 | | Journal (issue) | | mineral localities: The Sapo mine, Ferruginha district, Conselheiro Pena, Minas Gerais, Brazil . . ...Bonin Fluorite from Riemvasmaak, Northern Cape Province, South Africa . . . . . . . . . . . ...gather up rocks and stones from the desert or from local quarries and then slice and mineral specimens,...Arizona, the Tucson Gem and Mineral Society, and local mining companies (including especially Phelps Dodge...Mineral Localities: The Sapo Mine Ferruginha District, Conselheiro Pena Minas Gerais, Brazil Luiz Menezes |  | | Report (issue) | | SOUTH WEST AFRICA DEPARTMENT OF Memoir No. MINES If THE GEOLOGY OF THE WARMBAD DISTRICT SOUTH...SOUTH WEST AFRICA An Explanation of Geological Sheets Amib (H-33-F), Umeis (H-34-A) and Nakop (H-34-B)...F. G. S., Geological Survey of the Union of South Africa and H. F. FROMMURZE, B. Sc., Geologist, • Geological...Geological Survey of the Union of South Africa. Published by authority of His Honour the Administrator...1936 LTD., W/.VDHOEK. The Secretary for South West Africa, Windhoek Sir, I have the honour to submit |  | | Journal (article/letter/editorial) | | Beryllium minerals (euclase and phenaIcite) from Africa. By L. J. SPENCER, M.A., Sc.D., F.R.S. Keeper of...occurrences of b e r y l l i u m minerals in the whole of Africa. Phenakite is represented b y a single small crystal...Congo and Gold Coast; and gadolinite a in Gordonia in Cape Province. A single large crystal of euclase...Territory a n d small crystals of phenakite from South-West Africa are now to be described. Euclase is a rare... Phenacite and other minerals from German East Africa. Min. Mag., 1906, vol. 14, pp. 178-183. Min. Abstr |  | | Journal (article/letter/editorial) | | United mines, Tavistock: eornubite, 2 Ford mine, South Tawton: scheelite, 921 Meldon aplite quarry, Okehampton:...uraniferous asphaltite, 705 Scalby: kaolinite, 902 South Bay, Scarborough: scarbroite, hydroscarbroite, 353...Harris Bay Steinigie, South Harris: chondrodite, humite, 910 Chiapaval, South Harris: pegmatite with...with muscovite, microcline, columbite, monazite, zircon, gahnite, kasolite, betafite(?), 373 Lock a' Sgurr...Sgurr, Loch Langevat, South Harris: pegmatite with epidote, zircon, spessartine, allanite, nraninite, thorite |  | | Report (issue) | | metasedimentary age 2.2.1 De Rust pegmatites 2.2.2 Cape Cross - Uis pegmatite belt 2.2.2.1 Strathmore pegmatites...pegmatites 2.2.4.7 Pietershill pegmatites 2.2.4.8 Davib South 2.2.4.9 Brabant (van der Made, Erongo Schlucht)...of the Damaraland Alkaline Province in central-northern Namibia (van Zjil, 1962; Verwoerd, 1967; Prins...some 30 km south of Warmbad, whereas the Sandfontein-Ramansdrift pegrnatites are located south of the Tantalite...the Kenhardt and Gordonia pegmatite districts in Namaqualand (Republic of South Africa), which hav'7 been |  | | Journal (article/letter/editorial) | | Margin of the Namaqua Metamorphic Province, South Africa Cyrille Stephane Tsakou Sonwa * , Jan van Bever...University of the Western Cape, Private Bag X17, Bellville, Cape Town 7535, South Africa; jvanbeverdonker@uwc...Margin of the Namaqua Metamorphic Province, South Africa. Minerals 2021, 11, 759. https://doi.org/10...the east. This structure, together with the more local Neusberg Thrust Fault, forms part of an intensely...Namaqua-Natal Metamorphic Province of southern Africa is part of the global Grenvillian age orogenic |  | | Journal (article/letter/editorial) | | C.B. Borwood 8f A. Wade—The Old Granites of Africa. 543 Museum. The specimen was along with a number...E OLD GRANITES OP THE TRANSVAAL AND OP SOUTH AND CENTRAL AFRICA, by CUTHBERT BARING HORWOOD, A.R.S.M....in the Dwarsberg on the Magalakwin River in the Northern Transvaal) appear interbedded in the gneisses... Also vide " Some Notes on the Geology of the Northern Transvaal", by Geo. G. Holmes (Trans. Geol. Soc...C. B. Hot-wood Sf A. Wade—T/te Old Granites of Africa. schistose rocks were laid down on an old fundamental |  | | Journal (article/letter/editorial) | | ISSUE, 253-270 (1987) Mineralized pegmatites in Africa 0. won Knorring and E. Condliffe Department of...widespread o n the African continent. especially south ol the equator. along the Kibaran orogenic belt...o prominent within the Mozambique belt in East Africa. Mozambique and Madagascar and within the Damara...s o recovered. Furthermore. w m c pcgmatites in Africa constitute the main source o f attractivc gcmstoncs...Xcnotinic Columbite-tantalite Equatorial central and south Africa Beryl Cassiterite 1. Introduction Although |  | | Book (edition) | | OF CAPE COLONY THE SOUTH AFRICAN SCIENCE SERIES. EDMONDS' for (H.) ELEMENTARY BOTANY, South Africa...PLANTS AND THEIR WAYS IN SOUTH AFRICA. By BERTHA STONEMAN, Huguenot ton, South Africa. grams, and Map. With...College, Welling- Illustrations, 3s. Dia- 6d. SOUTH AFRICAN FLOWERING PLANTS : for the use of Beginners...AND CALCUTTA. AN INTRODUCTION TO THE GEOLOGY OF CAPE COLONY BY A. W. KOGEBS, D.Sc., F.G.S. AND L...TOIT, B.A., F.G.S. OF THE GEOLOGICAL SURVEY OF CAPE COLONY WITH A CHAPTER ON THE FOSSIL REPTILES OF |  | | Journal (article/letter/editorial) | | Granites of Africa. 455 I V . — T H E OLD GRANITES OF THE TRANSVAAL AND or SOUTH AND CENTRAL AFRICA, by CUTHBERT...this globe to which man has penetrated ". South and Central Africa furnish no exception. Their granites,...the Old Granites of the Transvaal and South and Central Africa; to review and summarize the knowledge...deductions, the chief one being that in South and Central Africa there exists a fundamental or primary...the nucleus of the Cordilleras of the Andes of South America, but we were unable to find any record of |  | | Journal (article/letter/editorial) | | Constraints on Proterozoic Crustal Evolution in South-Eastern Africa B . M . E G L I N G T O N 1, R.E. H A R...Research, P.O. Box 395, Pretoria 0001 (Republic of South Africa) 2Department of Geology and Applied Geology...Geology, University of Natal, Durban (Republic of South Africa) (Received February 18, 1988; revision accepted...evolution in south-eastern Africa. Precambrian Res., 45: 159-174. Proterozoic exposures south of the imbricate...eastern sector of the Namaqua-Natal Belt of southern Africa are dominated by granitoid plutons intrusive into |  | | Journal (article/letter/editorial) | | Bushmanland, South Africa Russell Bailie Department of Geological Sciences, University of Cape Town, Private...Private Bag, Rondebosch, 7700, South Africa Present address: Paleoproterozoic Mineralisation Research Group...Box 524, Auckland Park, Johannesburg, 2006, South Africa e-mail: russellb@postgrad.uj.ac.za Richard...Sciences, University of Cape Town, Private Bag, Rondebosch, 7700, South Africa e-mail: dlr@geology.uct...of South Africa ABSTRACT The central Bushmanland portion of the Namaqua Province of South Africa is |  | | Journal (article/letter/editorial) | | deposits I. R. Plimer University of Newcastle, New South Wales, 2308, Australia Abstract. Three types of...scheelite deposits in Australia (Mt. Isa district, Qld.; Broken Hill district, N.S.W.; Olary Block, S.A.; Yilgarn...Orogen of Namibia; and the Namaqua Mobile Belt of South Africa. Tweto (1960) recognised that scheelite occurred...Scheelite occurs as beds, porphyroblasts and in local discordant features. In most places scheelite occurrences...Damara Supergroup underlies most of central and northern Namibia. The basal Abbabis Group (schists, dolomitic |  | | Journal (article/letter/editorial) | | sheet mica pegmatite mines of the Spruce Pine district, Mitchell and Yancey counties. Relatively productive...unusual locality near Tigerville, Greenville County, South Carolina, has sporadically produced exceptionally... A 2.8-cm-wide zircon crystal from Tigerville, South Carolina. Clemson University specimen, Jeff Scovil...transparent zircon crystal from the classic Mud Tank, Northern Territory, Australia, locality. Rob Lavinsky specimen...pale tan zircon crystals from Mount Malosa, Zomba district, Malawi. Lino Caserini specimen, Jeff Scovil photo |  | | Journal (article/letter/editorial) | | measure to the mineral wealth of the surrounding district, suggests the question, Has Scottish geology made...products occupy the greater part of the tract between Cape Wrath and Skye. Mr. Teall has shown that they are...hornblende, biotite, plagioclase, orthoclase, microcline, and quartz. In 1894 he advanced a classification...divided into three districts, the first extending from Cape Wrath to Loch Laxford, the second from near Scourie...the biotite gneisses are characteristic of the northern and southern tracts. These are the facts, whatever |  | | 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 (article/letter/editorial) | | 59 Two new bismuth minerals from South Africa. By EDaAa D. MOUNTAIN,M.A. :Professor of Geology in Rhodes...Grahamstown, South Africa. [P~ead March 14, 1935.] Bismoclitefrom Steinkopf, Namaqualand, Cape Province...outcrop in granite-gneiss about a mile and a half south of the Noumaas trigonometrical beacon which is situated... A colour. 1 E. D. Mountain, Pegmatites of the Cape Province. Rec. Albany Museum, Grahamstown, 1931...vol., p. 51). NEW BISMUTH MI.NERALS FROM SOUTH AFB.ICA 61 tion, b u t no a t t e m p t was made |  | | Journal (article/letter/editorial) | | constantfrom pegmatite to pegmatiteand from districtto district,thoughfew, if any, individualdepositscontainall...Lepidolite, plagioclase, quartz 9. Quartz, microcline 10. Microcline, l)lagioclase, lithia mica, quartz 11...describessamarskitereplacementunits in the Petaca district, N. Mex. Cameron et al.,.xødescribethe uranium-bearing...units which have been called zones in Colorado and South Dakota. On the basisof evidenceaccumulated in recentyearsthe...) 9 Jahns, R. H., Mica deposits of the Petaca district, Rio Arriba County, N. Mex.: New Mexico Bur. Mines |  | | Journal (article/letter/editorial) | | faces' With quartz, muscovite.Hillebrand (1891). GORDONIA, SouthAfrica (HOLMES) II92341. G.:8.876. Anal...phasediagram of the UOTUO3system. GoRDoNrA, south Africa (usNM) usNM 103596.G.:7.32. Anal 42. Sub-hedralxrs...SovietUnion. H 106038.G.:8.41. Vitreous.With microcline. MoRoGoRo Dist., Tanganyika.usNM 93290.G.:9.09...great disparity in the ease of annealing' The Gordonia (USNM) sample had virtually completed its annealing...Elvestad 900 unheated r s+ (! Gordonia (Holmes) (USNM) Gordonia Grafton A ao, A 5.4s5 .033 5 |  | | Journal (article/letter/editorial) | | Mesoproterozoic Namaqua-Natal Province of Southern Africa W.P. Colliston a , D.H. Cornell b , A.E. Schoch...Department of Geology, University of the Free State, South Africa Department of Earth Sciences, Gothenburg University...left represents the extent of the Okiep Copper District. Inset map lower right highlights the Hartbees...minerals are, in decreasing order of abundance: microcline microperthite to perthite (36%), quartz (29%)...section. The essential rock-forming minerals are microcline microperthite (49%) with occasional myrmekitic |  | Ballouard, Christophe, Elburg, Marlina A., Tappe, Sebastian, Reinke, Christian, Ueckermann, Henriette, Doggart, Shane (2020) Magmatic-hydrothermal evolution of rare metal pegmatites from the Mesoproterozoic Orange River pegmatite belt (Namaqualand, South Africa) Ore Geology Reviews, 116. 103252 doi:10.1016/j.oregeorev.2019.103252 | Journal (article/letter/editorial) | | Mesoproterozoic Orange River pegmatite belt (Namaqualand, South Africa) Christophe Ballouard, Marlina A. Elburg, Sebastian...Mesoproterozoic Orange River pegmatite belt (Namaqualand, South Africa), Ore Geology Reviews (2019), doi: https://doi...Mesoproterozoic Orange River pegmatite belt (Namaqualand, South Africa) Authors: Christophe Ballouard1*, Marlina A...Johannesburg, P.O. Box 524, Auckland Park 2006, South Africa 2 Spectrum Analytical Facility, University...Park, 2006, South Africa 3 Council for Geoscience, P.O. Box 775, Upington, South Africa, 8800 *Corresponding |  | | Book | | EarlyGermanGeologistsand Entrepreneursin South West Africa The People- Mineralogists,Geologistsand Collectors...TsumebSpecial The Otavi Mountainland The Central Northern to Northwest Region including Damaraland The Central...Nauchas-Gamsberg-Hakos Area West and South of Rehoboth The Central and South-CentralDeposits Onganja Mine and...and Surrounding Copper Deposits The South The Pegmatitesin Central Namibia Luderitz and the Diamonds ...heritage, which has over the years attracted both local researchers and scientists from all over the world |  | | 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...Ltd.) Struik House Oswald Pirow Street Foreshore, Cape Town 8001 First edition 1976 Second edition 1983...©E.K. Macintosh Cover design by Neville Poulter, Cape Town Lithographic reproduction by Tien Wah Press...Ltd, Singapore Photoset by McManus Bros (Pty) Ltd, Cape Town Printed and bound by Interpak, Pietermaritzburg |  | | Report (edition) | | EXHIBIT illustrating the Geology and Scenery of the district described in this volume is set out on the first...the Museum of Practical Geology, Exhibition Road, South Kensington, London, S. W. 7. CONTENTS PAGE I...2. Dalradian Series .. .. .. .. .. .. .. 16 (a) Local Interpretations of Succession .. .. ... .. 17 (4)...Quartz-dolerite Dykes .. .. .. 71 2. Camptonite Suite of South-west Highlands .. .. 71 3. Tertiary Dykes, Etc....Highland Granulites 5. Metamorphic Zones of the South-east Highlands, after G. Barrow . . 29 6. Diagrammatic |  | | Book | | Namibia rank amongst the top five mining countries in Africa. both in terms of production and reserves. In this...century when the Gennan Colonial Office in South West Africa appointed Government Geologists to carry out...wait until 1926, when the Geological Survey of South Africa opened a branch office under the direction of...magnetite quartzites and sedex lead-zinc deposits of South Africa (Rozendaal, 1978; 1986; Ryan et al., I986) where...molybdenumdeposits occur in YioolsdrifSuite rocks south of the Orange River. The Orange River Group and |
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