000mt ore
    Commodity Subtype Grade units Group Importance Year
    Lead Pb 10.9 wt-pct Lead Minor 1974
    Zinc Zn 10.5 wt-pct Zinc Major 1974
    Silver Ag 417.4 g/mt Silver Minor 1974
    Gold Au 2.74 g/mt Gold Minor 1974
    Cadmium Cd 0.0009 wt-pct Cadmium 1974
  • Type In-situ
    Estimate year 1993
    Demonstrated 4330000mt ore
    Total resources 4330000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 7.92 wt-pct Zinc Major 1993
    Lead Pb 1.89 wt-pct Lead Minor 1993
    Silver Ag 77 g/mt Silver Minor 1993

Comments on the reserve resource information

  • MINE RECOVERY IS ASSUMED TO BE 90%, DILUTION, 10%.
  • DATA FROM PAH REPORT.

Workings at the site

  • Type of workings Underground
    Overall depth 650M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method COMBINED METHODS
    Percent Recovery 85
    Hardness of Rock HARDROCK FISSURED WITH EXCESSIVE WATER
    Rock Support Chars. SUPPORTING WHEN DRY
    Mine Support Chars. TIMBER W/LAGGING CONCRETE-UNREINFOR
    Number of Shafts 3
    Number of Adits 01
    Capacity 1775
    Capacity Units MT ORE/DAY
    Operating Days per Year 360
    Operating Shifts per Day 3
    Year of Information 1989

Comments on other economic factors

  • CONCENTRATES ARE ALSO SOLD TO JAPAN AND EUROPEAN COUNTRIES.

Reference information

Bibliographic references

  • Reserve-Resource

    METALS WEEK, SEPTEMBER 7, 1992. "BREAKWATER RESORCES' NEW

  • Reserve-Resource

    ORE BODY". PG. 2.

  • Reserve-Resource

    AME MINERAL ECONOMICS QUARTERLY MINE ANALYSIS, JUNE, 1993,

  • Reserve-Resource

    PP. 38, 43, 48.

  • Deposit

    E/MJ INTERNATIONAL DIRECTORY OF MINING 1980, P. 229.

  • Deposit

    MINING MAGAZINE,SEPT.1976.V.133,NO.9,P.241.

  • Deposit

    MCQUISTON,F.W.&R.S.SHOEMAKER,"GOLD&SILVER CYANIDATION PLANT

  • Deposit

    ICE MONOGRAPH,AIME,1975,P.163-164.

  • Deposit

    WORLD MINING,FEB.1971,V.24,NO.2,PP.42-45.

  • Deposit

    U.S.G.S.BULL.1034.

  • Deposit

    MIN.YEARBOOK,V.III,MIN.INDUSTRY OF CENT.AMERICA,PP.1007-1008

  • Deposit

    PRIVATE REP.-1975.

  • Deposit

    E/MJ, NOV. 77, HONDURAS, DEVELOPMENT STALLED BY TAX LAWS,

  • Deposit

    P. 166.

  • Deposit

    E/MJ, OPERATING HANDBOOK OF UNDERGROUND MINING, VOL. 3, 1978

  • Deposit

    EL MOCHITO, A GOOD MINE TAXED TO THE HILT,PP.315-321

General comments

Subject category Comment text
Deposit 76-RCD 030-5 KM W OF LAKE YOJOA,ACCESS BY ROAD FROM SAN PEDR 82 KM N. 76-RCD 060-ANDESITE DIKES CUT LIMESTONES AND ARGILLITES;IN S INSTANCES CONTAIN HIGH AG VALUES. 76-RCD 080-ORE BODIES ARE IRREGULAR PIPE-LIKE SULFIDE REPLAC NEARLY VERTICAL AND SEEM TO BE LOCATED ALONG STRUCTURAL IN -IONS-PIPES COALESCE AT DEPTH TO FORM 2 "ROOTS"-NR.SURFACE -SION IS AS NUMEROUS FINGERS,CONTRAST BETWEEN ORE&WASTE US IRREGULAR. 76-RCD 601-GR.&TONNAGE FOR COL.1 ARE PROVED&PROB.FROM 1975 E ,FOR COL.2:GR.&RES.OF SAN JUAN OREBODY OPENED FOR MINING I AND PLANNED TO PRODUCE AT RATE OF 123,350 TONNES/YR.;COL.G TONNAGE FOR MAIN MINING AREA-1974 RESERVES;COL.4:MILL HEAD FOR 1974. 76-RCD 620-2 SHAFTS AT 2200 FT.LEVELS IN 1974,MINING METHOD: OF MANY OREBODIES(43 STOPES IN 1971), FILL WITH WASTE,ORE H BY RAIL IN TUNNELS (SUBLEVELS),ORE AND WASTE PASSES NECESSA PROD.COST IS TOTAL FOR MINING AND MILLING.HAULAGE BY TRUCK ONE MILE TO FLOT.-CYANIDATION PLANT.CAP.INC.TO 417,200 TON 76-RCD 651-654-PB&ZN CONCS. PROD. BY FLOTATION,TAILINGS FROM FED TO CYANIDATION SECTION FOR AU & AG RECOV.CYANIDATION PLA 18 AGITATORS IN SERIES AND WASHING THICKENERS IN PARALLEL; POWER REQS.OF 46.2 KWH/TON,WATER REQS.(RECLAIMED & NEW) OF 5 PER TON.1974 PROD.:ZINC CONC.- 46,361 TONNES (55% ZN), LEAD 34,634 TONNES (60% PB), DORE BULLION-266,296 OZ. AG & 288 OZ. AU LEAD CONCS. CONTAINED 2,447,910 OZ. AG & 1,468 OZ. AU, ZN CON CONTAINED 688,083 OZ.AG & 720 OZ.AU IN 1973. SMELTING COSTS IMATELY $28.25 PER TONNE ORE MILLED. MILLED 282,599 TONNES, MILL AVGS. 90% RUNNING TIME 76-RCDS 660-662-ASSUMED SHIPMENT TO PUERTO CORTEZ,130 KM. N. MINE CLOSED IN 1987 FROM APRIL TO OCTOBER DUE TO ECONOMIC REASONS.

Reporter information

Type Date Name Affiliation Comment
Reporter 09-FEB-1995 Difrancesco, Carl A. U.S. Bureau of Mines

Beyond USGS

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

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