 | | Report (issue) | | SURVEY NAMIBIA 1990 Open File Report MRS 12 2 Abstract Niobium-tantalum mineralisation in Namibia occurs...by-products of Tin-mining operations in central Namibia (Uis, Nainais, De Rust). Prominent niobium-tantalum...pegmatites occur in the Tantalite Valley in southern Namibia and have been mined for a long time on a small...2.2.3.7 Pistelwitz pegmatites 2.2.4 Sandamap - Erongo pegmatite belt 2.2.4.1 Gossow pegmatites 2.2.4...4.8 Davib South 2.2.4.9 Brabant (van der Made, Erongo Schlucht) pegmatite 2.2.4.10 Okawayo pegmatites |  | | 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 | | Twyfelfontein 7 AiAiba / farm Anibib 136 8 Grosse Spitzkoppe, Erongo 9 , .,/, loringa tree ...station Garub near Aus Nature conservation, Erongo 16 Welwitschia, Goboboseb Mountains 17 ....Mineralogists,Geologistsand Collectors 21 27 29 37 Minerallocalities The North TsumebSpecial The Otavi...Northwest Region including Damaraland The Central Namib Desertand Escarpment The Spitzkoppen The Erongo Mountains...s Onganja Mine and Surrounding Copper Deposits The South The Pegmatitesin Central Namibia Luderitz and |  | | Journal (article/letter/editorial) | | gemmy, intense purple apatites from this pegmatite mine have made Pulsifer the premier locality for fluorapatite...variety of orthoclase, the pericline variety of albite, calcite, epidote, muscovite, quartz, titanite...University, Oxford, Ohio. Figure 1. Fluorapatite on albite with chlorite, 11.5 cm tall, Acushnet quarry, Bristol...any more material. They found pericline variety albite coated and uncoated with chlorite and a few small...find what was left. ❑ Figure 3. Fluorapatite on albite with chlorite, 7.1 × 5.0 × 3.5 cm, Acushnet quarry |  | | Catalog/List | | first offered for sale. 73007 TOURMALINE Minh Tien Mine, Luc Yen, Yenbai Province, Vietnam A classic Vietnamese...online, visit HA.com/6150 73008 ELBAITE Minh Tien Mine, Luc Yen, Yenbai Province, Vietnam This unusual...2015 | 12:00 PM CT 15 73009 ELBAITE Minh Tien Mine, Luc Yen, Yenbai Province, Vietnam Clearly defined...coloration, this is a classic Vietnamese Tourmaline. The region of Luc Yen has been yielding Tourmalines since...PYROMORPHITE Daoping Mine, Gongcheng Co., Guilin Prefecture, Guangxi Zhuang Autonomous Region, China Daoping |  | | Book | | .,,., ..,,.... w + ..... . ·. .... . - Namibia Zauberwelt edler Steine und Kristalle ooa Dieses...Erdgeschichte 8 Zur Geschichte des Bergbaus in Namibia 17 Der Brandberg und die Mineralfunde in seiner...blaue Wunder vom Erongo - Auf Aquamarin-Jagd im Innern Namibias 72 Miarolen im Erongo-Granit- ein Eldorado...Riesenquarze von Otjua 110 Auf Turmalinsuche in Namibia Die Demantoide von Tubussis in Zentral-Namibia 112 116...Zeolithe vom Grootbergpaß in Namibia Kamphaugit-(Y) von der Rössing-Mine 120 124 126 136 Das Gahnit-Vorkommen |  | | Journal (issue) | | the Merelani mine, located on the slopes of the Lelatema Mountains in the Manyara Region, about 70 km...cover: Top left: Euclase, 2.2 cm, from the La Marina mine, Colombia. Top right: Topaz, 8.4 cm, from Ouro Preto...left: Phosphophyllite, 2 cm, from the Unificada mine, Potosi, Bolivia. Bottom right: Grossular, 3.5 cm...of the town of Brandberg, Daures Constituency, Erongo Region, Namibia. The occurrence was discovered in...Fluorapatite on elbaite, 5.5 cm, from the Alto da Cabeca mine, Parelhas, Rio Grande do Norte, Brazil. Will Johnson |  | | Journal (article/letter/editorial) | | ASPECTS OF THE GENESIS AND SEQUENCE OF THE KARIBIB SOUTH WEST CRYSTALLIZATION PEGMATITES, AFRICA...Conclusions concerningthe crystallizationsequence of the Karibib pegmatites ......................................on of pegrnatites ... 1079 Implicationsof the Karibib investigation............................. Towardsa...lithium- and beryllium-bearingpegmatites of the Karibib area have been studied in detail with regard to...economically mineralizedpegmatitesin the vicinity of Karibib, South West Africa. Thesebodiesconstitute one of |  | | 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 (article/letter/editorial) | | study from the Pan-African Damara granitoids of Namibia Received: 24 April 1995/Accepted: 11 December...granitoids from the Pan-African Damara mobile belt (Namibia), many of the leucogranites and Salem-type granitoids...geological map of the Pan-African Damara belt of Namibia showing the distribution of the major granitoid...6 Salem Goas granite, 7 Salem Onanis granite, 8 Otjua red granite, 9 Swakopmund Salem granite, 10 Goanikontes...from the Pan-African Damara orogen of Central Namibia, and in a new approach, we attempt to model the |  | | Journal (article/letter/editorial) | | poorexposure andthe complicated tectonichistoryof the region,the ageof the mica-defined fabriccan rarelybe determined...moreof tourmaline; BatesandJackson, 1987)andzonesof Namibia (Stevenet al., 1994) hasled to the identificationof...morphology of TOURMALINITE MINERALIZATION, KUISEBFM.,NAMIBIA 120 _ • 140 160 1099 180 200 q. -t. ANGOLA...Fig.4) TOURMALINITEMINERALIZATION, KUISEBFM., NAMIBIA 15øE I km 16OE 50 I NORTHERN + 1101 ZONE...21øS Area of Fig. 4 Otjua Tungsten AINAISOHERO TIN 21os Prospect BELT Otjua o+_•ani Ohere OosJ |  | | Journal (article/letter/editorial) | | glaucophane and muscovite + biotite + chlorite + quartz + albite have been determined, and P–T conditions are estimated...Hodgson, 1982; Kara from Zaw and Singoyi, 2000; Otjua from Steven and Moore, 1994); (b) distribution diagram...in the early prograde skarns such as Mac Tung, Otjua, Los Santos and Pine Creek (Fig. 7a). These clinopyroxene... similar evolution to those from the Mac Tung, Otjua, Pine Creek and Los Santos skarns. The grossular...zone. The length of these inclusions is Fig. 9. Albite–Anorthite–Orthoclase diagram showing compositional |  | Alaminia, Zohreh, Mehrabi, Behzad, Razavi, Seyed Mohammad Hossein, Tecce, Francesca (2020) Mineral chemistry, petrogenesis and evolution of the Ghorveh-Seranjic skarn, Northern Sanandaj Sirjan Zone, Iran. Mineralogy and Petrology, 114 (1) 15-38 doi:10.1007/s00710-019-00688-6 | Journal (article/letter/editorial) | | of calcite± clinopyroxene± tremolite± epidote ± albite± opaque± titanite showing predominantly greenschist...on each background. Calibration standards were albite (Na), orthoclase (K), corundum(Al), wollastonite...Pine Creek, California from Newberry 1982; Otjua, Namibia from Steven and Moore 1994; Kara, Tasmania...Pine Creek, California from Newberry 1982; Otjua, Namibia from Steven and Moore 1994; Kara, Tasmania...quartz-garnet zone shows a similar evolution to those of Otjua and Cantung skarns (Fig. 6a). The subcalcic garnets |  | | Journal (article/letter/editorial) | | is the well-known pyrite “sun” from the Ziegler mine, Randolph County, Illinois. This 7.4-cm specimen...provenance, and perhaps even poles” of the Cochran mine, Georgia; and the magnificent and Geography “who”—those...Swakopmund, Namibia. The 14,100-kilogram group of quartz crystals is from the Otjua mine, Namibia. Tony Kampf...and above). Two photographs of the same Rogerley mine, England, fluorite specimen: in artificial light...malachite after azurite crystals from Tsumeb, Namibia, and from Bisbee, Arizona; malachite after cuprite |  | | Journal (issue) | | the Elbaite candelabra from the Tourmaline Queen Mine in California. Source: Smithsonian Institution;...around Pala, CA, and specifically at the Stewart Mine, rubellite forms crystals in a sparkling matrix...been lucky enough to go underground at the Stewart Mine and have been able to collect on the dumps a couple...Exposition, where they built a mockup of the Pala Chief Mine for Exposition visitors to walk through. Exhibition...featured a replica of part of the Tourmaline King Mine— with sales of crystals and jewelry, of course. |  | | Book | | NATIONAL MUSEUM IN SOFIA 66 OTHER COLLECTIONS OF MINE IN BULGARIA 71 COLLECTIONS IN OTHER CITIES AROUND... was born on 3 August, 1921, in Zlokuchen (the region of Shumen), situated in the beautiful valley of...militiaman walking on the platform (a former classmate of mine from the secondary school who was expelled for bad...drawn. I learned from some students, friends of mine, that in the city of Graz, situated in the British...was very glad when I started working in a silver mine, not far from Lima. It was for the first time in |  | | Book | | was a site on what was known in 1887 as the Yale Farm, about two miles northeast of the town of Litchfield...localities for good ilmenite crystals exist in the region (Brunet, I 977b ). NEW YORK Amity, Orange County...Springfield show ( 1995: 582). Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's...property of, the old Madawaska uranium mine (called the Faraday mine before 1964). The mineral assemblage...Cowgill, 1977). LATINAMERICA BRAZIL Jacupiranga mine, Sao Paulo. Among the crystallized minerals in the |  | | Journal (issue) | | Tourmaline Queen mine, San Diego County, California. BACK COVER: Copper, 13.5 cm, from the Ray Mine, Pinal County...Malachite 41, 119, 182 Manganite 105 Phosphophyllite 37 Proustite 107 Pyrargyrite 49, 117 Pyromorphite 65...a superb crystal of kunzite from The White Queen mine in California lends important provenance to the...the White Queen mine, California (plate 8) The Cerussite from the Kombat mine, Namibia (plate 19) The...Tourmaline Queen mine, California (plate 31) "The Dragon" Gold from the Colorado Quartz mine, California (plate |  | | Journal (issue) | | Peter Richards & D. G. Howard The Pezinok antimony mine, Male Karpaty Mountains, Slovakia................. large format. by Ed Clopton and Wendell Wilson $37 Circulation Manager Mineralogical Record P.O. Box...impossible in a real twinned crystal, because any small region of the twin must have a structure which corresponds...Senkvicka 5, 902 01 Pezinok, Slovakia T h e P ezin o k mine, an antim ony deposit m ined since 1 9 4 0 , has...the locality. INTRODUCTION The Pezinok antimony mine in southwestern Slovakia is a relatively small ore |  | | Journal (issue) | | on p. 79 Articles Native gold from the Jamestown mine, Tuolumne County, California......................collectors interested in visiting the Blanchard mine or other mines in the Hansonburg mining district...signed in at Bingham for entry to the Blanchard mine area for surface collecting. Underground collecting...strictly prohibited due to the hazardous nature of the mine workings, and visitors are required to acknowledge...agreement to collect in the area. The Blanchard mine will be closed to the general public until further |  | | Book | | other issues of the same volume will be referenced: 8:37-42 PAGINATION The following table of pagination...On a spectacular find of crocoite in the Adelaide mine, Dundas, Tasmania (by A. H. Chapman) 3:111-113 ADOLFSSON...AJO Famous mineral localities: the New Cornelia mine, Ajo, Arizona (by W. J. Thomas & R. B. Gibbs) 14:283-298...14:157168 ALBITE Davis Hill near Bancroft, Ontario: an occurrence of large nepheline, biotite and albite-antiperthite...ALLEN, GEORGE B. --and W. Hunt: The Tonopah-Belmont mine, Maricopa County, Arizona 19:139-144 ALLGOOD, GENNE |  | | Journal (issue) | | discovered in 1917 the deep blue beryls from the Maxixe mine in Brazil have been a source of fascination both...714 1.725 31 32 33 33 1.736 1.746 1.764 1.764 35 37 38 RI 1.81 1.926 1.83 Sillimanite Kornerupine...months which included trenching and sampling in a region of approximately 200km2, some areas of major interest...absorption minimum in the 600 to 650 nm region, this being the region where previously measured blue Maxixe...examination showed no absorptions in the Maxixe region in any of these aG beryls, and this was confirmed |  | | Journal (issue) | | moving products from mine to consumer. The main cover image was taken at the AnahÌ mine in Bolivia, a major...of the company (Even-Zohar, 2007). Because of the mine closures, De Beers’s market share by volume fell...11 DTCsightholder manufacturing facilities in Namibia. However, these are supplied from all DTC sources...of cutting factories throughout South Africa, Namibia, and Botswana, such as this facility in South Africa...pink diamonds (0.51 and 0.55 ct) from the Argyle mine in Australia were part of the 2007 Argyle pink diamonds |  | | Book (edition) | | Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43...oligoclase, labradorite, bytownite (series end-members albite and anorthite). These transitional members largely...abbreviated, e.g. canton (Switzerland), vilayet (Turkey), region (Chile), kray and oblast (Russia). The country...by Mobutu, and is now the Katanga administrative region again. The former Kivu province is now divided...United States or of the Upper Silesian historical region in Poland, where the importance of ore-bearing |  | | Journal (issue) | | points to the junction o f two veins in the Bage mine as the probable type locality fo r both species...ctober, 1992 377 Figure 1. The Cromford Moor mine near Mat lock, Derbyshire, England (from John M...crystal, 2.5 cm, with fluo rite, from the Wallclose mine, Cromford, Der byshire. It was sold to Charles...Phosgenite crystal, 1.2 x 2.5 x 4 cm, from the W allclose mine, Cromford, Derby shire. Greville collection, now...to 2.5 cm, with galena and barite, from the Bage mine, Bole Hill. Collected by Bryce M. W right, later |
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