 | | Journal (article/letter/editorial) | | Johannesburg, South Africa brucec@uj.ac.za AJOITE Messina Mine, Musina, Limpopo Province, South Africa I t might...originating from the Messina mine in South Africa. (Note that the town where the mine existed was originally... The registered mine name remains Messina.) Since the early 1950s, the Messina mine has produced spectacular...original type-locality specimens from the New Cornelia mine, Pima County, Arizona, in the United States have...exist worldwide, are described here, but the Messina mine specimen illustrated as figure 1 is a fine example |  | | Journal (issue) | | in 1978 by Donald Elliott at the Diamond Willow mine near Thunder Bay, Ontario. Photo by Harold and Erica...Rubellite Tourmaline on Albite from the Itatiaia mine, Minas Gerais, Brazil. The Rubellite crystal measures...began with the opening of the Thun der Bay amethyst mine in 1967, and in 1975 amethyst was declared by the...best known occurrence is the Thunder Bay amethyst mine, at Elbow Lake, which has been in operation since...Diamond Willow mine, operated by Gunnard Noyes and also by the author, the Ontario Gem mine, the Dorion |  | | Book | | times, and there is evidence of at least one flint mine dating from this period. Finely worked and polished...derives its name from the saltmining district of Hallstatt in Upper Austria, where many prehistoric finds have...needles or fibres radiate from a common center (hematite or reniform limonite, Pls. 13, p. 73, and 21 ...occasionally workable veins of cassiterite with hematite (Mexico); many other minerals too form as sublimates... and deposited later. Some of the sedimentary hematite and pyrite deposits are formed in this manner: |  | | Book | | mineral particles (eg inclusions of chlorite and hematite in jasper). Allochromatic minerals display other...unaltered crystals of the same mineral. For instance, hematite (hardness 6) will have a lower hardness in the...named from the colour of their streak, such as hematite - blood, crocoite - saffron and xanthocone - yellow...mineral magnetite; to a lesser extent by pyrrhotite, hematite and wolframite. A large number of minerals are...Caucasus - crystals up to 1.5 cm (USSR), Getchell Mine - Nevada (USA) âąApplication: ore (extraction of |  | | Report (issue) | | elbaite crystals with lepidolite from the Golconda Mine in Minas Gerais, Brazil by Eberhard Equit, 1993...Alexander U. Falster and William B. Simmons âą Dravite from Qarusulik, Ameralik Fjord in Southwestern...This 24 cm wide "schorl" specimen from Tyrol, Austria was part of the Gigot D'Orcy collection and is...circa 1910 view of the old mine portal on the north side of the Himalaya Mine in San Diego County, CA....Tschermak later focused on tourmaline and named dravite, the third of the currently accepted tourmaline |  | | Journal (article/letter/editorial) | | rutile commonly occurs with an assemblage of oxy-dravite, quartz, graphite, zircon, pyrite, biotite, and...high Fe (up to 0.99 wt%; possibly contributed by hematite microor nanoinclusions) and U (up to 180 ppm)...collected from drillholes collared in the underground mine are indicated with an arrow pointing to its general...and D (Fig. 1b). The sandstones contain minor hematite, dickite-kaolinite, illite, and Sr-Ca-SO2â 4 -rich...regional diagenetic minerals (primarily dickite with hematite) are overprinted by illite, chlorite, magnesio-foitite |  | | Journal (issue) | | calcite; crystal aggregates 15 cm in size. VĐ”rklinii Mine, Dabugorsk, PĐżmorskii Krai, Russia. Specimen: V...cassiterite (?), corundum, cristobalite, cuprite (x1), hematite (xl), iozite (wustite), maghemite, melanophlogite...silicates â cordierite; group o f tourmaline: dravite (x1), schorl (?), elbaite (?). Chain silkates â...no end faces. Their composition is closest to dravite (Suprychev and Makarov, 1968). A mysterious case...concentration of concentric-zonal oolites with a hematiteâvernaditeâ rancieiteâcryptomelane composition | | | Book | | illustrated Encyclopedi of the Worldâs Rocks and Mine re L A R E N MI OF THE WORLD Rudolf Duda and...mineral particles (eg inclusions of chlorite and hematite in jasper). Allochromatic minerals display other...unaltered crystals of the same mineral. For instance, hematite (hardness 6) will have a lower hardness in the...named from the colour of their streak, such as hematite â blood, crocoite â saffron and xanthocone â yellow...mineral magnetite; to a lesser extent by pyrrhotite, hematite and wolframite. A large number of minerals are |  | Alexandre, P., Peterson, R. C., Kyser, K., Layton-Matthews, D., Joy, B. (2014) High-Cr Minerals from the Matoush Uranium Deposit in the Otish Basin, Quebec, Canada. The Canadian Mineralogist, 52 (1) 61-75 doi:10.3749/canmin.52.1.61 | Journal (article/letter/editorial) | | addition to uraninite, both silicate (chromium-dravite and chromphyllite) and oxide (eskolaite) high-Cr...minerals are present in major amounts. While high-Cr dravite and high-Cr muscovite have been described previously...and ca. 37 wt.% in chromium-dravite. Complete solid solutions among hematite (Fe2O3), eskolaite, and karelianite...This assemblage includes Cr silicates (chromium-dravite, following the nomenclature of Henry et al. 2011...Cr2âxH3xO3). While typical dravite and muscovite contain no Cr, rare chromium-dravite and chromphyllite have |  | | Journal (article/letter/editorial) | | THE 32nd RMS rd The 33 logical ra er Mine st e h c Ro um Symposi9, 2006 April 6â Artwork by Susan...09:28 01 December 2014 THE FENGJIASHAN WOLLASTONITE MINE, DAYE COUNTY, HUBEI PROVINCE, CHINA. B. Ottens,...described in 2002 as a new mineral from the âDaye mine â near the city of Huangshi. At the time, the precise...the West have visited the Fengjiashan Wollastonite mine in Daye County, and a huge number of well-developed...from this occurrence. The Fengjiashan Wollastonite mine lies in the copper iron belt in the Eastern Yangtze |  | Cabral, Alexandre Raphael, TupinambĂĄ, Miguel, Zeh, Armin, Lehmann, Bernd, Wiedenbeck, Michael, Brauns, Michael, Kwitko-Ribeiro, Rogerio (2017) Platiniferous goldâtourmaline aggregates in the goldâpalladium belt of Minas Gerais, Brazil: implications for regional boron metasomatism. Mineralogy and Petrology, 111 (6) 807-819 doi:10.1007/s00710-017-0496-0 | Journal (article/letter/editorial) | | 495.6 ± 2.2 Ma for monazite in auriferous quartzâhematite (jacutinga) lode (Cabral et al. 2015a); (4) UâPb...auriferous kaoliniteâquartz pockets with abundant hematite and rutile (Cabral et al. 2013a); (5) Pbâ Pb weighted-average...Bom Sucesso is palladiferous and hosts specular hematite and tourmaline (Fig. 2d, e). This type of goldâtourmaline...These features characterise the tourmaline as dravite. Review of data published elsewhere The goldâtourmaline...Palladiferous gold containing inclusions of specular hematite and tourmaline, which appear black. Aggregate |  | | Book | | museum quality but many minerals can be found on mine dumps or can be purchased or traded. After introducing...species as in quartz on calcite and rutile on hematite. Some faces attract overgrowth more than others...colouring of alternate faces of quartz by red hematite. -40- Old overgrowths may themselves be overgrown...as in malachite Reniform: kidney-shaped as in hematite Mammillary: breast-shaped as in spherulitic or...over its beer: to go underground in a non-working mine is sheer folly unless you are accompanied by someone |  | | | | 45 cassiterite 34 disthene 79 dolomite 44, 45 dravite 96 dumortierite 82, 83 elbaite 95 eleolite 111...gadolinite 85 gahnite 24 galaxite 24 heliodor 93, 93 hematite 25, 25, 27 hemimorphite 86, 87 hercynite 24 hessonite...especially near Kimberley); diamonds from the Kimberley mine are embedded in ultrabasic blue rock called kimberlite...carats, equal to 621 grams) was found at the Premier Mine; named the Cullinan diamond, it was presented to...found at Butte, Montana, and the Copper River district of Alaska. A much rarer mineral is covellite, |  | | Journal (issue) | | Metaliferi Mts. 15 4. Baia Mare metallogenic district 64 5. Other sources of native gold from Romania...metal gold pans, as well as a replica of the famous mine carriage which is considered to be the oldest of...unit. For instance, in BradSÄcÄrĂąmb metallogenic district, the Au:Ag ratio is relatively uniform (45% to...metallogenic criterion: province, subprovince, district, sector, field/ node (Fig. 2) . 7 Fig. 1. Example...relevant metallogenic units (node, field, sector, district) were made. For samples sourced abroad, a summary |  | | Journal (issue) | | Italy. (2) Augite, 2.6 cm, from Fassatal, Tirol, Austria. (3) Boracite, 2.9 cm, from LĂŒneburg, Germany....cm, from Gerensegen, Schwarzwald, Germany. (10) Hematite âiron rose,â 3 cm, from St. Gotthard, Switzerland...the Unificada mine, Potosi, Bolivia. Top right: Benitoite, 2 cm, from the Benitoite Gem mine, California...NâChwaning I mine, Kuruman, South Africa. Bottom right: Mimetite, 2.7 cm, from the Tsumeb mine, Namibia....Record: (1) Stephanite, Husky mine, Canada. (2) Wulfenite, Rowley mine, Arizona. (3) Diaspore twin, Pinarcik |  | | Journal (issue) | | ................78 by Pete J. Dunn The snowbird Mine, Montanaâs Parisite Loca lity.......................100 by Pete J. Dunn and Daniel Appleman The Dravite Crystal Bonanza of Yinnietharra, Western A u s.......... 112 by Anthony Robert Kampf The Harding Mine, Taos County, New Mexico..........................to slip the paper, as well as the accompanying dravite paper, into the pegmatite issue anyway. This issue...(colorless) from Knappenwand, Untersulzbachtal, Tyrol, Austria. The crystal is 3.9 cm tall (Smithsonian #123532) |  | | Show/Event (guide) | | pseudomorphs, minerals from the Second Sovietskiy mine, Dal'negorsk, Russia, and manganoan calcite. About...r a p h y of carrollite from the Kamoya South II mine, Democratic Republic of Congo by V. King andR.L...L. Morgan 10:30 T h e Fengjiashan Wollastonite mine, Daye County, Hubei Province, China by B. Opens 10:45...geology for the Parishville-Hopkinton Central School District in the town of Parishville, St. Lawrence County...when Roy Baker showed him specimens from the Foote Mine at a local mineral club meeting in late 1999. Immediately |  | | Journal (article/letter/editorial) | | vector. Compositions deviate from ideal schorlâdravite along a trend that closely approximates the uvite...compositions dĂ©vient de la sĂ©rie idĂ©ale schorlâdravite selon le vecteur dâĂ©change de lâuvite. Les spectres...the Humboldt Range of Nevada (USA) and the Basin district of Montana (USA) (Fuchs & Maury 1995). In the...compositions in such deposits belong to the schorlâdravite series, comprising highly ferruginous âoxytourmalinesâ...(Zweng & Clark 1995). In Cerro Casale (Aldebaran district, Chile), tourmaline-bearing hydrothermal breccias |  | | Book | | 96, 97 dipyre 114 disthene 79 dolomite 44, 45 dravite 96 dumortierite 82, 83 elbaite 95 eleolite l l...hauynite 114,116 hedenbergite 96 heljodor 93, 93 hematite 25, 25, 27 bemimorphite 86, 87 hercynite 24 hessonite...59 zippeite 62 zircon 77, 78, 78 zoisite 88 THE MINE LKINGDOM All physical bodies in Nature can be...or slightly rotated Vitreous. Like glass 3 THE MINE Class I: native ·elements Chemical elernents found...especially near Ki1nberley); diamonds from the Kimberley mine are embedded in ultrabasic blue rock called kimber/ite |  | | Journal (article/letter/editorial) | | crystals of dolomite, magnesite, danburite, pyrite, hematite, and boracite (mostly microscopic, but occasionally...chalcopyrite, clinoenstatite, magnesioriebeckite, dravite, ericaite, povondraite, rutile, and magnesioferrite...of microcline, intermediate schorl-dravite, povondraite, hematite, pyrite, magnesioriebeckite, and other...Cochabamba city jail off to his private asbestos mine in the jungle. Dr. Federico Ahlfeld and other mineralogists...social effects here that complicate the lives of mine owners, prospectors, and mineral collectors to this |  | | Journal (issue) | | et al. was said to have originated in the Wessel mine near Hotazel by Karuman, N. Cape Province, S. Africa...Tourmaline mine (yellow-green, rose-red, yellow and colourless tourmaline), the Otjimbingwe mine (red and...the Kubas mine (fine quality yellowish-green, red and rose-colour), the Albrechtshohe mine (emerald-green)...(emerald-green), the Brandberg Tourmaline mine (dark red, colourless, darkand yellowish-green). M.O'D. BEYER...Lapis, 4 , 1 , 32,2 figs, 1979. Describes the dravite from Western Australia. M.O'D. BROWN (G.). Gemmological |  | | Journal (article/letter/editorial) | | MINES AND MINERALS OF AUSTRIA By P H I L I P M O R R I L L East Derby, N . H., 0 3 0 4 1 ( P A R T III)...Heiligenblut-Thurningite. Dobrova-Tourmaline Xls var Dravite; Maraeodite. Gloggnitz-Arfedsonite; Riebeckite;...in magnesite). ROCKS AND MINERALS Altenberg-Hematite. Wochein-Limonite (Geodes). General-Tourmaline...to enter is difficult to se cure. Mountain and mine can be seen to the S of the village. Siderite X...(blue); Dolomite (ferroan) ; Ankerite; Cinnabar; Hematite; Goeth ite; Vordernberg. Calcite. Kraubat or |  | | Journal (article/letter/editorial) | | occurrence (e.g., the zinc deposits of the Balmat district). The type of occurrence is indicated at the end...âmountain leather"), axinite; C. Millerton, Maltby mine: goethite; F. Millerton, road cut on State Rte....shale); S. Essex County Bloomingdale, Leibs moonstone mine: orthoclase, diopside, graphite, vesuvianite; C...carbonate fluorapatite (âeupychroiteâ), uvite-dravite; F, C. Keene Valley Airport: meionite, hedenbergite...phlogopite, rutile; C. Tahawus, National Lead Company mine (44°03'14"N, 74°03'29"W): magnetite, ilmenite, labradorite |  | | Journal (article/letter/editorial) | | tourmalines belong to the alkali group and to the dravite-schorl solid solution. Type III tourmaline which...prospecting W-Sn-Be mineralization in the Xuebaoding district. Minerals 2020, 10, 438; doi:10.3390/min10050438...compositions hematite for Fe, eskolaite Cr, rhodonite Ca, rutile Ti, corundum Al, for hematite for Fe, eskolaite...for= Si, Al; B = B; V = OH, and W =F,for OH, F, hematite OFollowing [18]. Following the normalization procedure...0.17 Dravite Dravite Dravite Schorl Dravite Dravite Dravite Dravite Dravite Dravite Dravite |  | Bosi, Ferdinando, CĂĄmara, Fernando, Ciriotti, Marco E., HĂ„lenius, Ulf, Reznitskii, Leonid, Stagno, Vincenzo (2017) Crystal-chemical relations and classification problems in tourmalines belonging to the oxy-schorlâoxy-draviteâbosiiteâpovondraite series. European Journal of Mineralogy, 29 (3) 445-455 doi:10.1127/ejm/2017/0029-2616 | Journal (article/letter/editorial) | | in tourmalines belonging to the oxy-schorlâoxy-draviteâbosiiteâpovondraite series FERDINANDO BOSI1,*,...oxy-dravite series (sample from Sludyanka crystalline complex, Baikal, Russia) and the oxy-dravite and...and bosiite series (sample from the Valletta mine, Piedmont, Italy) were structurally and chemically characterized...samples corresponding to the species oxy-schorl, oxy-dravite, bosiite and povondraite, show that the main structural...complete substitution series from oxy-schorl via oxy-dravite and bosiite to povondraite, but no (or a limited) |
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