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Diana

Prospect in Mozambique with commodity Diatomite
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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. Economic information about the deposit and operations
  10. Mining district
  11. Ownership information
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10023305
MRDS ID I000150
Record type Site
Current site name Diana
Alternate or previous names Cluff-Rockwood

Geographic coordinates

Geographic coordinates: 32.50138, -25.16328 (WGS84)
Location accuracy 1000(meters)
Relative position ABOUT 20 KM NW OF THE VILLAGE OF MANHICA.

Site location context

Political divisions (FIPS codes)

Mozambique(country)

Africa(continent)

Land(continent)

Geographic areas

Country
Mozambique

Commodities

Commodity Importance
Diatomite Primary

Materials information

Materials Type of material
Diatomite Ore

Analytical data

Result FOLLWING DATA IS BASED ON 3 SAMPLES. DIATOMITE CONTENT AFTER ELUTRIATION TEST: 56%, 48.5%, 77%. BASED ON 22 SAMPLES TAKEN IN 1983, THE MEAN CHEMICAL COMPOSITION IS AS FOLLOWS (STANDARD DEVIATION GIVEN IN PARENTHESES): SIO2-- 86.36% (3.84)
Result AL2O3-- 4.21% (1.25)
Result FE2O3-- 1.18% (0.35)
Result TIO2-- 0.46% (0.09)
Result CAO-- 0.5% (0.47)
Result MGO-- 0.2% (0.08)
Result NA2O-- 0.11% (0.03)
Result K2O-- 0.81% (0.17), LOI-- 6.56% (1.62). ADDITIONAL DATA ARE AVAILABLE IN CILEK, 1989.

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Sand and Gravel
    Stratigraphic age (youngest) Pleistocene
  • Host or associated Host
    Rock type Sedimentary Rock > Diatomite

Nearby scientific data

(1) 32.50138, -25.16328
ListMap

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Non-metallic
Significant No
Discovery year 1965

Mining district

District name Manhica Area

Ownership information

  • Type Owner
    Owner Cluff Resources Plc (40%), Rockwood Holdings (40%), And Government Of Mozambique (20%)

Comments on the reserve resource information

  • RESOURCE ESTIMATE IS BASED ON AN AVERAGE THICKNESS OF 3 M AND A ASSUMMED BULK DENSITY OF 0.32 KG/CUBIC CM. AS MUCH AS 50% OF THE RESOURCE COULD BE LOST DURING PROCESSING.

Comments on development

  • PARTNERS WERE GOING TO DO PRELIMINARY EXPLORATION WORK IN 1990.

Reference information

Bibliographic references

  • Deposit

    MINING JOURNAL, 1990, INDUSTRY IN ACTION: MARCH 2, 1990.

  • Deposit

    CILEK, V.G., 1989, INDUSTRIAL MINERALS OF MOZAMBIQUE: CZECH GEOLOGICAL OFFICE SPECIAL PUBLICATION, 326 P.

  • Reserve-Resource

    CILEK, 1989.

General comments

Subject category Comment text
Deposit A NEAR SURFACE RESOURCE COVERS AN AREA OF 3.6 KM BY 450 M AND PROBABLY ABOUT 9 M THICK. BODY IS ORIENTED N-S AND CONSISTS OF 3 LAYERS OF DIATOMITE SEPARATED BY SAND. THE MIDDLE LAYER IS FAIRLY SAND-CONTAMINATED. IT IS BELIEVED THAT THE DIATOMITE WAS DEPOSITED IN A BRACKISH TO FRES-WATER ENVIRONMENT.
Deposit Discovery Year: 1960'S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-90 Orris, Greta J. U.S. Geological Survey
Updater 01-MAY-95 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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