Description
Unidentified Diamonds Diggers
Commodities
PrimaryDiamond
Commodity typeN
Deposit
Deposit sizeM
WorkingsSurface
Orebody formELLIPTICAL/VERTICAL
Ore controlVolcanic Crater Of Explosive Type Filled With Kimberlite
Materials
GangueGarnet, Ilmenite, Phlogopite
Geology
Host rockKimberlite · Dwyka Tillite And Shale
Associated rockGranite · Koffiefontein Kimberlite;Melaphyre And Granite
StructureAn Elliptical/Vertical Pipe In Precambrian Melaphyre And Granite And In Karroo System Dwyka Tillite And Shale, Koffiefontein Kimberlite (Cretaceous); Dwyka Tillite & Shale (Karroo) (Paleozoic); Melaphyre And Granite (Precambrian)
Tectonic settingShield
Alteration"Yellow Ground" Oxidized And Tuffaceous To Depth Of 15 M
Economic & production
Development statusProducer
First production1875
Discovery year1875
Identification
Deposit ID10089200
MRDS IDW014767
RegionAF
Data scoreB
Coordinates-29.42985, 25.0182
References
MINERAL RESOURCES OF SOUTH-CENTRAL AFRICA; PELLETIER, R. A.; 1964INTERNATIONAL DIAMOND ANNUAL; WILSON, A. N.; VOL. 1. 1971DE BEERS CONSOLIDATED MINES LIMITED, 1975, ANNUAL REPORT.COAL, GOLD AND BASE MINERALS OF SOUTHERN AFRICA.ENGINEERING AND MINING JOURNAL, 1975, ENGINEERING AND MINING JOURNAL, APRIL 1975.MINERAL RESOURCES OF THE REPUBLIC OF SOUTH AFRICA, 1972, NOVEMBER 1972.DEPARTMENT OF MINES, GEOLOGICAL SURVEY, 1976, HANDBOOK 7: DEPARTMENT OF MINES, GEOLOGICAL SURVEY, FIFTH EDITION.DE BEERS CONSOLIDATED MINES LTD ANNUAL REPORTS ; DE BEERS ANNUAL REPORT - 1984 ; DE BEERS ANNUAL REPORT-1986 ; DEBEERS CONSOLIDATED MINES LIMITED ANNUAL REPORT 1980 ; DE BEERS ANNUAL REPORT 1981 ; DE BEERS ANNUAL REPORT-1982 ; DE BEERS CONSOLIDATED DIAMOND MINES LIMITED ANNUAL REPORT 1978 ; DE BEERS CONSOLIDATED MINES LIMITED ANNUAL REPORT 1979 ; DEBEERS CONSOLIDATED MINES LIMITED ANNUAL REPORTS: 1971 - 1977 ; DE BEERS CONSOLIDATED MINES LIMITED ANNUAL REPORTS: 1971 - 1976