 | | Journal (issue) | | EDITORIAL COVER PHOTO: Bayldonite. Penberthy Croft mine, St. Hilary, Cornwall. Globular aggregates to 0...------- 16 ------THE VAN MINE S.J.S. Hughes -------26 ------A JOURNEY THROUGH NORTHERN SPAIN David I. Green... MINERAL NOTES SIEGENITE FROM ERGLODD MINE, TALYBONT, DYFED, WALES RGLODD Mine is located 200 metres east of...sphalerite (Livingstone l'I al., 1976); in the South Wales Coalfield it is found in clay-ironstone nodules...(1985) Siegenite in clayironstone nodules from the South Wales Coalfield. Joumal of the Russell Society 1 |  | | Journal (article/letter/editorial) | | Sweden (Sverige) Gladhammar mine, nickel-rich carrollite, 737 Harstig mine, Pajsberg, sarkinite, 681 Norr6...Norr6, arrojadite (hiihnerkobelite), 23o Sjo mine, Grythytte Parish, Orebro, xantharsenite, polyarsenite...Anchor point to StolJbrd rocks, Somerset, calcite, baryte, celestine, sphalerite, pyrite, chalcopyrite, analcime...Cornwall, luxullianite, 441; 442 Scar Crag, Lake District, arsenopyrite, alloclase, glaucodot, cobaltian...Court farm, Ramsgate, Kent, chalk, i6o Tynebottom mine, Garrigill, Cumbria, arsenical marcasite, gersdorffite |  | | 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 |  | | Journal (issue) | | performed by X-ray fluorescence (EDXRF) using a Tracor Northern TN 5000 system. Results in the chromium- and...Geologyofofthe theYellow Yellow Mine Mine (Taita-Taveta (Taita-TavetaDistrict, District,Kenya) Kenya) and andother...tourmaline tourmaline deposits depositsininEast East Africa Africa C.C. Simonet, M.Sc, DUG (F)(F) Simonet, M.Sc...pegmatite fromthethe John also JohnSaul SaulMine Mine(southern (southernKenya) Kenya)is is alsogiven....in east Africa; this indicates thethe differentkinds kinds geological environments east Africa; this indicates |  | | Journal (article/letter/editorial) | | selected Group II kimberlite dyke arrays in South Africa: implications for kimberlite emplacement mechanisms...Department of Geological Sciences, University of Cape Town, Rondebosch 7701 e-mail: ibasson@geology.uct...gviola@geology.uct.ac.za © 2003 Geological Society of South Africa ABSTRACT Group II kimberlite dykes occur in...fracture cleavage ahead of the dyke tip (imparting a local suction) and the low-volume, low-viscosity, highly...diatremes, typified by those in the Kimberley area of South Africa, currently command greater attention |  | | Catalog/List | | RAINBOW OF AFRICA GEM & MINERAL COLLECTION Front Cover: Gems from the Rainbow of Africa Collection... Heritage Signature® Auction #5236 The Rainbow of Africa Collection Gems & Minerals October 15, 2015 | New...Signature® Internet Session 2 Heritage Auctions Design District Annex 1518 Slocum Street • Dallas, TX 75207 (HERITAGELive...RAINBOW OF AFRICA COLLECTION You have in front of you our presentation of the Rainbow of Africa Collection:...The mineral riches of Africa are not the only things making up the Rainbow of Africa Collection. For the |  | | Journal (issue) | | cui testing in Hong Kong 691 Gem Notes Baryte from South Dakota, USA| Gems from Mong Long, Myanmar|Pyrite...Fritsch, University of Nantes, France; Rui Galopim de Carvalho, Portugal Gemas, Lisbon, Portugal; Lee A...Kettle North East – Mark W. Houghton South East – Veronica Wetten South West – Richard M. Slater For full...Mounted Diamond Screening Device In June 2017, De Beers’ International Institute of Diamond Grading &...blood ruby, royal blue and cornflower sapphire, old mine/ Muzo green emerald, sunrise and sunset padparadscha |  | | Book (edition) | | center below “Cullinan II." (or “Lesser Star of Africa’) with 317.40ct. It is the second-largest polished...Stones, in short CIBJO (Confédération Internationale de la Bijouterie, Joaillerie, Orfevrerie des Diamants...Brazilian sapphire Californian ruby Candy spinel Cape-chrysolite Cape-ruby Ceylon diamond } Ceylon opal Copper...Alexandrite Andalusite Anglesite Anhydrite Aragonite Baryte Bastite Bismutotantalite Boracite Bornite Bronzite...Coral Ludlamite 3-4 3-4 3-4 Anglesite 3-3 % Baryte 3-3 % Boleite 3-3 % Cerussite 3-3 % Celestine |  | | Journal (issue) | | Lists Updated | Opal Prospecting and Mining in South Australia | Photoluminescence Poster for Diamonds...44 By Lætitia Gilles-Guéry, Luiza Almeida Villar de Queiroz, Jurgen Schnellrath, Bear Williams, Cara...Calas 18 Demantoid Garnet from Antetezambato, Northern Madagascar—Internal Characteristics and Their...Australia | Hexagonal Growth Structures Displaying Gota de Aceite Effect in Colombian Emerald | Iolite from...California, USA Stefanos Karampelas Laboratoire Français de Gemmologie, Paris, France Lore Kiefert Dr. Lore Kiefert |  | | Book | | anniversaries Brazilianite Amblygonite Apatite Lazulite Baryte Celestine Alabaster Gypsum Sacred stones Scheelite...economy of Whitby in North Yorkshire – the principal, local source of jet – revolved around the production of...semi-metals. Some examples of sulphates include baryte, celestine, and alabaster (a variety of the sulphate...Priceless 022 INTRODUCTION ZIRCON SPINEL BARYTE TURQUOISE CAT’S EYE TANZANITE QUARTZ AMETHYST...Nigeria Fire opal Sunstone African countries Africa as a continent produces around 65 per cent of the |  | | Journal (issue) | | deposit is country and indeed the first country in Africa to not identified. Sapphires are being picked up...gemstones, have been known to produce district of the Northern Rift Valley Province, and corundum in...Ethiopian border rough has started appearing on the local market through Murangering and Lokitaung villages...in the map, is located in the Turkana district of the Northern Rift Valley Province on the west side...The electron microprobe analyses also indicated a local enrichment of iron which would suggest the presence |  | | Book | | • f" 2001. Soc1cre nouvelle Adam Biro 28, rue de Scv1gnc .,5004 Paris © 200 I, Mouawad National Company...Languagc Edition © Vilo lntcrnJtional 200 I 3P rur de Charonnc 75011 l'Jris ISBN 2-84576--0.12-9 Copyright...Sccuri,y: Michel Garmier Communlcide la B;lrie Lcg,-.l scrvi«s: Philippe Falgayrerte 1-...Dcpanmen,. Daniel Alrnulk Gerard Wejer-de-Gmode-Grood, collemon C~nicr An Coll«tion, Genova...the DTC, Diamond Trading Company, parr of the De Beers group. le enabled us co gather an extraordinary |  | | Journal (issue) | | Stevenson. This was a veritable mine of of inif one can have a mine for pearls. When formation - if I...to Constantinople as a present to the wife of a local Turkish pasha. She feared for his safety and sent...Gem thaumasite from the Black Rock Mine, South South Mrica Africa Ulrich Henn, Markus Redmann and Hermann...of have been discovered in South Africa. The locality is the Black Rock Mine in the Kalahari Manganese...""-' 1.1 I ",' . " . _ ......... .tI' Wessels Mine Black Rock A• • FRYBURG • HOTAZEL -KURUMAN |  | | Book | | anniversaries Brazilianite Amblygonite Apatite Lazulite Baryte Celestine Alabaster Gypsum Sacred stones Scheelite...metals or semimetals. Examples of sulfates include baryte, celestine, and alabaster (a variety of the sulfate...Priceless 022 INTRODUCTION ZIRCON SPINEL BARYTE TURQUOISE CAT’S-EYE TANZANITE QUARTZ AMETHYST...Nigeria Fire opal Sunstone African countries Africa as a continent produces around 65 percent of the...Topaz Tourmaline Chile Lapis lazuli Tourmaline South Africa WHERE DO GEMS COME FROM? 025 Mining for |  | | Book (edition) | | center below “Cullinan II." (or “Lesser Star of Africa”) with 317.40ct. It is the second-largest polished...Stones, in short CIBJO (Confédération Internationale de la Bijouterie, Joaillerie, Orfevrerie des Diamants...Brazilian sapphire Californian ruby Candy spinel Cape-chrysolite Cape-ruby Ceylon diamond Ceylon opal Copper lapis...Alexandrite Andalusite Anglesite Anhydrite Aragonite Baryte Bastite Bismutotantalite Thomsonite Thulite Topaz...Wollastonite Bayldonite Colemanite Parisite Prosopite Baryte Boleite Cerussite Celestine Descloizite Greenockite |  | | Book (volume) | | ANDWILLIAMSON MINE, TANZANIA H.-M. Tsai, O. A. Meyer, 0. Moreau, and H. Judith Milledge REGIONAL AND LOCAL VARIATIONS...KIFYBERLiTES IN THE COLORADO-WYC•ING STATE mINE DISTRICT 42 M. E. McCal!um, C. D. Mabarak, and H. G... K. J. Stracke, 59 OF KIMBEHLITES H.-M. IN SOUTH-EASteRN AUSTRALIA 71 J. Ferguson, an• L. P. Black...92 DYKES WITH KIMBER•.ITE AFFINITIES IN THE KIMBERLEY AREA C. R. Clement, E. M. Skinner, J. B. Hawthorne...CARBONATITEERUPTIVES AT SALTPETRE 111 KOP, SU•}tERLAND, SOU'iH AFRICA J. R. •cIver and J. Ferguson M•NERALOGY AND PETROLOGY |  | | Book (edition) | | like the pudding-stone or jasp-opal breccia of Cape Saunders. Aeolian stones are those long-stricken...Women enhance their beauty with gem stones from Kimberley, Burma, Brazil or Ceylon. King David when a shepherd-boy...woefully askew. Well, all recent trends are toward the local bright schists, granitics, marbles, facings, scorias...serpen tines, and tiles, bricks, porcelains of fine local clay. Can we be proud of this land if wc neglect...gems have seldom eye-appeal when viewed in veldt or mine. Some of our rockhounds, poking about where cataracts |  | | Book | | Nick Norman De Beers 9% os@ Ses@WO}!y 00z OS 0 (sy90J 2yew) xajdWo9 pjaAysng dnosBiadng jeersues)...NoaNo7 XN et re" De Beers o Geool E ff the Sot “Fe lhvoll exploring South Africa's hidden treasures...Solan Road, Gardens, Cape Town, 8001 PO Box 1144, Cape Town, 8000 South Africa Visit www.randomstruik...(Pty) Ltd Publisher: Pippa Parker Editor: Helen de Villiers Designer: Janice Evans llustrator & cartographer:...indexer: Emsie du Plessis Reproduction by Hirt & Carter Cape (Pty) Ltd Printed and bound by 1010 Printing International |  | | Journal (issue) | | produced at Chuncheon, Korea, since 1976. As East Africa continues to yield more gems from different localities...Ch'unch'on). Annual production of the nephrite mine (the Daeil Mine) is reported to be approximately 80 000-90...map of nephrite mine area, Chuncheon, Korea. Occurrences The geology of the nephrite mine area consists...1995,24, 8 549 Fig. 3. Mine workers remove nephrite ore at the Daeil Mine, Chuncheon, Korea. The nephrite...Acknowledgements I thank the Daeil Mine for allowing access to the mine. Thanks are also due to S.E. Lee |  | | Journal (article/letter/editorial) | | blue spherulitic aggregates at the Arhbar mine, Bou-Azzer district, Morocco. Monoclinic. Optically biaxial...given. Composition Cu2AsO4(OH )- 6H20. Named for the mine. [A.M. 68, 1038.] Arsendeseloizite. P. Keller and...As analogue of descloizite occurs at Tsumeb, SW Africa; P2t2121, a 6.075, b 9.358, c 7.634A. Tabular crystals...crusts and spherules from the Neubulach mining district, Schwarzwald, Germany, are rhombohedral, a 7.04/k...809. Crystals up to 8 mm, from the Benitoite Gem mine, San Benito Co., California, are orthorhombic, pseudotetragonal |  | | Book | | 447 467 491 Company Index 503 Tables: World Mine Production of Gold, Silver and Base Metals 5A2...Mining OFFICES: 5011 Meadowood Way Paradise Peak Mine Suite 300 (100% FMC Gold) * Sales Reno, Nevada...Elko, Nevada (303) 292-7500 Royal Mountain King Mine (100% FMC Gold) Copperopolis, California Beartrack... Gold's price fell to levels at which half the South African gold mines, probably half those in Australia...have been widespread, especially in the highcost South African mines. Some say a structural change is taking |  | | Book | | Congress Catalog Card Number 102 Dodds Street South Melbourne 3205 91-9256 ISBN 0-442-30289-4 Victoria...like to thank the members of the Haute Joaillerie de France (Designer Jewelry of France): J. Arpels (of...which made their workshop designs available; the De Beers Company of London, which kindly loaned pieces...Amster of the Compagnie Générale de Madagascar, J. Sirakian of the Taillerie de Royat, and S. Pinson of the...Argana; H. Benami, J. Cassedanne, Cl. Charensol, M. De Bry, M. Duchamp. J.-F. Sirakian, S. Ratzel-Billard |  | | Book (edition) | | gold deposits and unconformity-associated uranium de- posits. The chapter on ore genesis has been enlarged...Conseil Inter-governmental des Pays Exportateurs de Cuivre (Intergovernmental Council of Copper Exporting...where either the mineral itself, e.g. asbestos, baryte, or the oxide or some other compound derived from...communities to be plunged into unemployment because a mine or mines have become unprofitable, a need to earn...4 Rank Commodity 23 24 25 Fluorite Feldspar Baryte 26 Titania 27 28 Asbestos Fuller's earth 29 |  | | Book | | Struik Nature (an imprint of Penguin Random House South Africa (Pty) Ltd) Reg. No. 1953/000441/07 The Estuaries...Crescent), Century City, 7441 PO Box 1144, Cape Town, 8000 South Africa Visit www.randomstruik.co.za and join...Penguin Random House South Africa (Pty) Ltd Publisher: Pippa Parker Managing editor: Helen de Villiers Editor...Struik Nature. The reviewers were: Professor Johan de Villiers Department of Materials Science and Metallurgical...Pretoria, South Africa Dr Lynnette Greyling Department of Geological Sciences University of Cape Town Private |  | | Journal (issue) | | .... 4 Branch News and Winter Meeting Reports Northern Branch ......................................................... ,.......................... 7 South East Branch ......................................on the occurrence of erythrite at East Blackcraig Mine, Newton Stewart, ............................ ....take my car for a few high-speed tours round a local council estate before making a barbecue of it, thereby...ofa 'working holiday' when I was employed by a local wildlife trust to erect a choughs' nest box on a |
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