Commodities
PrimaryTin
TertiaryFluorine-Fluorite, Copper, Iron
Commodity typeB
Deposit
Model44: Replacement Sn
Deposit sizeM
WorkingsUnderground
Orebody formIRREGULAR WITH MINERALIZED FISSURES & BRECCIATED FRACTURES
Ore controlSee Comments
Materials
Ore mineralsCassiterite, Chalcopyrite, Fluorite, Pyrite, Tourmaline
Other materialsMagnetite
Geology
Host rockQuartzite · Shale (Magaliesburg Stage. Pretoria Series. Transvaal System);Shaley Quartzite (Magaliesburg Stage);Crossbedded Feldspathic Quartzite (Magaliesburg Stage)
Associated rockGranite
StructureRegionally, The Area Is Dominated By Two Synclines (The Rooiberg Trough And The Elandsberg Trough) Enclosing A Broad Anticline. Two Thrust Zones Traverse The Area., Gently Dipping Host Rocks (Quartzites And Shale) Marked By Steeply Dipping Mineralized And Brecciated Fractures And Fissures. Three Pre-Mineral Thrust Faults Developed Subsequent To Regional Folding Enhance Mining With Cassiterite Concentrations But Concurrently Make Mining Difficult Because Of Major Roof Support Requirements.
Tectonic settingPlatform
AlterationNone
Economic & production
Development statusProducer
First production1908
Discovery year1905
Identification
Deposit ID10079225
MRDS IDW028274
RegionAF
Data scoreA
Coordinates-24.78, 27.73477
References
TIN MINING IN SOUTH AFRICA; SEVENTH COMMONWEALTH MINING AND METALLURGICAL CONGRESS; MCDERMOTT, E. K. AND OXLEY-OXLAND, G. ST. J.; 1961MINERAL RESOURCES OF THE REPUBLIC OF SOUTH AFRICA, FIFTH EDITION, HANDBOOK 7 ; 1976"THE ROOIBERG TIN OCCURRENCES", THE ROOIBERG MINERALS DEVELOPMENT COMPANY LIMITED ( A BRIEF OF THE COMPANY'S OPERATIONS, CIRCA 1973 )THE ROOIBERG MINERALS DEVELOPMENT COMPANY LIMITED, 1978, ANNUAL REPORTS.THE ROOIBERG MINERALS DEVELOPMENT COMPANY LIMITED, 1977, ANNUAL REPORTS.THE ROOIBERG MINERALS DEVELOPMENT COMPANY, LIMITED, 1976, ANNUAL REPORTS.THE ROOIBERG MINERALS DEVELOPMENT COMPANY, LIMITED, 1975, ANNUAL REPORTS.UNIVERSITY OF THE WITWATERSRAND, (N.D.), TIN PRODUCTION FROM THE BUSHVELD COMPLEX: UNIVERSITY OF THE WITWATERSRAND, ECONOMIC GEOLOGY RESEARCH UNIT. 253^ LENTHAL, D.H., 1972, INFORMATION CIRCULAR NO. 43: LENTHAL, D.H. 253^ LEUBE, ALFRED, 1959, STRUCTURAL CONTROL IN THE ROOIBERG TIN FIELDS: GEOLOGICAL SOCIETY OF SOUTH AFRICA SOCIETY.ROOIBERG MINERALS DEVELOPMENT CO. LTD ANNUAL REPORT ; ROOIBERG ANNUAL REPORT - 1983 ; ROOIBERG TIN ANNUAL REPORT - 1984 ; ROOIBERG TIN ANNUAL REPORT - 1985 ; ROOIBERG TIN ANNUAL REPORT-1986 ; ROOIBERG ANNUAL REPORT - 1981 ; ROOIBERG TIN ANNUAL REPORT - 1982 ; ROOIBERG TIN COMPANY ANNUAL REPORT 1980 ; ROOIBERG MINERALS DEVELOPMENT CO. LTD. ANNUAL REPORT 1979