 | | 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. Uliâs 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...cordierite, dioptase, dumortierite, pyrophyllite, the quartz varieties the garnet varieties, milarite, including...rose quartz and smoky quartz are currently the most important semi-precious stones found in Namibia. The...turquoise. An extensive deposit of amethyst occurs in quartz-calcite veins in rocks of the Swakop Group. Druses |  | | 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) | | common minerals of microcline, bladed albite, and smoky quartz are enhanced by a purple or green cube of fluorite...Jacobson (1993); Switzer (1939a, b) 4 Sawtooth Mountains, Boise, Custer and Elsmore counties, ID, USA ...Santa Teresa Mountains, Aravaipa district, Graham County, AZ, USA Santa Teresa Mountains NYF Miarolitic...Miarolitic âMain batholithâ biotite-hornblende granite quartz, microcline, beryl Moore (2009); Ross (1925) ...Rare-Element zircon, allanite, anatase, scepter quartz Roberts et al. (2009); Greenwood (1964); Barker |  | | Journal (article/letter/editorial) | | include sphalerite, galena, siderite, and quartz. Casts of quartz after fluorite are common from here. Recent...KèshĂkètĂŠ Qi County, Inner Mongolia Autonomous Region, China. Limpid complex fluorite crystals displaying...green to colorless (Jones 2006). Pseudomorphs of quartz after fluorite have been found in the Botallack...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 |  | | Journal (article/letter/editorial) | | âlawsâ for quartz are the DauphinĂŠ, Brazil, and Japan laws (not Japanese law, please!). With quartz, twinning...was named) is quoted as stating that an untwinned quartz crystal is one of the greatest rarities of the...Figure 2. Quartz with pseudo Japan-law twinning, 8 cm, from the âMessum Mountains,â Namibia. Smithsonian...Figure 1. Typical appearance of some Japan-law quartz twins (from frondel 1962, p. 95). is the most...explaining the confusion surrounding a specimen of quartz that I observed long ago in the Smithsonianâs vast |  | | Journal (article/letter/editorial) | | Hirukawa, Gifu Prefecture, Japan. Minerals include smoky quartz and Baveno-twinned microcline. Masutomi Museum...6/16/08 3:12:16 PM Figure 2. Microcline and smoky quartz from NYF miarolitic pegmatite, Tanakamiyama...(anatexis) to marginal and exterior White Sea region, USSR; Appalachian Province; Rajahstan, India ...August 2013 Figure 3. Topaz on feldspar with smoky quartz from NYF miarolitic pegmatite, Tanakamiyama...Boggs 1993); Klein Spitzkoppe and the Erongo Mountains, Namibia (Cairncross 2005; Cairncross and Bahmann |  | | Journal (issue) | | come up with some very unusual Japan law twinned quartz crystals that are sceptered and in some cases have...mine to produce some very nice, single, sceptered quartz crystals with amethyst heads up to 23/g inches...(5 mm to 2 cm) as single crystals on matrix with quartz crystals. The color Continued on page 6 W eifswurst...ba e. O ne parti cularl y fine pec imen is a smoky quartz car ved bust of A lexander Pushkin. Russ ia's...brought something else. During my latest trip to Namibia in May I heard of a remarkable find of aquamarine |  | | 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... Figure 7. Elbaite (var. indicolite) with rose quartz (unrepaired), 11.7 cm, from the Santa Rosa mine...JanuaryâFebruary, 2023 29 Figure 29. Emerald beryl with quartz crystals, 4.6 cm, from the Brumado mine, Bahia...volume 54, JanuaryâFebruary, 2023 Figure 30. Smoky quartz (âcathedralâ habit), 44 cm, from Divino das |  | | Journal (issue) | | worldwide. However, most of the interest in this region lies in commercial amazonite collecting; very few...Micro-Ibso adapter and shutter. The rutile on smoky quartz photo was taken with an Ortholux-I microscope...epizonal batholith, of a primarily granitic to quartz monzonitic composition, that is exposed over an...intrusive body composed primarily of coarse-grained quartz, feldspar, and mica, that was emplaced during a...the amazonitic variety of microcline, albite, smoky quartz, goethite, topaz, zinnwaldite (a phyllosilicate |  | | 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...soon brought him into contact with the quartz crystals that were found on the mountain slopes. Although...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 |  | | Journal (issue) | | Thirty-three, Number Four Articles Jeremejevite from Namibia . . . . . . . . . . . . . . . . . . . . . . . ...Libethenite (Zambia), v.10/#1 Hydroxylherderite Quartz & Pyrite (WA), (Brazil), Bookson U.S. Hydroboracite... v.14/#1 Celestite (IN), v.13/#4 Diamond (CO), Quartz Derbyshire (England), (MT), Jeanbandyite. $12 Bancroft... $12 v.10/#3 Taewha mine (Korea) Japan Twins (Quartz), Bancroft (Ont.), Franklin $12 v.12/#1 Iceland...22/#6 Wagholi cavansite (India), Kombat mine (Namibia), Madan mines (Bulg.),Beltana mine $12 v.23/#1 |  | | Journal (article/letter/editorial) | | silky luster, and may occur as colorless, gray, smoky brown, green, yellow, or rose-red crystals. Dark...are those from the pegmatites of the New England region. From Maine, King and Foord (1994, p. 246) note...(right). Exceptional rosettes of muscovite with quartz, 6.8 cm wide, from the Santo NiĂąo mine, Patagonia...across, and are associated with beryl, albite, and quartz. Plumose muscovite has been found at the Smith...minerals include beryl, albite, fluorapatite, and quartz. In nearby New Hampshire, the Chandler quarry, |  | | Journal (issue) | | Magdalensburg (Carinthia, Austria), where a series of quartz crystals were found at a settlement that can be...(Lombardy, northem Italy), a transparent and perfect quartz crystaldoubly terminated and about 2.5 cm in diameter-was...foothills of the Lombardy Alps (Pezzotta, 1999), where quartz occurs in a deposit very similar to that of the...the Sicilian sulfur deposits; so-called "fenster quartz" of Porretta Terme; gypsum and other minerals of...Valley and the Siusi Alp; druses of orthoclase and quartz with associated minerals from the pegmatite geodes |  | | Journal (issue) | | issue features a pegmatite mineral, tourmaline on quartz, in keeping with Tucson's Big and Beautiful pegmatite...important and have been mined for muscovite, feldspar, quartz, lithium minerals, tantalum and niobium minerals...the high mountains of Afghanistan and Pakistan; Minas Gerais in Brazil; Mozambique and Namibia in Africa;...and Plumbago Mountain, Maine; amazonite and smoky quartz from near Lake George and Crystal Peak, and...source of some amazing gem material. --.In fact, the region was one of the world's leading sources of gem tourmaline |  | | Journal (article/letter/editorial) | | coarse-grained core margin, and an irregular, coarse quartz-feldspar core. Most exotic mineralization in the...73:378-99. POCKET PARAGENESIS OFTHE ERONGO PEGMATITES, NAMIBIA. R. M. Gentryâ, M. A. W i d , and R....Place, Alexandria, VA 22304. The Erongo Mountains, located in western Namibia, is an area of recent mining...mineralogically simple pegmatites hosted by the Erongo Granite. A suite of minerals acquired from the...evolution. Quartz and microcline generally formed early; however, late-stage crystallization of quartz crystals |  | | Journal (article/letter/editorial) | | displays a great deal of competence at her craft. Namibia, her native country, produces a wealth of colorful...1. Amethyst scepter on hematoid quartz âstak,ââ Orange River, Namibia; colored pencil; 5â X 8â. Naegeleâs...schorl, Erongo Mountains, Namibia; colored pencil; 5"X 8". Figure 2. Windowed smoky quartz, Goboboseb...Goboboseb Mountains, Namibia; colored pencil; 8" X 11". Figure 5. Dioptase on plancheite, Omaue mine, Namibia;...pencil; 8" X 11". Figure 3. Hematoid quartz, Orange River, Namibia; colored pencil; 5" X 8". Volume 79 |  | | Journal (issue) | | Lab Notes ⢠Bromellite ⢠Charoite inclusions in a quartz-feldspar rock ⢠Altered vs. natural inclusions...Hemimorphite from Congo ⢠Jeremejevite from the Erongo Mountains, Namibia ⢠New morganite mine in Madagascar ⢠Namibian...encountered in Namibia ⢠Plastic and steel pearl imitations ⢠Gem cutting factories in Namibia ⢠Conference...states were transported by glaciers from a specific region in Canada (the James Bay Lowland; figure 3). Isolated...(Kennady Lake); (14) Dry Bones Bay; (15) Birch Mountains; (16) Buffalo Hills; (17) Mountain Lake ultrabasic |  | | Journal (issue) | | JanuaryâFebruary, 2020 7 Mark Candee Rose quartz with smoky quartz on feldspar, 10.1 cm, from the Berilo...mine, Ruoqiang County, Bayinguoling Autonomous Region, Xinjiang, China. Ken Donn photo. Azurite ârose...Ken Donn photo. Gold, 3.4 cm, from the Colorado Quartz mine, Colorado district, Mother Lode Belt, Mariposa...Scovil photo. Prehnite, 13 cm, from Sandare, Kayes Region, Mali. Jeff Scovil photo. 10 Supplement to The...Jeff Scovil photo. Quartz on chrysocolla, 13 cm, from Inca de Oro, Atacama region, Chile. Jeff Scovil |  | | Journal (issue) | | photo. (lower left) Amazonite microcline with smoky quartz, 8.5 cm, Tree Root pocket, Two Point claim,...2009 7 RICHARDSON BEARD COLLECTION Pyrite on quartz, 11 cm, Spruce Ridge, King County, Washington....Bruce Oreck collection. Joe Budd photo. Pyrite on quartz and siderite, 8 cm, Simplon Tunnel, near Brig,...12 cm, Daoping mine, Guangxi Zhuang Autonomous Region, China. Joe Budd photo. 10 Supplement to The...Maharashtra, lndia. Joe Budd photo. Arsenopyrite with quartz, 10 cm, Yaogangxian mine, Chenzhou, Hunan Province |  | | Book | | (clockwise from top left): Quartz Citrine crystal; Fluorite; Vanadanite; Quartz crystal (see text for details)...Republic, 6 cm). Figure 1.2 Halite crystals (Namibia, 5.8 cm). 6 section devoted to the display of...in groups 8â12, 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...together only by the attraction of Figure 4.1 The quartz crystals (right) are bounded by flat surfaces, |  | | Journal (article/letter/editorial) | | Science University of Arizona, Tucson INTERESTING QUARTZ I published a column in the September/ October...which I described odd quartzes from the Erongo Mountains, Namibia. Although these appear to be the product...example of epitaxy in which the orientation of the quartz crystals has been dictated by their having grown...designate wulfenite as the state mineral. Two odd quartz specimens from Mount Malosa, Zonba district, Malawi...01:31 12 December 2015 ARIZONA STATE METAL Quartz (smoky quartz), 5 cm tall. Sceptre claims, Emerald Lake |  | | Journal (article/letter/editorial) | | important gem deposits in Africa (Congo, Mozambique, Namibia, Nigeria, Tanzania, Zambia) and Asia (Afghanistan...Pakistan) (TABLE 2). Crystals âfrozenâ in massive quartz or feldspar in the core or core margin of a pegmatite...variety) and tourmaline commonly occur in massive quartz or feldspar of the centrally located pegmatite...pegmatite core zone or in the core margin, the region around the core. Typically, only parts of these crystals...âUrals-typeâ deposits, such as those in the Ural Mountains of Russia, the Kafubu area of Zambia, and the |  | | Journal (issue) | | Jebel Ouichane, Sagangane, Nador Province, Oriental Region, Morocco. Doug Fiske collection; Jordan Root photo...Spann collection; Tom Spann photo. Fluorite with quartz, 11 cm, from Fujian Province, China. Keith & Diane...cleavelandite, 4.3 cm, from Stak Nala, Haramosh Mountains, Skardu district, Gilgit-Baltistan, Pakistan....Kevorkian collection; Jordan Root photo. Fluorite on quartz, 13 cm, from the Yaogangxian mine, Chenzhou Prefecture...what I found was chert with occasional well-formed quartz crystals. I had an insatiable curiosity to know |  | | Journal (article/letter/editorial) | | 89, May/June 2014ââ 239 Figure 6. Fluorite and quartz, 11.1 cm high, Yaogangxian mine, Yizhang, Hunan...specimen. I just like the way the fluorite sits on the quartz crystals. Downloaded by [UmeĂĽ University Library]...Library] at 15:45 07 April 2015 Figure 7. Elbaite and quartz, 12.3 cm, Paprook, Kunar, Afghanistan. Wayne Sorensen...Fluorite and orthoclase, 6.5 cm high, Erongo Mountains, Namibia. Richard Geiger specimen. I found the...240ââ ROCKS & MINERALS Figure 11. Elbaite and quartz, 12.7 cm wide, Himalaya mine, San Diego County |
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Erongo Mountains, Karibib Constituency, Erongo Region, Namibia