 | | Journal (article/letter/editorial) | | Kimberlite-hosted diamond deposits of southern Africa: A review Matthew Field a,⁎, Johann Stiefenhofer...Southdale, 2135, South Africa c De Beers Group Services, PO Box 47, Kimberley, South Africa d De Beers Canada...discovery of diamonds in river deposits in central South Africa in the mid nineteenth century, it was at Kimberley...economic and industrial development of southern Africa. Following the discoveries at Kimberley, even more...more valuable deposits were discovered in South Africa and Botswana in particular, but also in Lesotho |  | | Journal (article/letter/editorial) | | in the kimberlites of Lesotho, Rhodesia, Sauth Africa, and Tanzania. Six new mineral assemblages, which...amphibole-eclogite, and garnet-spinel plus garnet-corundum rocks form the new groups. 0pticaldataforkyanite...results in the series Eclogite-+Kyanite-Eclogite->Corundum-Eclogite as crystal cumulates from a melt formed...Johannesburg, South Ah'ica. ** Present address: School of Applied Geology, University of New South Wales, Kensington.... . . . . . . . . . . . . . . . . . . . . . . Corundum . . . . . . . . . . . . . . . . . . . . . . . |  | | Journal (article/letter/editorial) | | clinopyroxenes. These localities are Lovedale, Bultfontein and Roberts Victor on the Kaapvaal craton (Jacob...pyroxenites, those in field B without kyanite or corundum coexist with clinopyroxenes with intermediate...garnet pyroxenites (Group B1). The kyanite or corundum bearing samples have clinopyroxenes with up to...clinopyroxenes are still preserved in the kyanite and corundum bearing eclogites. Pristine cpx can be distinguished...are marked as ∗∗ Roberts Victor, ∗ Lovedale, ∗ Bultfontein; data from Schmidberger et al. (2007) are from |  | | Journal (article/letter/editorial) | | Geochemistry, University of Cape Town, Rondebosch, South Africa Received May 13, 1968 Abstract. The chemical...eclogite I, eclogite II, kyanite eelogite and corundum eclogite. The reasons for the differences in garnet...vast number of kimberlite occurrences in Southern Africa many are insufficiently explored in depth or too...: ~ Fig. 1. Location map of sample sites. I Bultfontein; de Beers; Dutoit)span; Kamfersdam; Kimberley...~ and RINGWOOD (1967) except that we would add corundum as a further possible minor phase. In our study |  | | Book (volume) | | PYRRHOTITE GRAPHITE CYANITE SILLIMANITE ZIRCON CORUNDUM • ACTINOLITE - AUGITE PEROFSKJTE - APATITE...DIAMOND-BEARING ALLUVIAL GRAVELS OF THE UNION OF SOUTH AFRICA DIAMOND-BEARING GRAVELS DRAINAGE WEATHERING...SYSTEMS THE ORIGIN OF THE ALLUVIAL DIAMONDS THE SOUTH-WEST AFRICA DIAMOND DEPOSITS THE VAAL RIVER ALLUVIAL GRAVELS...FROM BuLTFONTEIN - following plate MINE THIN SECTION (8, x 12) BRONZITE PERIDOTITE FROM BuLTFONTEIN 98...SECTION (176, X 12) ENSTATITE GARNET EUTECTIC FROM BuLTFONTEIN MINE - 107. THIN SECTION (390/4, x 33) EcLOGITE |  | | Journal (article/letter/editorial) | | the mantle underlying a mobile belt: Venetia, South Africa PETER DEINES,1,* FANUS VILJOEN,2 and J. W. HARRIS3...Geoscience Centre, PO Box 82232, Southdale, 2135, South Africa 3 Division of Earth Sciences, University of...of 199 diamonds from the Venetia kimberlite, South Africa, whose mineral inclusion chemistry had already...diamond formation in the mantle underlying the Limpopo Mobile Belt followed processes and involved carbon...craton. Copyright © 2001 Elsevier Science Ltd The Limpopo Mobile Belt consists of a core of Archean lithosphere |  | | Book | | collaboration. Much of my fieldwork in southern Africa has been carried out with the cooperation and assistance...7.3 2.8 2.9 Africa . . . . . . . . . . . . . . . . . . . . . . . . . . . . West Africa . . . . . . .... . . . . Central Africa. . . . . . . . . . . . . . . . . . . . . . . East Africa. . . . . . . . . .... . . . . . . . . . . . . . . . Southern Africa . . . . . . . . . . . . . . . . . . . . . U.S.S.R. . ...America. . . . . . . . . . . . . . . . . . . . .. South America. . . . . . . . . . . . . . . . . . . . |  | | Journal (article/letter/editorial) | | 3JH, UK Transactions of the Royal Society of South Africa Publication details, including instructions...DIAMOND, Transactions of the Royal Society of South Africa, 8:1, 125-136, DOI: 10.1080/00359191909519992...126 Transactions of the Royal Society of Sotdh Africa. ture to which they are exposed in the ordinary... 128 Transactions of the Royal Society of South Africa. African diamonds is so eminent that even the...180 Transactions of the Royal Society of Smtih Africa. a diamond sufficient at times to cause breakage |  | | Journal (article/letter/editorial) | | temperaturc" lherzolites in other pipes in southern Africa in that none contain coarse phlogopite. Application...from northern Lesotho and the Monastery Mine, South Africa. Both the diopside solvus and the partition...specimens of plagioclase eclogite and kyanite-corundum eclogite. These eclogites vary widely in the jadeite...Laboratories, Crown Mines, Transvaal, Republic of South Africa 528 Lherzolites, eclogites, & megacrysts...intensively studied nodule suites from Lesotho and South Africa. It is unlikely that additional sam ples from |  | | Book (edition) | | Southern Africa a Collector’s Guide ■ Rocks, Minerals and Gemstones of Southern Africa & — - ... T ~ '' .rats en&nes L of Southern Africa A Collector’s Guide - Struik Publishers (an operating...suggestions and advice. Author’s Preface Southern Africa has much to offer the amateur geologist, whatever...best plan is to take local advice wherever you are. 9 In small places try the local police station first...usually helpful and will know it there are any local gem clubs and how to get in touch with them. There |  | | Book (volume) | | THE DIAMOND MINES OF SOUTH AFRICA VOL. I THE DIAMOND MINES OF SOUTH AFRICA WILL] PORTRAIT OF GARDNER...GARDNER F. WILLIAMS. THE DIAMOND MINES OF SOUTH AFRICA BY GARDNER F. WILLIAMS, M.A. GENERAL MANAGER...interesting illustrations. GARDNER KIMBERLEV, SOUTH AFRICA, AUGUST, 1904. 9628 / F. WILLIAMS. Contents...Bartholomeu Dias A.D. Phoenicians of Sheba. around Africa, 600 B.C. Crosses at Angra Pequena and Algoa Bay... The South African . . . . .114 Journey to Grahamstown. The Mission Star of South Africa." Mining |  | | Journal (article/letter/editorial) | | pyroxenites from Kimberley, Kaapvaal craton, South Africa: their diverse origins and complex metasomatic...However, some diagnostic minerals such as kyanite, corundum and coesite may crystallize and some geochemical...dump -representing material derived from the Bultfontein mine - provided an opportunity to collect new...host magma. One sample (KimPo 8) contains minor corundum and Jacob et al. (2009) describe one kyanite bearing...were analyzed for major and trace elements, and corundum was analyzed for major elements only, using electron |  | | Book (edition) | | iMi THE DIAMOND MINES OF SOUTH AFRICA SOME ACCOUNT OF THEIR AND DEVELOPMENT RISE BY GARDNER F. ...Views of S3 at Klip-drift 56 ever found in South Africa 58 162 . Kimberley, 1872 .69 Mrs. Rawstorne...Dutoitspan Mine, 1874 Claims in Dutoitspan Mine Bultfontein The First Mine, 1879 . Rotary Washing Machine...Elevator to carry away the Tailings Washing Gear, Bultfontein Mine Steam Washing Gear, Kimberley Mine Webb's...Washing Gear, Dutoitspan Mine Washing Gear, Bultfontein Mine, 1878 ILLUSTRATIONS PAGE 268 Mr. Barney |  | | Journal (article/letter/editorial) | | from 16 intrusions in Lesotho, the Republic of South Africa, and Tanzania have been investigated. The following...some cases, zircon contents of about 25 g/t (Bultfontein, cf. HOLMLS 1936; Rietfontein, A. G. BLOOMER...Kimberley, Dutoitspan, De Beers, Wesselton and Bultfontein mines) and Nzega (Tanzania) are greyish, which...Plate 127) discovered a "zircon-pyroxenite" at Bultfontein, and believed the kimberlitic zircon to be a...(zirconia?) and fluid inclusions in a zircon from Bultfontein mine. Transmitted plane polarized light, scale |  | Woodland, Alan B., Seitz, Hans-Michael, Altherr, Rainer, Marschall, Horst, Olker, Bettina, Ludwig, Thomas (2002) Li abundances in eclogite minerals: a clue to a crustal or mantle origin?. Contributions to Mineralogy and Petrology, 143 (5) 587-601 doi:10.1007/s00410-002-0363-8 | Journal (article/letter/editorial) | | kimberlite localities in South Africa (Roberts Victor, Jagersfontein, Bultfontein, Lester), Siberia (Obnazhënnaya)...kyanite, rt rutile, qtz quartz, pl plagioclase, crn corundum, sp spinel, cc calcite, (s) secondary Sample ...Roberts Victor, South Africa JA 1 Jagersfontein, South Africa JA 4 Jagersfontein, South Africa JA 7 Jagersfontein...Jagersfontein, South Africa LE 1 Lester, South Africa LE 3 Lester, South Africa LE 4 Lester, South Africa BU 98-2...98-2 Bultfontein, South Africa OB 2 Obnazhënnaya, Russia KE 771/1 Marsabit, Kenya KE 771/3 Marsabit, |  | | Book (edition) | | OF OF SOUTH AFRICA MINES GEOLOGICAL SURVEY MINERAL RESOURCES OF REPUBLIC OF THE SOUTH AFRICA...Second World War, and partly as a result of it, South Africa experienced vast industrial expansion. This...official ‘handbook on the mineral resources of South Africa, it has become necessary to revise, or rather...great diversity and magnitude of South African mineral deposits and local mining operations, the Economic...Chamber of Mines of South Africa with Mr G. H. Grange as co-ordinator, and the South, African mining industry; |  | | Book (volume) | | rmf ' j^lr ^1 THE DIAMOND MINES OF SOUTH AFRICA VOL. II Digitized by the Internet Archive...org/details/diamondminesofso02will THE DIAMOND MINES OF SOUTH AFRICA BY GARDNER F. WILLIAMS, M.A. GENERAL MANAGER...Lapidaries in Paris Various Forms of Cutting. Louis de Berquem. Cutting and Polishing. Cleaving. ...Lapidaries. in in Produc- Orange River Colony, the South Art of Carving taught by The Modern Diamonds...Redoubts. The Soup The and Others. The Opening District. Farming. Defence of Premier Mine. Food. Beit |  | | Report (issue) | | SURVEY OF SOUTH AFRICA COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA MINERALOGY OF SOUTH AFRICA:... COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA Scientific Editor R.D. Dixon Linguistic and...Council for Geoscience (Geological Survey of South Africa), 280 Pretoria Street, Silverton, Pretoria or........................... 69 5.1 Overview of South African Occurrences ..............................LAYEREDSUITE,BUSHVELDCOMPLEX.... 111 MINERALOGY OF SOUTH AFRICA: TYPE-MINERAL SPECIES AND TYPE-MINERAL NAMES |  | | Book (volume) | | rise and development of the diamond mines of South Africa, from an historical, economic and technical...collect during my many visits to all parts of South Africa where kimberlite deposits occurred and the filing...was necessary to file * "The Diamond Mines of South Africa," by Gardner F. Williams. V . Vl l I I...my attention from the time of my arrival in South Africa was the accidental and cognate inclusions found...had collected specimens from various parts of South Africa for years, it has only been since the publication |  | | Journal (article/letter/editorial) | | 306 Traneactions of the Roya!iI Society of South Africa. A prosaic motive for the story can perhaps...region.” 0. F. Williams, ‘ The Diamond Mines of South Africa,’ p. 122, 1902. t The I‘ leaf of gold ” said...is well known, of course, that diamonds have a local individuality, and the fact has a n important bearing...from Borneo, or from the Portuguese territories in South America; nay, even the diamonds furnished by one...of other parts of Brazil, or even of the same district. B u t these characters, although sufficiently |  | | Journal (article/letter/editorial) | | garnet + spine1 (alkremite), corundum + garnet (corganite) and corundum + garnet + spine1 (corgaspinite)...the Bellsbank and Jagersfontein kimberlites, South Africa (NIXON et al., 1978; HAGGERTY, 1979; EXLEYef...modal amounts of corundum. MAZZONE and HAGGERTY (1989) coined the terms corganite (corundum + garnet) and...and corgaspinite (corundum + garnet + spinel) for these assemblages which, although chemically similar...modal corundum or may consist of a spinel-absent bimineralic assemblage of garnet and corundum (corganite) |  | | Journal (article/letter/editorial) | | than lithostatic develop in the crust during many local and regional geologic processes, predominantly tectonic..."Finch," and "Jagersfontein" kimberlite pipes in South Africa with the use of the neutronactivation method...the magmatic eclogites, which contain graphite, corundum, kyanite, rutile, and occasionally diamonds. The..."Wesselton," "Dutoitspan," "De B e e r s , " "Bultfontein," and "Monastery" pipes is 86 ± 3 m. y., and...in the "De B e e r s , " "Dutoitspan," and "Bultfontein" pipes, it is 90 ± 3 m. y . , which emphasizes |  | | Journal (article/letter/editorial) | | upper mantle beneath the Kaapvaal craton, Southern Africa A.B. Woodland , M. Koch Mineralogisches Institut...the southern flank of the Kaapvaal craton in South Africa (Kimberley, Jagersfontein, Frank Smith Mine...coverage from V80 to 220 km. For the Lesotho and South African xenoliths there is a systematic, but not...peridotite xenoliths from the Wesselton Mine, South Africa. However, a detailed analysis of the variation...mantle beneath the Kaapvaal craton of southern Africa. Thermobarometric calculations indicate that our |  | | Book | | various shades is the ordi- other colors in corundum are known as " fancy" sapphires. Olivines...Cardinal Mazarin, by whom it was bequeathed to Louis XIV. With Ten others it was stolen during the revolution...Tavernier brought from India a stone of that color for Louis XIV., of France. In the rough it weighed one hundred...carats. Its weight (Plate XVI.) The " Star of the South" was found July, 1853, in the western part of Minas...(Plate XVI.) of Baroda for £80,000. The " Star of South Africa" was the first large stone found in the Cape |  | | Report (issue) | | Kingdom . . . ... . .. (1922) Part II. Britisl1 Africa . .. . ,. . .. (1922) Par~ III. Britisl1 America...and New Zealand .. . (1922J Part VI. Europe and Africa (I!"oreign) ~ .. . (1922) Part VII. Foreign Arueriea.... ' • ' ' ' • I ' IMPERIAL INS'TITUTE SOUTH KENSINGTON, S.W. 7 The Imperial Institute was e...Rhodesia ••• •• • South~West Africa Tenitory Tanganyika Territory ••• Union of South Africa ..Canada ••• •••...Australia ••• ••• ••• New Zealand • • • ••• •• • South Georgia (Antarctica) • • • • I ♦ • • • •• |
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