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  3. Mineral Resource Data System (MRDS)

Yrapur

Producer in Karnataka, India with commodity Chromium
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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. Ownership information
  12. Production statistics
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10231010
MAS/MILS ID 5330290047
Record type Site
Current site name Yrapur
Alternate or previous names Byrapur, Hassan

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 76.41712, 13.11699 (WGS84)
Elevation 900
Location accuracy 5000(meters)

Site location context

Political divisions (FIPS codes)

Karnataka(province)

India(country)

Asia(continent)

Land(continent)

Geographic areas

Country State
India Karnataka

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Unknown
Olivine Unknown
Serpentine Unknown

Nearby scientific data

Ore Body (1) 76.41712, 13.11699
ListMap

Economic information

Ore body information

  • Strike N30W
    Dip 55E
    Thickness 9M
    Length 94M
    Width 25M
    Depth to top 130M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 DISSEMINATED
    Shape of Orebody #1 TABULAR
    Shape of Orebody #2 LENTICULAR
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control IGNEOUS
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 OTHER
    Strike And Dip N30W:55E
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. .5
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830712

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Producer
Commodity type Metallic
Significant Yes
Discovery year 1939
Year of first production 1955
Milling method Sizing

Mining district

District name Hassan Area

Ownership information

  • Type Owner-Operator
    Owner Mysore Minerals Ltd.
    Interest 100
    Home office India
    Year 1981

Comments on the ownership information

  • MYSORE MINERALS IS A PUBLIC SECTOR CONCERN COMMISIONED BY THE KARNATAKA STATE GOVT.

Production statistics

  • Year 1979
    Description 47.9% Cr2o3 15000 Mt.Ore/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Chromium Chromium 15000mt 48wt-pct

Comments on the production information

  • BASICALLY THE PRODUCT IS ENTIRELY RUN-OF-MINE ORE, ALTHOUGH SOME HANDSORT OBVIOUSLY IS DONE. PRODUCT SOLD LOCALLY AS CHEMICAL GRADE (1980-1984). PRODUCT SHIPPED TO SMELTER (1985-2028).

Comments on the reserve resource information

  • INDICATIONS ARE THAT A CERTAIN AMOUNT (SMALL) OF PRODUCTION COME FROM PITS. HOWEVER, ASSUMPTION OF THIS STUDY IS THAT THE RESOURCE TONNAGE IN Q-MAT 1- WHICH IS REPORTED BY THE COMPANY SHOULD BE CONSIDERED AS MINEABLE THROUGH UNDERGROUND METHODS.
  • CONTINUOUS PRODUCER SINCE 1914. UG SINCE 1967. FOR ANALYSIS: 15,000 MTPY ROM FOR: 14,250 MTPY LUMP AT 46.5 % CR2O3. PRODUCTS SENT TO BHADRAVATI SMELTER OF VISVESVARAYA IRON AND STEEL LTD. LOCATED IN HASSAN DISTRICT, KARNATAKA STATE.
  • 1/89 INSITU DEMO.TONNAGE = 7.7 % SURFACE MINEABLE(OREBODIES 2,3, 4 AND 92.3 % UG MINEABLE (12 MAIN LEVELS TO 270 M VERT.DEPTH).

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method HORIZ CUT & FILL W/TAILINGS 10-60
    Percent Waste Rock 5
    Percent Recovery 90
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Rock Characteristics UNKNOWN
    Rock Support Chars. SUPPORTING MAY BACK SLAB
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    1st Condition of Workings OPEN
    Capacity 52
    Capacity Units MT ORE/DAY
    Unit Production Cost 36.51
    Units of Production $/MT ORE
    Operating Days per Year 290
    Operating Shifts per Day 3
    Year of Information 1981

Comments on other economic factors

  • ORE FROM BYRAPUR IS ALSO PARTIALLY SHIPPED 100 KM TO BANGALORE WHERE IT IS SOLD TO THE CHEMICAL MARKET.

Reference information

Bibliographic references

  • Deposit

    GEOLOGICAL SURVEY OF INDIA. GEOLOGY AND MINERAL

  • Deposit

    RESOURCES OF THE STATES OF INDIA, PART VII. KARNATAKA AND

  • Deposit

    GOA. DEEMBER 1974.

  • Deposit

    INTERNATIONAL MINERALS--YEARBOOK. MACGRAW HILL. NEW YORK.

  • Deposit

    1981. (METAL YEARBOOK).

  • Deposit

    PERSONAL COMMUNICATION. GOLDER ASSOCIATES' REPRESENATIVE IN

  • Deposit

    INDIA. MYSORE MINERALS, LTD. BANGALORE. 1981

  • Deposit

    PERSONAL CONFIDENTIAL COMMUNICATIONS, WATERKLOOF CHROME

  • Deposit

    MINES PTY. LTD. 1981.

General comments

Subject category Comment text
Deposit THE BYRAPUR UNDERGROUND MINE IS DIVIDED INTO FOUR SEPARATE ORE BODIES WITH THE FOLLOWING DIMENSIONS: (A) 275 BY60 BY 12 METERS; (B) 30 BY 10 BY 8 METERS; (C) 30 BY 15 BY 10 METERS; AND (D) 40 BY 15 BY 5 METERS.

Reporter information

Type Date Name Affiliation Comment
Reporter 23-SEP-1996 Rfb 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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