 | | Journal (issue) | | Articles Famous mineral localities: The Erongo Mountains, Namibia . . . . . . . . . . . . . . . . . . ....cm, with schorl and feldspar, from the Erongo Mountains, Namibia. Desmond Sacco collection; Bruce Cairncross...on the mineralogical treasures of the Erongo Mountains in Namibia. Uli’s financial support made possible...Rhodesia (Zimbabwe) and Tsumeb, Southwest Africa (Namibia). He had a mini-van-like truck loaded with minerals...SMALE Famous Mineral Localities: g{x Erongo Mountains Namibia Bruce Cairncross Department of Geology |  | | Report (issue) | | MINISTRY OF MINES AND ENERGY GEOLOGICAL SURVEY NAMIBIA I 1990 Open File Report MRS 05 2 Abstract A...wide variety of semi-precious stones occur in Namibia, namely amazonite, the beryl varieties, chrysocolla...the most important semi-precious stones found in Namibia. The major deposits of these semi-precious stones...Introduction Since the German colonial period Namibia has been well known for the occurrence of semiprecious...throughout Namibia. 1. AMAZONITE The most important occurrences of amazonite in Namibia are those in |  | | Book | | AiAiba / farm Anibib 136 8 Grosse Spitzkoppe, Erongo 9 , .,/, loringa tree . Khomas Highland...Aus Nature conservation, Erongo 16 Welwitschia, Goboboseb Mountains 17 . :~~..,-::__ ::...,.;_...Mountainland The Central Northern to Northwest Region including Damaraland The Central Namib Desertand...Desertand Escarpment The Spitzkoppen The Erongo Mountains The RossingMountains The Central Escarpment- The ...Copper Deposits The South The Pegmatitesin Central Namibia Luderitz and the Diamonds 44 49 241 254 272 275 |  | | Journal (article/letter/editorial) | | KèshÃkèté Qi County, Inner Mongolia Autonomous Region, China. Limpid complex fluorite crystals displaying...coloration. The fluorite mines of the Asturias region, in Spain, have produced some incredibly striking...often at shows as they once were. The Asturias region has three districts that are the most productive...Konrad 1984). Fluorite specimens from the Piemonte region of Italy are little known to most collectors in...(in German) or KruÅ¡né Hory (Czech), the Ore Mountains region that straddles the border between Germany |  | | Journal (article/letter/editorial) | | makes for great beauty and a worthy rpecimen. Cassiterite, the dioxide of tin, Si02, and all primary deposits...bodies genetically connected with them. The Erongo Mountains are a huge granite mass of Karroo System age...minerals, such as molybdenum, gold, beryl, etc., and Karibib and Usakos are real old-time mining towns. The...projectors and small-holders, and workings in the mountains are mostly for tin and beryllium. The Author visited...the ordinary tin-deposits of the Erongo Tinfields, since the cassiterite is not associated with pegmatites |  | Baldwin, J. R., Hill, P. G., von Knorring, O., Oliver, G. J. H. (2000) Exotic aluminium phosphates, natromontebrasite, brazilianite, goyazite, gorceixite and crandallite from rare-element pegmatites in Namibia. Mineralogical Magazine, 64 (6) 1147-1164 doi:10.1180/002646100549940 | Journal (article/letter/editorial) | | and crandallite from rare-element pegmatites in Namibia J. R. BALDWIN1,*, P. G. HILL2, O. VON KNORRING3...rare-element pegmatites from the KaribibUsakos area, Namibia, have been investigated using the electron microprobe...post-magmatic fluids in these pegmatites. K EY WORDS : Namibia, exotic aluminium phosphates, lithium pegmatites...common in most of the Li pegmatites in the Karibib area, Namibia, and in many instances they are the only...the economic potential of Li pegmatites in the region, specimens of amblygonite–montebrasite were collected |  | | Journal (article/letter/editorial) | | and Madagascar and within the Damara sequence in Namibia and morcovcr. within the Narnnqualand metamorphic...Columbite-tantalite Equatorial central and south Africa Beryl Cassiterite 1. Introduction Although the major granite pegmatite...Mozambique, and Madagascar, and in the Damaran of Namibia (Figure 1). One of the largest, continuous regions...in Africa, is the Namaqualand-Gordonia-Kenhardt region or the Orange River pegmatite belt which is also...pegmatites vary to a great extent from one pegmatite region to another. In some areas lithium silicates are |  | Falster, Alexander U., Simmons, William B., Webber, Karen L., Boudreaux, Andrew P. (2018) Mineralogy and Geochemistry of the Erongo Sub-Volcanic Granite-Miarolitic-Pegmatite Complex, Erongo, Namibia. The Canadian Mineralogist, 56 (4) 425-449 doi:10.3749/canmin.1700090 | Journal (article/letter/editorial) | | GEOCHEMISTRY OF THE ERONGO SUB-VOLCANIC GRANITEMIAROLITIC-PEGMATITE COMPLEX, ERONGO, NAMIBIA ALEXANDER U. FALSTER§...early Cretaceous anorogenic, sub-volcanic Erongo Granite, Namibia, was emplaced into metasedimentary rocks...Neoproterozoic to Cambrian Damaran Orogeny. The Erongo Granite contains pegmatitic miaroles containing...quartz-tourmaline orbicules and the geochemistry of the Erongo Granite. Erongo miarolitic pegmatites are famous for spectacular...negative Eu anomaly. Relative to continental crust, Erongo Granite samples are depleted in Ba, Sr, and Ti |  | Keller, Paul, Roda Robles, Encarnación, Pesquera Pérez, Alfonso, Fontan, François (1999) Chemistry, paragenesis and significance of tourmaline in pegmatites of the Southern Tin Belt, central Namibia. Chemical Geology, 158 (3) 203-225 doi:10.1016/s0009-2541(99)00045-5 | Journal (article/letter/editorial) | | in pegmatites of the Southern Tin Belt, central Namibia Paul Keller a , Encarnacion ´ Roda Robles b,) ...distinct belts within the Damara orogen of central Namibia. Many of the pegmatites have been mined extensively...pegmatite-forming fluids. As the precipitation of cassiterite requires an increase in fO 2 , such conditions...account for the distribution of tourmaline and cassiterite in different pegmatite zones. Field relations...Granitic pegmatites; Mineral chemistry; Central Namibia 1. Introduction The importance of tourmaline for |  | | Book | | Republic, 6 cm). Figure 1.2 Halite crystals (Namibia, 5.8 cm). 6 section devoted to the display of...in groups 8–12, show marked deviation. In this region of the Periodic Table, electronegativity increases...bonded substances, the electrons are confined to the region between the nuclei of the bonded atoms and they...Fluorite showing stepped, cubic crystal faces (Erongo, Namibia, 5.8 cm). hence occurs less commonly. Figure...(left, 6 cm) and grossular garnet (both from Kayes region, Mali); (C) grossular (Jeffrey mine, Canada, 5 |  | | Journal (article/letter/editorial) | | are those from the pegmatites of the New England region. From Maine, King and Foord (1994, p. 246) note...fluorapatite, ferberite, siderite, chalcopyrite, and cassiterite, among others. On display in the Smithsonian...Sarapulka district), Sverdlovskaya Oblast, Urals Region, Russia. The specimen is catalogued as a topaz...pegmatite, Eräjärvi area, Western and Inner Finland Region, Finland. Dark green pseudohexagonal crystals to...often associated with spectacular scheelite, cassiterite, and beryl (variety aquamarine) crystals. Other | | | Book | | Republic, 6 cm). 6 by Figure 1.2 Halite crystals (Namibia, 5.8 cm). section devoted to the display of such...in groups 8-12, show marked deviation. In this region of the Periodic Table, electronegativity increases...substances, the electrons are confined to the region between the nuclei of the bonded atoms and they...Fluorite showing stepped, cubic crystal faces (Erongo, Namibia, 5.8 cm). hence occurs less commonly. Figure...(left, 6 cm) and grossular garnet (both from Kayes region, Mali); (C) grossular (Jeffrey mine, Canada, 5 |  | | Journal (issue) | | Thirty-three, Number Four Articles Jeremejevite from Namibia . . . . . . . . . . . . . . . . . . . . . . . ...22/#6 Wagholi cavansite (India), Kombat mine (Namibia), Madan mines (Bulg.),Beltana mine $12 v.23/#1...Seravezza Marble (Italy) $12 v.27/#2 Onganja mine (Namibia), Lac Nicolet mine (Quebec), Afghanite $12 v.27/#3...Platinum (Russia), District! Special Otavi Mtn. Land (Namibia), OUT SOLD Issue $12 Repair & Restoration $12 v...minerals, pegmatite minerals 287 Jeremejevite from Namibia Wendell E. Wilson Mineralogical Record 4631 Paseo |  | | Catalog/List | | the Tsumeb Mine (as well as other mines of the region) were still in production in the 1970s. You will...village near the foothills of the Drakensberg Mountains, in South Africa. His love of rock climbing soon...an exciting trip by Land Rover into the Maluti Mountains of Lesotho (formerly Basutoland) to visit the...engineering work took him to the Tsumeb Mine in Namibia. This mine is renowned for producing what are arguably...desert-like "Sperrgebiet" area of the southern coast of Namibia, with its fabulous wealth of gem diamonds. One |  | | Book | | REPUBLIC OF NAMIBIA - MINISTRY OF MINES AND ENERGY GEOLOGICAL SURVEY THE MINERAL RESOURCES OF NAMIBIA FIRST...ENERGY Of the several hundred minerals present in Namibia, around sixty have been exploited. some, such as...base metals and industrial minerals have helped Namibia rank amongst the top five mining countries in Africa...terms of production and reserves. In this context, Namibia is a major producer of copper, lead, zinc, cadmium...unpublished. It is evident that mineral exploration in Namibia, as elsewhere. has changed from serendipitous discoveries |  | | Journal (issue) | | brought something else. During my latest trip to Namibia in May I heard of a remarkable find of aquamarine...black tourmaline from the "Erongo Mountains'' (i.e., Kubusis north of Karibib), vanishing under my nose...Mine (Cunningham Gulch) around 19845. The Ortiz mountains and mine are just a few miles north of the San...Andyrobertsite, calcio-andyrobertsite Tsumcb. Namibia 16-8: 10 Anglesite San Antonio Mine. Santa Eulalia...heliodor Tajikistan I 6-8: 1.3-5; aquamarine Erongo Mtns.. Namibia 16-10: 1.3-10: emerald Nuristan. Afghanistan |  | | Journal (article/letter/editorial) | | Myanmar; Yichung, China; Brazil; and probably Erongo, Namibia. The pegmatites at Ehrenfriedersdorf, Germany...00/DOI: 10.2138/am.2008.2943 minerals found in the region of the Mogok Stone Tract has led to further visits...minerals (e.g., elbaite, beryl, topaz, scheelite, cassiterite, danburite, amblygonite, and fluorite) and marble-hosted...Sin, a source of amazonite, topaz, aquamarine, cassiterite, and fluorite, in addition to the granite mineral...from open-pit mining, has also yielded beryl, cassiterite, microcline, topaz, fluorite, spessartine, and |  | | Show/Event (guide) | | Frederick A. Canfield 4 4 Minerals from the Erongo Mountain, Namibia by Georg Gebhard 6 3 We warmly welcome...crystals to 1.5 mm on and in albite and quartz; and cassiterite as dark red-brown crystals and masses to 3 mm...very F-rich systems. The association of topaz, cassiterite and ferberite, and the highly peraluminous nature...1010+/-7 to 1007+/-4 Ma) in the Hudson Highlands region of New York. Many shear zones with widths of 1-2...Fe-REE), developed in the New York Hudson Highlands region and extend to New Jersey and to Pennsylvania's |  | | Journal (issue) | | located on the slopes of the Lelatema Mountains in the Manyara Region, about 70 km southeast of the town...Goboboseb Mountains, about 35 miles west of the town of Brandberg, Daures Constituency, Erongo Region, Namibia...54, January–February, 2023 55 Figure 59. Cassiterite on Albite, 9 cm, from near Linópolis, Davino...Goboboseb Mountains, about 35 miles west of the town of Brandberg, Daures Constituency, Erongo Region, Namibia...the Merelani mine, Lelatema Mountains, Simanjiro District, Manyara Region, Tanzania. Will Johnson collection; |  | Defnet, Peter A., Wise, Michael A., Harmon, Russell S., Hark, Richard R., Hilferding, Keith (2021) Analysis of Garnet by Laser-Induced Breakdown Spectroscopy—Two Practical Applications. Minerals, 11 (7) 705 doi:10.3390/min11070705 | Journal (article/letter/editorial) | | ultraviolet, visible, and near infrared spectral region between 200–900 nm. LIBS analysis has been used...columbite group minerals for Nb and Ta, and cassiterite for Sn. LCT pegmatites are also a significant...constituents of metamorphic rocks (e.g., Osgood Mountains, NV, USA; Sierra De Cruces, Coahuila, Mexico;...Mexico) or in some cases, andradite (e.g., Erongo Mountains, Namibia). Meta-ophiolitic rocks formed by the...instrument has diminished capability in the ultraviolet region due either to reduced transmissivity of the signal |  | | Journal (issue) | | mine, Ruoqiang County, Bayinguoling Autonomous Region, Xinjiang, China. Ken Donn photo. Azurite “rose...Scovil photo. Prehnite, 13 cm, from Sandare, Kayes Region, Mali. Jeff Scovil photo. 10 Supplement to The...on chrysocolla, 13 cm, from Inca de Oro, Atacama region, Chile. Jeff Scovil photo. Smithsonite, 17 cm...Mottramite, 14 cm, from the Tsumeb mine, Oshikoto region, Namibia. Jeff Scovil photo. Goethite, 18 cm, from...Black Widow mine, Cimarron district, Sheridan Mountains, Pima County, Arizona. Joe Philpott collection; |  | | Journal (issue) | | Malay States in connection with their survey of a region where gold deposits are known to occur. The Survey... • . - • GEOLOGY AND MINERAL DEPOSITS OF ERONGO 229 rocks of the Zamfara Valley belong chiefly...Mineral Deposits of the Erongo Area, South • West Africa.-The Erongo Mountains of South West Africa have...• , • BULLETIN OF THE IMPERIAL INSTITUTE· • region was mapped by the Geological Survey of the "Qnion...the Omaruru Area (Sheet No. 71), 1939, and the Karibib Area (Sheet No. 79), 1942 .. These two reports |  | | Journal (issue) | | today are preny fami liar with specimens from Namibia. Tsumeb produced many world class specimens for...that came out during the 201h century. The Erongo Mountains beca111e well known to collectors during the...century and 111ore recently the Kaokoveld area in NW Namibia has received a lot of attention for its spectacular...minerals. What may not be so well known is that Namibia is a mineral rich country with mines scattered...Africa during the past 20 years, in particular, Namibia. He has been after us to make the journey over |  | | Journal (issue) | | chrysoberyl; petalite; pollucite; tantalite; cassiterite; apatite, monazite, and a wide variety of other...the high mountains of Afghanistan and Pakistan; Minas Gerais in Brazil; Mozambique and Namibia in Africa;...source of some amazing gem material. --.In fact, the region was one of the world's leading sources of gem tourmaline...minerals such as tourmaline, spodumene, lepidolite, cassiterite, Nb-Ta oxide minerals, and phosphate minerals...(emeralds may be found in the exometasomatic contact region of some pegmatites with mafic country rocks), most |  | | Catalog/List | | also be on the Invoice sent with the parcel. Erongo, Namibia Plumelin,Morbihan.Brit1any, France 182 â– JEREMEJEVITE...--·-- ---- ·- ----·-- ---Arnaib Fam. Erongo Mountains, Namibia 861 â– â– JEREMEJEVITE single tem1inated...Governador Valadares, Minas Gerais, Brazil £40 4. CASSITERITE water-worn pale brown, flat pebble about one...shell-like, light-weight mass about 2x3 inches Tsumeb Namibia £ I 0 1 4. ERYTHRITE pinkish crust on 8mm rock...collection Greystone quarry Cornwall £4 5 1 . CASSITERITE about 5 brown masses or just about crystal sections |
|
Erongo Mountains, Karibib Constituency, Erongo Region, Namibia