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Langaagte Est.

Producer in South Africa with commodities Gold, Platinum, Osmium, Iridium, Ruthenium, Rhodium, PGE, Silver
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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. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10038854
MRDS ID M046322
Record type Site
Current site name Langaagte Est.
Alternate or previous names Crown Mines, Ltd.
Related records 10207465

Geographic coordinates

Geographic coordinates: 28.00146, -26.22577 (WGS84)
Relative position 5 MILES SW JOHANNESBURG

Site location context

Political divisions (FIPS codes)

South Africa(country)

Africa(continent)

Land(continent)

Geographic areas

Country
South Africa

Commodities

Commodity Importance
Gold Primary
Platinum Critical Secondary
Osmium Secondary
Iridium Critical Secondary
Ruthenium Critical Secondary
Rhodium Critical Secondary
PGE Critical Secondary
Silver Secondary

Comments on the commodity information

  • SMALL QUANTITIES PT AND AG RECOVERED BUT UNIMPORTANT IN SOUTH AFRICA TERMS. PT IS AN IMPURITY IN GOLD AND IS RECOVERED AT THE RAND REFINERY AS A CONSEQUENCE OF THE PURIFICATION PROCESS.

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Pyrite Ore
Pyrrhotite Ore
Sphalerite Ore
Uraninite Ore

Analytical data

Result COMPOSITION OF PLATINOIDS IN PERCENT: IR = 34.9, OS = 38, RU = 16.9, PT = 9.5, RH = .7

Nearby scientific data

(1) 28.00146, -26.22577
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Economic information

Ore body information

  • General form LITHIFIED PLACER

Comments on the geologic information

  • HR.AGE.MV: PEBBLY SANDY MATRIX

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No

Mining district

District name Central Rand Area

Comments on the production information

  • WORKS THE MAIN REEF GROUP. AU/PT RECOVERY = 2445:1 (AVG.)

Reference information

Bibliographic references

  • Deposit

    MERTIE, 1969, ECON. GEOL. PT METALS: USGS PROF. PAPER 630, P. 45 - 48

  • Deposit

    COUSINS, 1973, PLATINOIDS IN THE WITWATERSRAND SYSTEM: JOUR. S. AFRICA INST. MIN. AND METALL., V. 73, NO. 6, P. 3 - 5

  • Deposit

    WAGNER, 1929, PT DEPOSITS AND MINES OF S. AFRICA: STRUIK (PTY) LTD., CAPETOWN 1973, P. 32 - 40

General comments

Subject category Comment text
Deposit TWO MINES: LANGLAAGTE EST. AND CROWN MINES.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-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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