 | | 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;...(Geodes). General-Tourmaline (yellow and black). VII STYRIA (Steiermark) Alt/Ausee. In N W corner of province...to enter is difficult to se cure. Mountain and mine can be seen to the S of the village. Siderite X...Enstatite (Bronzite). Sommergraben, Kraubat. Magnesite; Talc; Pyrite; Amphibole; Dolomite; 2 291 292 ROCKS |  | Ertl, A., Marschall, H. R., Giester, G., Henry, D. J., Schertl, H.-P., Ntaflos, T., Luvizotto, G. L., Nasdala, L., Tillmanns, E. (2010) Metamorphic ultrahigh-pressure tourmaline: Structure, chemistry, and correlations to P-T conditions. American Mineralogist, 95 (1) 1-10 doi:10.2138/am.2010.3283 | Journal (article/letter/editorial) | | Universität Wien, Althanstrasse 14, 1090 Wien, Austria Department of Earth Sciences, Wills Memorial Building...Universität Wien, Althanstrasse 14, A-1090 Wien, Austria 6 Institut für Geowissenschaften, Universität Heidelberg...behavior related to temperature and pressure. Dravite from Parigi, Dora Maira, Western Alps (peak P-T...10Mg0.90)(BO3)3 Si6.00O18 (OH)3 [(OH)0.72F0.28]. Dravite from Lago di Cignana, Western Alps, Italy (~2.7–2...Manning and Pichavant 1983). The stability of dravite was established in experiments by Werding and Schreyer |  | | Journal (article/letter/editorial) | | Cornwall, TR10 9EZ, U.K. 1 2 abstraCt Carbonate-talc altered ultramafic (and mafic) rocks of the obducted...stockworks. Both the quartz veins and carbonate-talc altered rocks contain discrete grains and clusters...host rock chemistry. Tourmalines from the carbonate-talc altered ultramafic-mafic rocks and the invasive...magnesian tourmalines, particularly in magnesite-talc altered ultramafic rocks, can represent a criterion...TOURMALINE FROM SWAT, PAKISTAN ate schorl-dravite to dravite, whereas tourmaline developed in granitic |  | Baksheev, Ivan A., Trumbull, Robert B., Popov, Mikhail P., Erokhin, Yuri V., Kudryavtseva, Olesya E., Yapaskurt, Vasily O., Khiller, Vera V., Vovna, Galina M., Kiselev, Vladimir I. (2018) Chemical and boron isotopic composition of tourmaline from the Mariinsky emerald deposit, Central Urals, Russia. Mineralium Deposita, 53 (4) 565-583 doi:10.1007/s00126-017-0759-z | Journal (article/letter/editorial) | | examples in the literature include Habachtal, Austria (Grundmann and Morteani 1989); Swat Miner Deposita...studies of tourmaline from the Urals Emerald Mines district have reported major-element compositions, but...and still-active deposit in the Emerald Mines district. We also analyzed one sample from the inactive...Krasnoarmeisky deposit in the southern part of the district. The data set presented here combines majorelement...Regional and deposit geology The Ural emerald mining district (Ural emerald belt) is located between the Eastern |  | | Journal (article/letter/editorial) | | chromium-dravite. In 2012, Bosi et al. (2012) discovered a new mineral, oxy-chromium-dravite with ideal...3(OH)3O, which is closely related to chromium-dravite. By the time of the present research, crystal-structural...2012). This is the type locality for oxychromium-dravite. located in a series of serpentinites, dolomites...wt. % Cr2O3 occurs in quartz veins and carbonate–talc altered rocks in ultramafic host rocks of Mingora...millimetres) green crystals. Tourmalines from the carbonate–talc altered ultramafic-mafic rocks and the invasive |  | Bačík, Peter, Ertl, Andreas, Števko, Martin, Giester, Gerald, Sečkár, Peter (2015) ACICULAR ZONED TOURMALINE (MAGNESIO-FOITITE TO FOITITE) FROM A QUARTZ VEIN NEAR TISOVEC, SLOVAKIA: THE RELATIONSHIP BETWEEN CRYSTAL CHEMISTRY AND ACICULAR HABIT. The Canadian Mineralogist, 53 (2) 221-234 doi:10.3749/canmin.1400085 | Journal (article/letter/editorial) | | Naturhistorisches Museum, Burgring 7, 1010 Wien, Austria Institut für Mineralogie und Kristallographie,...Universität Wien, Althanstrasse 14, 1090 Wien, Austria MARTIN ŠTEVKO Comenius University in Bratislava...Universität Wien, Althanstrasse 14, 1090 Wien, Austria PETER SEČKÁR Comenius University in Bratislava...substitution is dominant in the transition from oxy-dravite to magnesio-foitite, and the Al◻(Fe,Mg)–1Na–1 substitution... members of the supergroup, such as schorl or dravite. It usually forms volumetrically small zones in |  | Bačík, P., Uher, P., Cempírek, J., Vaculovič, T. (2012) Magnesian tourmalines from plagioclase-muscovite-scapolite metaevaporite layers in dolomite marble near Prosetín (Olešnice Unit, Moravicum, Czech Republic) Journal of GEOsciences, 57 (3) 143-153 | Journal (article/letter/editorial) | | in the X-site. Some analyses correspond to “oxy-dravite” and some others almost attain magnesio-foitite...tourmalines: (1) CaMg(NaAl)–1, mainly in Ca-enriched dravite, (2) X□Al(NaMg)–1 in nearly magnesio-foititic compositions...suggests that Sr accumulated in Ca-enriched zones of dravite. The pale blue–grey color of the studied tourmalines...–scapolite rocks. Keywords: tourmaline, dravite, oxy-dravite, crystal chemistry, metaevaporites, Bohemian...Extremely magnesian tourmaline including dravite, “oxy-dravite” and magnesio-foitite is confined to specific |  | | Journal (article/letter/editorial) | | Fluor-schorl “Oxy-schorl”* Dravite Fluor-dravite “Oxy-dravite”* Chromium-dravite Vanadium-dravite Povondraite Elbaite...mineralogist F-dominant alkali-group tourmalines: fluor-dravite, fluor-schorl, “fluor-elbaite” and fluor-buergerite... is found in a pegmatite pocket at the Cruzeiro mine, Brazil. The pegmatite contains Li-rich minerals...fibers developed in a pegmatite of the Cruzeiro mine, Brazil. The dashed line is a reference line with...generally fall in the ranges of fluor-schorl to fluor-dravite. Laurs et al. (1996) included information on tourmaline |  | | Journal (article/letter/editorial) | | 3749/canmin.49.5.1189 Al-RICH CHROMIUM-DRAVITE FROM THE #1 MINE, BALMAT, ST. LAWRENCE COUNTY, NEW YORK...J9J 3N7, Canada Abstract Aluminum-rich chromium-dravite is found in association with bright green tremolite...phlogopite, and fluorapatite in talc – tremolite – cummingtonite schist at the #1 mine at Balmat in the Adirondack...assemblage Al-rich chromium-dravite + tremolite + quartz ± phlogopite ± talc ± fluorapatite probably formed...Upper Marble Formation. Keywords: Al-rich chromium-dravite, mafic-ultramafic protolith, metasomatic alteration |  | | Journal (issue) | | Heierman collection. Illinois- Kentucky Fluorspar District Symposium by the Friends of Mineralogy (Midwest...the closing of the Illinois-Kentucky fluorspar district that I organized at Indiana University Southeast...believed having a similar program in the fluorspar district would be ideal. However, the logistics behind...this year. In previous visits to the fluorspar district, I had made contact with Bill Frazer, the owner...Yen. Quy Chau. northern Vietnam: Chumar-Ruyil district. 1epal; Jegdalek. Afghanistan: and easLem Pamir |  | | 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...tourmaline, cordierite, sillimanite, augite, hornblende, talc, muscovite, blotite, chlorite, serpentine, clay...gneiss, garnet amphibolite etc. Further kinds are: talc schists, frequently with crystals of magnesite (epizone);...striations (cp. Fig. 16, p. 93). Habachtal, Salzburg, Austria. Center left Iron cross twin of pyrite. Below left |  | | Journal (article/letter/editorial) | | (BO3)3Si6O1B(OH)*, at high-temperatures. weresynthesized when talc or mullite is also present,the substitutionsia*...reversedirection resulting in partial solid solution toward talc or mullite, Mg2* exchangesprotons for small amountsof...three-phaseareas(tourmaline solid solution, quartz and talc or mullite), and one two-phasearea(tourmalinesolid...Becausealkali-freetourmaline was thought to be related to dravite. NaMg.Al.(BOr).SirOrr(OH)o, by the substitutionAl3*...experimentsrevealedthe presenceof small amounts of talc in additionto quartzand H'BO3. An investigation |  | | Journal (article/letter/editorial) | | occurrence (e.g., the zinc deposits of the Balmat district). The type of occurrence is indicated at the end...“mountain 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 (“eupychroite”), 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 |  | | Book | | some rocks to produce economic deposits of iron, talc, zinc, and other minerals. The following paragraphs...pyrite, and hematite. Operations have developed to mine all three ores, but only the first is of importance...Benson Mines, the world's largest open pit magnetite mine, near Star Lake. Not all of the ore mined here is...very attractive gemstones. One fault zone in the mine has produced exquisite ly crystallized specimens...now lie abandoned in the rusty fields. The Talc Deposits Talc mines at Fowler, Edwards, Sylvia Lake, and |  | | Report (volume) | | Discussion C25 Comparison with the Balmat-Edwards district C29 Tourmaline genesis in the North Gouverneur...Gouverneur, N.Y., compared with those from Sullivan Mine, British Columbia C19 7. Ternary plot of Na2O-MgO-FeO...tourmaline from North Gouverneur, N.Y., and the Sullivan Mine, British Columbia C20 8. CaO-Al2O3 plot for tourmalines...Gouverneur, N.Y., compared with those from the Sullivan Mine, British Columbia C21 9. Al2O3-FeO/(FeO + MgO) plot...N.Y., compared with those in rocks from Sullivan Mine, British Columbia C23 11. (Na + Ca)-Al plot for |  | | Journal (article/letter/editorial) | | Mn enrichment, hydrothermal alteration, Sullivan mine, Pb-Zn-Ag deposit, British Columbia. Introduction...compositional varieties in nature are Na- and Mg-rich dravite, Naand Fe-rich schorl, Ca- and Mg-rich uvite, and...solid-solution series: (Na-Fe) schorl-(Na-Mg) dravite and (Na-Mg) dravite-(Ca-Mg) uvite (Ethier and Campbell, 1977;...tourmalines from the hanging-wall belong to the dravite-uvite solid solution series (Jiang, 1995). Tourmalines...that tourmaline in the samples is not part of the dravite-uvite solidsolution, but rather belongs to the |  | | Journal (article/letter/editorial) | | family of clay minerals), K-feldspar, anhydrite, and talc. Included in this whitish groundmass are abundant...chalcopyrite, clinoenstatite, magnesioriebeckite, dravite, ericaite, povondraite, rutile, and magnesioferrite...crusts composed of microcline, intermediate schorl-dravite, povondraite, hematite, pyrite, magnesioriebeckite...sandstone, magnesite, and dolomite that contain some talc and danburite and commercial deposits of magnesite...Cochabamba city jail off to his private asbestos mine in the jungle. Dr. Federico Ahlfeld and other mineralogists |  | Cabral, Alexandre Raphael, Wiedenbeck, Michael, Rios, Francisco Javier, Seabra Gomes, Antônio Augusto, Rocha Filho, Orlando Garcia, Jones, Richard David (2012) Talc mineralisation associated with soft hematite ore, Gongo Soco deposit, Minas Gerais, Brazil: petrography, mineral chemistry and boron-isotope composition of tourmaline. Mineralium Deposita, 47 (4) 411-424 doi:10.1007/s00126-011-0374-3 | Journal (article/letter/editorial) | | 47:411–424 DOI 10.1007/s00126-011-0374-3 ARTICLE Talc mineralisation associated with soft hematite ore...Springer-Verlag 2011 Abstract Talc mineralisation occurs as hematite–talc schist between soft hematite...Ferrífero of Minas Gerais, Brazil. The hematite–talc schist and soft hematite have a prominent Editorial...mineral in the hematite–talc schist, belongs to the alkali group and falls in the dravite compositional field...fluids, which resulted in the abundant F-bearing talc and the presence of otherwise immobile Ti in hematite |  | | Journal (article/letter/editorial) | | photos. September/October: Silver crystals, Bachelor mine, Amethyst vein system, Mineral County, Colorado;...413; Nevada, 515 Annabergite, Kilometer 3 Mine, Laurium District, Greece, R. B. Cook, 154–59 Apatite, nomenclature...Chamberlain, S. C., Diagenetic Uvite with Overgrown Dravite, Bigelow, St. Lawrence County, New York, 250–59;...Connoisseur’s Choice, Annabergite, Kilometer 3 Mine, Laurium District, Greece, R. B. Cook, 154–59; Calaverite...Media Reviews Diagenetic Uvite with Overgrown Dravite, Bigelow, St. Lawrence County, New York, M. Lupulescu |  | | Journal (article/letter/editorial) | | Muscovite crystals forming a 10-cm rosette, Jose Pinto mine, Minas Gerais, Brazil. Table 3. Interlayer-deficient...spectacular recent find of muscovite was at the Jose Pinto mine, where more than a ton of beautifully crystallized...pink (manganoan) varieties are found at the Harding mine, Taos County, New Mexico (Jahns and Ewing 1977)...forms huge crystals. At Slyudyanka, Lake Baikal district, Russia, it forms large, dark red-brown (but surprisingly...divergent “books” are found at the Little Three mine near Ramona, California, associated with orange |  | | Journal (article/letter/editorial) | | (up to 0.531 apfu Ni) associated with nickeloan talc (0.511–0.582 apfu Ni) or chromian muscovite is developed...developed in magnesite–quartz veins hosted in ultramafic talc + magnesite ± hematite ± chromian muscovite hydrothermal...colorless to green. Tourmaline cores associated with talc are magnesiofoitite with an elevated Na content...apfu) and a Mg/(Fetot + Mg) value of 0.90, or dravite [Na 0.535–0.765 apfu, Mg/(Fetot + Mg) 0.87–0.88]...coefficients for Ni and Fetot between tourmaline and talc are 0.05 and 21.48, respectively. Tourmaline associated |  | | Journal (article/letter/editorial) | | at the Gouverneur No. 1 Talc mine in lenses of green tremolite from the talc-tremolite schists. Dr. George...show enough chromium to be more than a Cr-rich dravite. I analyzed many of these small, rounded grains...grains and recognized a transition from Cr-rich dravite to chromdravite. The chromdravite occurs as submillimeter...associated with blue fluorapatite in some specimens. Dravite, NaMg3 Al 6 Si 6 O 1 8 (BO 3 ) 3 (OH)3(OH), and...York. Dravite occurs in the Grenville marbles (Gouverneur area, St. Lawrence County), in the talc-tremolite |  | | Journal (article/letter/editorial) | | sheared micaceous unit composed of phlogopite + talc + tremolite. Beryl crystals commonly show a green...Tourmaline crystals vary from schorl–dravite to Fe-rich dravite. In the model of evolution envisaged...pegmatites, vigezzite, fersmite, emerald beryl, schorl–dravite, columbite, tantalite, Vigezzo Valley, Western...verdâtre à grisâtre cisaillée composée de phlogopite + talc + trémolite. Les cristaux de béryl montrent généralement...cristaux de tourmaline varient de schorl–dravite à dravite ferrifère. Dans le modèle évolutif envisagé |  | | 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 • 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 |  | Barbosa, Carlos P., Falster, Alexander U., Simmons, William B., Webber, Karen L., Nizamoff, James, Gaines, Richard V. (2000) Minerals of the Brumado Magnestle Deposits, Serra das Éguas, Bahla, Brazil. Rocks & Minerals, 75 (1) 32-39 doi:10.1080/00357520009602572 | Journal (article/letter/editorial) | | name: Bom Jesus das Meiras) in the Serra das Eguas district, Brazil, is one of the largest magnesite deposits...deposits not only yielded ore-grade magnesite and talc but also a wealth of aesthetic and esoteric rare...octahedra at Pedra Preta, where these minerals occur on talc and magnesite. Copper crystals typically do not...and translucent. Inclusions of greenish-brown dravite, quartz, and translucent magnesite crystals were... also encloses and presemes fine-grained, platy talc crystals. Associated minerals include magnesite |
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