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Onverwacht Mine

Past Producer in South Africa with commodities Platinum, Osmium, Iridium, Copper, Palladium, Rhodium
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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. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10103711
MRDS ID M046283
Record type Site
Current site name Onverwacht Mine
Alternate or previous names Onverwacht Platinum, Ltd., Onverwatch 330

Geographic coordinates

Geographic coordinates: 30.17002, -24.67832 (WGS84)
Relative position 26 MILES N. 28 DEG W. OF LYDENBURG

Site location context

Political divisions (FIPS codes)

South Africa(country)

Africa(continent)

Land(continent)

Geographic areas

Country
South Africa

Commodities

Commodity Importance
Platinum Critical Primary
Osmium Secondary
Iridium Critical Secondary
Copper Secondary
Palladium Critical Tertiary
Rhodium Critical Tertiary

Comments on the commodity information

  • ROUNDED PT NUGGETS UP TO 3/8 IN. IN DIAMETER FOUND

Materials information

Materials Type of material
Chalcopyrite Ore
Pentlandite Ore
Pyrrhotite Ore
Sperrylite Ore

Analytical data

Result BEST AVERAGE TENOR PT ORE = .92 OZ/TON HANDPICKED SAMPLES: PT = 97.40%, IR+OS = 1.88%, RH = .23%
Result CRUDE PLATINUM FROM MINE OUTCROP, PT = 84%, OS+IR = 2.3%, RH = .2%, PD = .3%

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite

Nearby scientific data

(1) 30.17002, -24.67832
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Economic information

Ore body information

  • General form CARROT - SHAPED PEGMATITE
    Dip 78 DEG 30 FT
    Plunge S 28 DEG E
    Thickness 18.29M
    Depth to bottom 228.6M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No
Production years TO 1929

Mining district

District name Lydenburg District

Comments on the production information

  • PROBABLY WORKED OUT IN 1929.

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1975 Blair, Will N. U.S. Geological Survey

Beyond USGS

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

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