Commodities
PrimaryTin
SecondaryIron, Copper, Arsenic, Lead
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formIRREGULAR
Ore controlOre Is Contained In Fissures In Felsite And The Intercalated Sedimentary Bed ("Union Shale") Only. Cassiterite Is Extremely Fine-Grained And In All Instances Replacement Lodes.
Materials
Ore mineralsCassiterite, Chalcopyrite, Galena
Other materialsHematite, Magnetite
Geology
Host rockShale · The Union (Argillaceous) Shale, Interbedded In The Rooiberg Felsite, Pretoria Series, Transvaal System
Associated rockGranite · Rooiberg Felsite, Pretoria Series, Transvaal System
StructureGently Dipping Regionally, With No Major Structural Disturbances., Steeply Dipping Locally, Flattening At Depth. Faulting And Folding Occurs, But Not Considered To Be Of Major Importance.
Tectonic settingPlatform
AlterationNone
Economic & production
Development statusProducer
First production1953
Discovery year1909
Identification
Deposit ID10107357
MRDS IDW028275
RegionAF
Data scoreB
Coordinates-24.48001, 28.51809
References
MINERAL RESOURCES OF THE REPUBLIC OF SOUTH AFRICA, FIFTH EDITION, HANDBOOK 7 ; 1976"SOME ENIGMA'S OF THE BUSHVELD IGNEOUS COMPLEX"; UNIVERSITY OF THE WITWATERSRAND, ECONOMIC GEOLOGY RESEARCH UNIT; INFORMATION CIRCULAR NO. 92 ; HUNTER, D. R.; CIRCA 1975UNION TIN MINES LIMITED, 1978, ANNUAL REPORTS.UNION TIN MINES LIMITED, 1977, ANNUAL REPORTS.UNION TIN MINES, 1976, ANNUAL REPORTS.UNION TIN MINES, 1975, ANNUAL REPORTS.UNIVERSITY OF WITWATERSRAND, (N.D.), TIN PRODUCTION FROM THE BUSHVELD COMPLEX: UNIVERSITY OF THE WITWATERSRAND, ECONOMIC GEOLOGY RESEARCH UNIT.LENTHALL, D.H., 1972, INFORMATION CIRCULAR NO. 43.UNION TIN MINES LTD ANNUAL REPORTS ; UNION TIN ANNUAL REPORT - 1983 ; UNION TIN ANNUAL REPORT - 1984 ; UNION TIN ANNUAL REPORT - 1985 ; UNION STEEL ANNUAL REPORT-1986 ; UNION TIN ANNUAL REPORT - 1981 ; UNION TIN ANNUAL REPORT - 1982 ; UNION TIN ANNUAL REPORT 1980 ; UNION TIN MINES LIMITED ANNUAL REPORT 1979