 | | Journal (article/letter/editorial) | | proximal eskers in the Lichtenburg/Ventersdorp area of the North West Province, South Africa Mike C.J. de Wit...7195, South Africa e-mail: dewit@icon.co.za © 2016 December Geological Society of South Africa Abstract...of the Lichtenburg-Ventersdorp area of the North West Province are associated with north-south orientated...(Transvaal Supergroup) at some 1,500 m elevation. East to west, this dolomite plain measures 150 km, and northsouth...the deposit is constrained by two populations of agate within the diamictites that are linked to two separate |  | | Book | | Phase 5. Sample Treatment D) World Production E) South African Diamond Occurrences 1. Large Kimberlite...kimberlites in South Africa 2.1 The Oaks 2.2 The Zebediela Kimberlites 2.3 The Bellsbank-Barkly West Area 2.4...Lace and Voorspoed 3. Alluvial Deposits 3.1 Lichtenburg and Schweizer Reneke Alluvial Deposits 3.2 The...River 3.3 Bushmanland 3.4 The Lower Orange River 3.5 West Coast Onshore Deposits 3.5.1 Koingnaas Complex 3...Port Nolloth to Alexander Bay 4. Marine Deposits (West Coast Offshore) F) Glossary of Terms Diamond Geology |  | | Book (volume) | | 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...GRAVELS OF LICHTENBURG T HE BOULDERS AND PEBBLES OF UCHTENBURG THE DIAMONDS FROM THE LICHTENBURG AREA THE... 202. 202. 203. 203. 20!. 205. SL'LICHTENBURG 205. 206. 206. 207. 207. 208. MABUKI MINE,...TANGANYIKA TERRITORY SINK-HOLE, BOTTOM OP SINK-HOLE, LICHTENBURG SINK-HOLE, RUIGTELAAGTE PoT-HoLE SINK-HoLE, WELVERDmND |  | DE WIT, M.C.J., WARD, J.D., BAMFORD, M.K., ROBERTS, M.J. (2009) THE SIGNIFICANCE OF THE CRETACEOUS DIAMONDIFEROUS GRAVEL DEPOSIT AT MAHURA MUTHLA, NORTHERN CAPE PROVINCE, SOUTH AFRICA. South African Journal of Geology, 112 (2) 89-108 doi:10.2113/gssajg.112.2.89 | Journal (article/letter/editorial) | | PROVINCE, SOUTH AFRICA M.C.J. DE WIT Department of Geology, University of Pretoria, Pretoria 0002, South Africa...co.za J.D. WARD 17 Buitekring, Stellenbosch, South Africa e-mail: jdw13@vodamail.co.za M.K. BAMFORD BPI...Witwatersrand, Private Bag 3, Johannesburg, WITS 2050, South Africa e-mail: marion.bamford@wits.ac.za M.J. ROBERTS...Johannesburg, South Africa e-mail: mike.roberts@debeersgroup.com © 2009 June Geological Society of South Africa...age have been preserved on the Ghaap Plateau north-west of Reivilo at 1455 m above sea level. The alluvial |  | | Thesis/Dissertation | | BETWEEN BARKLY WEST AND THE VAAL-HARTS CONFLUENCE IN THE NORTHERN CAPE PROVINCE, SOUTH AFRICA By FABRICE...deposits along the Vaal River, alluvial Barkly West and the Vaal-Harts confluence, have been worked... system in the area as well as the presence of local of the drainage trap sites in the river profile... Anglo-Aaerican Mines Ltd., Corporation of South Africa and De Beers Consolidated for the provision...indicator minerals. The Minerals Bureau of South Africa in Johannesburg for providing the diamond production |  | | 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 | | Mandela Metropolitan University Port Elizabeth South Africa ISSN 2364-6438 Regional Geology Reviews ISBN...Mandela Metropolitan University Port Elizabeth South Africa ISSN 2364-6446 (electronic) ISBN 978-3-319-40859-0...sill at the top of the Great Escarpment looking south, through Desolation Valley, towards the distant...Bowring traversed Cape-Karoo routes with numerous South African geologists. He recognized early on that...the USA. Sam continued to work unselfishly with South African paleontologists, under his motto ‘no dates |  | | Journal (article/letter/editorial) | | considerable variation in altitude within each district. Such deposits, frequently, lie in many tens or...of ancient man have been found in the placers of Africa. The stream divide placers include siliceous concretions...concretions, and the fragments of jasper, agate, quartzite, and various intrusive, extrusive, metamorphic...of the district. It should be stressed that the ancient placers differ radically from the local rock,...transported from beyond the boundaries of the district is as large as 90 percent. This is the basis for |  | | Report (issue) | | St. An~w•a Crescent, Cardiff 15, Donegal! Square West, Belfast or through any Bookseller to lse:_ 1933...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...Andre\v 1s Crescent, Ca.rmff J 5, Donegall Square West, Belfast or thr-ough a.n.y Bookseller 1933 Price |  | | Report (chapter) | | on June 30, 2015 Diamond mega-placers: southern Africa and the Kaapvaal craton in a global context B....Bluck@earthsci.gla.ac. uk) 2De Beers, Africa Exploration, Centurion, South Africa Abstract: Diamond mega-placers...known only from along the coast of southwestern Africa, fringing the Kaapvaal craton, where two are recognized...with the Orange-Vaal dispersal, the other, to the south, has an uncertain origin. Placers are residual when...For example, on the Kalahari craton of southern Africa the primary diamond production for the year 2003 |  | | Catalog/List | | (conlinuecl) ADAMITE CUPROADAMITE Tsumcb, S. W. Africa. $3.50. Green xlcd specimen, n x 2�". ALUNITE...about I � X 2'', $:l.50 ii ncl $2.50. Tsumeb, S. W. Africa. Choice i::-10u1> or Ja ri::c xis. ?l x 1 l". $·LOO... ARANDISITE Green masses In massive smoky South Africa. c1 uartz with small ;;rains or blaclt cussl1e1·1te...1", 50¢. Choice, xled, 1:1 x 3 x :!", $2.00. South Australia. Exceptionally choice xled s1>ccl mcns...$1.50. New South Wales. Groups or large xis, 2 x 2", $3.00; abou t 1 x 1�", $1.50. South Australia. Fine |  | | 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; |  | | Journal (issue) | | E. Spence, F.G.A. North-West Branch: M. P. Gayton, F.G.A. South Yorkshire & District Branch: I. R. M....Petrography, Heidelberg University, West Germany † Idar-Oberstein, West Germany. The Zambian emerald deposits...there were discovered seven further deposits south and south-west of Miku in the Kafubu region. The production...(microprobe) Locality colour V Cr Fe Kwale District, Kenya Lake Manyara, Tanzania Miku, Zambia green...225-35. Kanis, J. (1980) Gemstone news from Southern Africa. Z.Dt.Gemmol.Ges., 29, 55-7. Parkin, K. M., Loeffler |  | | Book | | (Shenzhen) Ltd. Discover more at www.dk.com Agate Contents 6 What is a crystal? 8 A world of crystals...meaning tree-like. They come from Broken Hill, New South Wales, Australia. Copper often forms in hydrothermal...underground. This is the Coober Pedy opal mine in South| Australia— a source of fine white | opals (pp....in large enough pieces to be cut as gemstones. Agate La: Pearl AMETHYST The most highly prized form...often found in @ cavities in basalt. Aquamarine Agate st Amazonite RARE BEAUTY BACCHUS This 19th-century |  | | Journal (issue) | | ABSTRACT Agntes did not receive any attention in South Africn, where 011/y din111onds are considered ge111sto11es...the mines being rehabilitated. A record of tl,e agate localions has become a reality, but unfortunately...promoting cut agates for jewellery in Sou then, Africa. EINLEITUNG anz egal, wen man bittet, einen schönen...Jahren 321 1 DER AUFSCHLUSS I Jg. 64 1 6 / 2013 im „South African Lapidary Magazine" erschie nen waren. Sie...Amal ia • Bloemhof Rosendal • • Hobhouse South Africa Abb. 2: Übersichtskarte zu den Fundstellen |  | | Book (edition) | | Albert Museum, and the Imperial Institute, all at South Kensington. Many of the examples referred to in...the British Museum of Natural History, also at South Kensington. NOTE TO SECOND EDITION A few minor...of the Kimberley Diamond Mine at Kimberley, South Africa - IV. {a) Crystal of Diamond in the “ Blue...diamonds were erupted into the volcanic pipes of South Africa, although it is evident that the diamonds themselves...tons, and one of spodumene weighing 90 tons in South Dakota, are records for the size of crystals; but |  | | Book | | Congress Catalog Card Number 102 Dodds Street South Melbourne 3205 91-9256 ISBN 0-442-30289-4 Victoria...Acknowledgments vii Part 1 Introduction Actinolite Agate 1 Cameo 55 55 Alabaster Alexandrite 58 58 ...effort to soothe the goddess Fortune. The Chibcha of South America offered gold and emeralds to Lake Titicaca...by Oriental society, it is little valued in the West. It is possible that the nacre necklaces of our...In 1953 he bought a 154.50-carat rough from South Africa, from which he obtained i XY VON) NAN Oi) Un) |  | | Journal (issue) | | and SHAPES In any slabbed ~ stone - jade. quartz. agate. glass. etc. Works well on Metallcs such as Sliver...Mrs. Peg Norton. President 11945 Magnolia Blvd.• North Hollywood, CA 91607 Lee Hollinshead. First Vice-President...addressed to Mrs Juanita Curios Executove Secretary 609 West 36th Street Long Stach Calo! 90806 NORTHWEST FEDERATION.............................. 38 The Diamonds of Africa, Part 2, by Victor C.G. Norwood ........................................................... 10 SOUTH CENTRAL FEDERATION OF MINERAL SOCIETIES Don Beres |  | | Journal (issue) | | Midlands Branch:D.M. Larcher, FBHI, FGA, DGA North- West Branch: 1. Knight, FGA, DGA Examiners: A. J...following sources: India, Borneo, Brazil, and South Africa. Gill (1978) mentions these same sources, but... p.596); Gill (1978, p.85); reportedly from South Africa Drukker (1971); Gaal (1977, p.241); Gill (1978...85); 'De Beers Red'; reportedly from Lichtenburg, South Africa Shepard (1934); Monnickendam (1955, p...Mineral Sciences at the Pool Mines, Kimberley, South Africa. Annales Annales Science de National Museum |  | | Journal (issue) | | 1926 . . . . . . . . . · 763 THE MINERAL BELT OF NORTH-WEST QUEBEC . · 764 . MINERAL PRODUCTION IN BRITISH...therefore, that the quality of the bauxite in this district tends to decrease after a depth of about 6 ft...India, comprising the mountainous region on the west, north and east, and including the Province of Baluchistan...Ramgarh and Karanpura fields, in the Hazaribagh district, and the Talchir field, in Orissa, are at present... Recent developments in the Bokaro field, lying west of Jharia, have proved large quantities of coal |  | | Journal (issue) | | Monica, C A Son to Monica, C A Henry 0. A. Meyer West LaFayette, Indiana C. S. Hurlbut, Jr. Sallie Morton... I The winning article, "Freshwater Pearls of North America," by James L. Sweaney and John R. Latendresse...by Keith Proctor, took us several thousand miles south, to the "Gem Pegmatites of Minas Gerais." THe first...for harvesting. Mr. Latendresse is a native of South Dakota and attended the University of Nevada. KEITH...Coronel Murta, and Barra de Salinas; and (2)farther south, the broad area surrounding the city of Governador |  | | Book | | their ample supply lies, of course, in their great local abundance in certain parts of the earth's crust...Rand gold deposits; Blind River-Algoma uranium district; Tri-State zinc and lead; Kupferschiefer copper...most important of Europe. KIRUNA DISTRICT This famous mining district is located in the northern part...part of Sweden 100 miles north of the Arctic Circle. The main deposit consists of a dikelike mass which is... syenite porphyr y Fig. 1 3. The Kiruna iron district, Sweden. No. 514, Stockholm, 1950.) "Lower Houki" |  | | Book (edition) | | cutting 6. Diamond in 'blue ground', Kimberley, South Africa 7. Graphite 5. 9 ,. , .t . 9 • 10 11...uncut Citrin, cut 36. 37. Chalcedony (carnelian) Agate, with quartz in the centre of nodule I l 38...deposited. In any one area one can recognize a local succession of rock groups. Many of these groups...chromite-rich layers of the Bushveld Complex of South Africa and the magnetite deposits . of Kiruna, Sweden...the Ural Mountains and in the diamond pipes of South Africa, the economically valuable crystals are scattered |  | | Book (edition) | | 332 : : : : 5 Se . ; 5 : 5 ees} NEW SOUTH . 304 6 : . : 5 ehste) . ; ; » 396...in good-sized lumps in the Libyan Desert in North Africa is still uncertain. The silica-glass of much...period of growth the greater is the likelihood of local disturbances. If the faces are truly TP PE Seat...earth. Then we may say that stereographically the north hemisphere is projected on to the plane of the N...N equator by joining any point on it M to the south pole. The points in which these straight lines meet | | | Book (edition) | | 6. Diamond in ‘blue ground’, Kim¬ berley, South Africa 7. Graphite 9 8. Crystal of iron pyrites...Chalcedony (carnelian) 34. Citrin, uncut 37. Agate, with quartz in the centre 35. Citrin, cut of...deposited. In any one area one can recognize a local succession of rock groups. Many of these groups...chromite-rich layers of the Bushveld Complex of South Africa and the magnetite deposits of Kiruna, Sweden...the Ural Mountains and in the diamond pipes of South Africa, the economically valuable crystals are scattered |
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Lichtenburg, Ditsobotla Local Municipality, Ngaka Modiri Molema District Municipality, North West, South Africa