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Coalgate

Producer in New Zealand with commodity Bentonite
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Mineral occurrence model information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Ownership information
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10023337
MRDS ID I000205
Record type Site
Current site name Coalgate

Geographic coordinates

Geographic coordinates: 171.96473, -43.47985 (WGS84)
Location accuracy 5000(meters)
Relative position 65 KM WEST OF CHRISTCHURCH., Estimated, Believed To Be Within 5 Km Of Actual Location.

Site location context

Political divisions (FIPS codes)

New Zealand(country)

Australia(continent)

Land(continent)

Geographic areas

Country
New Zealand

Comments on the location information

  • DEPOSIT IS ONLY 65 KM FROM THE DEEP WATER PORT OF LYTTELTON NEAR CHRISTCHURCH. THE LATITUDE-LONGITUDE ARE FOR THE TOWN OF COALGATE.

Commodities

Commodity Importance
Bentonite Primary

Analytical data

Result FAIRLY PURE CALCIUM-MAGNESIUM BENTONITE THAT WILL CHANGE FROM NONSWELLING CLAY TO SWELLING CLAY WITH TREATMENT WITH SODIUM.

Mineral occurrence model information

Model code 189
USGS model code 28e
Deposit model name Sedimentary bentonite

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Volcanic Ash

Nearby scientific data

(1) 171.96473, -43.47985
ListMap

Economic information

Economic information about the deposit and operations

Development status Producer
Commodity type Non-metallic
Significant No
Year of first production 1970

Ownership information

  • Type Owner
    Owner Mintech

Comments on the reserve resource information

  • RESERVES ARE PROVEN.

Comments on development

  • ECON.COM: QUARRY AND PROCESSING PLANT; PLANT HAS A CAPACITY OF 30,000 TPA AND PRODUCES 6 GRADES OF BENTONITE FOR ALL APPLICATIONS IN NEW ZEALAND. THIS MINE/PLANT SUPPLIES NEW ZEALAND'S DOMESTIC MARKET WHICH IS VERY SMALL, 2-3,000 TPA. THERE IS NO NEED THEREFORE TO IDENTIFY ADDITIONAL RESERVES UNLESS OVERSEAS MARKETING IS DESIRED.

Reference information

Bibliographic references

  • Deposit

    BENBOW, JOHN, 1990, NEW ZEALAND'S MINERALS- FOR DOMESTIC CONSUMPTION: INDUSTRIAL MINERALS, NO. 273, P. 28.

  • Deposit

    THOMPSON, B.N., 1983, INDUSTRIAL MINERALS OF NEW ZEALAND: SOCIETY OF MINING ENGINEERS OF THE AMERICAN INSTITUTE OF MINING, METALLURGICAL, AND PETROLEUM ENGINEERS TRANSACTIONS, V. 274, P. 1941.

  • Production

    THOMPSON, 1983.

  • Reserve-Resource

    BENBOW, 1990.

General comments

Subject category Comment text
Deposit CALCIUM-MONTMORILLONITE CLAY OCCURS AS A SEAM WITH A THICKNESS > 65 M.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-90 Orris, Greta J. U.S. Geological Survey

Beyond USGS

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

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