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Stannum Krasno

Producer in Czech Republic with commodity Tin
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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. Mineral rights holdings
  11. Ownership information
  12. Production statistics
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10255398
MAS/MILS ID 4350000047
Record type Site
Current site name Stannum Krasno
Alternate or previous names Other Name Is Krasno.

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 12.86891, 50.21542 (WGS84)

Site location context

Political divisions (FIPS codes)

Czech Republic(country)

Geographic areas

Country
Czech Republic

Commodities

Commodity Importance
Tin Critical Primary

Materials information

Materials Type of material
Cassiterite Unknown
Wolframite Unknown

Nearby scientific data

Ore Body (1) 12.86891, 50.21542
ListMap

Economic information

Ore body information

  • Depth to top 150M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 STOCKWORK
    Shape of Orebody #1 UNKNOWN
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control IGNEOUS
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 OTHER
    Minimum Depth to Top 0
    Date of Last Modification 920902

Comments on the geologic information

  • THE GEOLOGY OF THE MINE CONSISTS OF GREISEN-TYPE STOCKWORKS CONTAINING TIN AND TUNGSTEN MINERALS, WITH ACCOMPANYING MICA, TOPAZ, AND MINOR SULPHIDES. GRANITE STOCKS ARE SURROUNDED BY BARREN GNEISS. VERY OLD, SMALL SCALE MINING OPERATIONS HAD LEFT LOW GRADE REMNANTS OF ORE DOWN TO A DEPTH OF 150 METERS. THESE HAVE BEEN MINED BY OPEN-PIT METHODS. RESERVES AMENABLE TO OPEN-PIT MINING WERE EXHAUSTED IN 1987. SINCE 1980, A NEW UNDERGROUND MINE HAS BEEN DEVELOPED, WITH A MAIN WINDING SHAFT AND A VENTILATION SHAFT. ORE IS MINED BY SUB-LEVEL CAVING, TRAMMED TO ORE PASSES BY LHDS AND THEN DELIVERED TO THE MAIN SHAFT BY LOCOMOTIVES. OVERSIZE ORE IS CRUSHED UNDERGROUND. WATER INFLOW AVERAGES 4.75 CUBIC METERS PER MINUTE, BUT CAN REACH A MAXIMUM OF 11 CUBIC METERS PER MINUTE.

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Metallic
Significant Yes
Mining method Caving Methods - Sublevel Caving
Milling method Flotation

Mineral rights holdings

Type of mineral rights Unknown

Ownership information

  • Type Operator
    Owner Ore Mines Pribram
    Interest 100
    Home office Czechoslovakia
    Year 1990

Production statistics

  • Year 1984
    Accuracy Estimate
    Description Ore Throughput (Estimated) 0 Metric Tons Of Ore.
  • Year 1985
    Accuracy Estimate
    Description Ore Throughput (Estimated) 0 Metric Tons Of Ore.
  • Year 1986
    Accuracy Estimate
    Description Ore Throughput (Estimated) 100000 Metric Tons Of Ore.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Tin Tin 100000mt
  • Year 1987
    Accuracy Estimate
    Description Ore Throughput (Estimated) 40000 Metric Tons Of Ore.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Tin Tin 40000mt
  • Year 1988
    Accuracy Estimate
    Description Ore Throughput (Estimated) 0 Metric Tons Of Ore.
  • Year 1989
    Accuracy Estimate
    Description Ore Throughput (Estimated) 211200 Metric Tons Of Ore.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Tin Tin 211200mt
  • Year 1990
    Accuracy Estimate
    Description Ore Throughput (Estimated) 250000 Metric Tons Of Ore.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Tin Tin 250000mt

Comments on the production information

  • VERY OLD MINE WORKINGS EXIST DOWN TO A DEPTH OF 150 METERS. THE PRESENT MINE HAS BEEN RE-DEVELOPED SINCE 1980. NEW UNDERGROUND OPERATIONS CAME ON STREAM IN 1986. RESERVES FOR THE STANNUM MINE ARE 11,364 METRIC TONS OF PROVEN ORE AND 3,489 METRIC TONS OF INFERRED ORE. ORE-GRADE MINERALIZATION IS KNOWN TO EXIST AT OTHER LOCATIONS CLOSE TO THE PRESENT MINE WORKINGS. FOR MOBILE EQUIPMENT, THE STANNUM MINE HAS 6 PN 1500 AND PN 1700 LHDS, MADE IN CZECHOSLOVAKIA; ONE ELECTRO-HYDRAULIC LHD; FOUR ATLAS COPCO SIMBA DRILL RIGS; TWO PVN 2A CZECH DRILL RIGS; AND RP-3 AND RP-4 RAISE CLIMBERS. AN UNDERGROUND CRUSHER REDUCES ORE TO 160 MILLIMETERS. ON THE SURFACE, A GYRATORY CRUSHER AND ROD MILL REDUCE ORE TO 15 MILLIMETERS. SPIRALS, REICHERT CONES AND DEISTER TABLES YIELD A FIRST CONCENTRATE. FINE MATERIAL IS CONCENTRATED BY SKO, WILFLEY AND HOLMAN TABLES. ALL CONCENTRATES ARE DE-SULPHURISED BY FLOTATION. A MAGNETIC SEPARATOR THEN REMOVES IRON AND WOLFRAMITE FROM THE CASSITERITE.
  • THE STANNUM MINE PRODUCES TIN CONCENTRATES AND TUNGSTEN CONCENTRATES WITH HEAD GRADES, FOR THE YEAR 1989, AT .192 PERCENT TIN AND .032 PERCENT TUNGSTEN. CONCENTRATE PRODUCTION IN 1989 WAS 503 METRIC TONS OF TIN CONCENTRATE AND 66 METRIC TONS OF TUNGSTEN CONCENTRATE. THE GRADES OF THE CONCENTRATES FOR THE YEAR OF 1989 ARE 50.64 PERCENT TIN IN TIN CONCENTRATE AND 41.75 PERCENT TUNGSTEN IN TUNGSTEN CONCENTRATE. THE RECOVERY RATES FOR TIN AND TUNGSTEN ARE 62.7 PERCENT AND 40.85, RESPECTIVELY. THE 1992 MINING ANNUAL REVIEW (MAR) ESTIMATED THAT THE TIN AND WOLFRAM ORE PRODUCTION FOR CZECHOSLOVAKIA, FOR THE YEAR 1991 WAS AT 360,000 METRIC TONS.

Workings at the site

  • Type of workings Underground
    Overall depth 150M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method SUBLEVEL 10-43
    Hardness of Rock UNKNOWN
    Rock Characteristics UNKNOWN
    Rock Support Chars. UNKNOWN
    Number of Shafts 2
    1st Condition of Workings UNKNOWN
    Capacity 833
    Capacity Units MT ORE/DAY
    Operating Days per Year 300
    Operating Shifts per Day 2
    Year of Information 1989

Comments on other economic factors

  • THE DESTINATION FOR THE TIN CONCENTRATE IS THE FREIBERG SMELTER IN EAST GERMANY. THERE IS NO INFORMATION ON THE DESTINATION FOR THE TUNGSTEN CONCENTRATE.

Reference information

Bibliographic references

  • Deposit

    COMMODITIES RESEARCH UNIT LIMITED, THE BASE METAL

  • Deposit

    INDUSTRIES OF EASTERN EUROPE, PP. 91-92 (NOV. 1990).

  • Deposit

    MINING JOURNAL, LONDON, CZECHOSLOVAKIA'S MINING INDUSTRY,

  • Deposit

    P. 45 (JULY 17, 1992).

Reporter information

Type Date Name Affiliation Comment
Reporter 15-OCT-1992 Sager, Ron 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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