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Rmmm Slimes Project

Producer in South Africa with commodities Gold, Silver, Sulfur
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Nearby scientific data
  7. Economic information about the deposit and operations
  8. Ownership information
  9. Reserves and resources
  10. Workings at the site
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10280243
MAS/MILS ID 7910200187
Record type Site
Current site name Rmmm Slimes Project

Geographic coordinates

Geographic coordinates: 27.96815, -26.2299 (WGS84)

Site location context

Political divisions (FIPS codes)

South Africa(country)

Africa(continent)

Land(continent)

Geographic areas

Country
South Africa

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Sulfur Secondary

Nearby scientific data

(1) 27.96815, -26.2299
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Economic information

Economic information about the deposit and operations

Operation type Surface
Development status Producer
Commodity type Both
Significant Yes
Milling method Hydrometallurgy Unspecified

Ownership information

  • Type Owner-Operator
    Owner Rand Mines Milling And Mining Corp.
    Interest 100
  • Type Owner
    Owner Rand Mines Properties

Reserves and resources

  • Type In-situ
    Estimate year 0
    Indicated 96000000mt ore
    Demonstrated 96000000mt ore
    Total resources 96000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1 g/mt Gold Major 0
    Silver Ag 0.1 g/mt Silver Minor 0
    Sulfur S 1.7 wt-pct Sulfur Minor 0
  • Type In-situ
    Estimate year 0
    Indicated 258000000mt ore
    Demonstrated 258000000mt ore
    Total resources 258000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.43 g/mt Gold Major 0
    Silver Ag 0.04 g/mt Silver Minor 0
    Sulfur S 1.7 wt-pct Sulfur Minor 0
  • Type In-situ
    Estimate year 0
    Indicated 354000000mt ore
    Demonstrated 354000000mt ore
    Total resources 354000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.59 g/mt Gold Major 0
    Silver Ag 0.06 g/mt Silver Minor 0
    Sulfur S 1.7 wt-pct Sulfur Minor 0

Comments on the reserve resource information

  • TREATING SAND AND SLIMES FROM OLD CROWN MINES AND CITY DEEP OPERATIONS + RESERVE AT OLD CMR MINING AREA. 1986/87 PROD.= 90,472 OZ.AU FROM TREATING 6,378,000 MT OF CITY DEEP AND CROWN MINES SAND & SLIMES MATERIAL. RESERVE AS AT SEPT.30,1987 =118,000,000 MT SAND & SLIMES AT .645 G AU/MT.(INCLUDES CMR LEASE AREA) NOT UPDATED FOR THE 1992 AU AVAILABILITY STUDY (ONLY DID MAJOR UG OPERATIONS).
  • Q-MAT-3 = Q-MAT-1 + Q-MAT-2 Q-MAT-1 IS 96 M MT OF SAND DUMPS FROM 3 LEASE AREAS. Q-MAT-2 IS SLIMES DAMS OF 258 M MT. Q-MAT-3 IS TOTAL MATERIAL FOR THIS STUDY WITH WEIGHTED AVERAGE GRADE OF .59 G/MT AU, .06 G/MT AG AND 1.7 WT% OF SULFER IN PYRITE CONCENTRATE. DEV 1 REC 1 1983-1998 COMPRISED OF 67% SAND 33% SLIMES DAMS AT 4.4 M MT PER YEAR. DEV 1 REC 2 1999-2014 COMPRISED OF 69% SAND DUMPS AND 31% SLIMES DAM AT 4.4 M MT PER YEAR. DEV 1 REC 3 2015-2059 FOR 214.8 M MT OF SLIMES.

Workings at the site

  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Capacity 12600
    Capacity Units MT ORE/DAY
    Unit Production Cost .73
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1981
  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method ESTIMATE
    Capacity 12600
    Capacity Units MT ORE/DAY
    Unit Production Cost 1.64
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1981
  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 3
    Status of Mining Method ESTIMATE
    Capacity 12700
    Capacity Units MT ORE/DAY
    Unit Production Cost .29
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1981

Reference information

Bibliographic references

  • Deposit

    SOUTH AFRICA MINING AND ENGINEERING JOURNAL, SEPTEMBER, 1975

  • Deposit

    P 37.

  • Deposit

    SOUTH AFRICA MINING AND ENGINEERING JOURNAL, MARCH, 1982,

  • Deposit

    P 27.

Reporter information

Type Date Name Affiliation Comment
Reporter 28-SEP-1992 Boyle, Ed 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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