 | | Journal (article/letter/editorial) | | Springer-Verlag 1993 Printed in Austria Constraints on the Origin and the Genesis of Graphite-Bearing Rocks From...the Variegated Sequence of the Bohemian Massif (Austria) M. Schrauder 1'2, A. Beran 3, S. Hoernes 4, and...Summary Transitions between graphitic gneisses, graphite-bearing calcsilicate rocks and marbles of the...patterns of graphite-bearing rocks resemble those of average pelitic sediments. Graphite 613C_values...suggests a "peak"-temperature of 640-780°C for the graphite-bearing calcsilicates and marbles. Small scale |  | | 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)...(cu bic) ; Bronzite. Knittelrield. Iron Ms. Pyrrhotite; Borickite ("Foucherite"); Opal. Fohnsdorf. Lignite...containing Orpiment and Realgar. Leoben. Iron Ms. Pyrrhotite; Goethite; Halloysite; Variscite; Wad; Borickite;...16 Miles Do not scale. Uooer Austria Altaussee tsch# Lower Austria Yugoslav! VII STYR1A ROCKS AND...% " to 2" termin ated) ( N H W ) Kaiserberg. Graphite M. (current). Lig nite M. Fohnleiten. Coal M |  | | Journal (article/letter/editorial) | | University of Graz, Universitätsplatz 2, 8010 Graz, Austria Present address: Geoscience Center, Georg-August-University...5020 Salzburg, Austria 4 Department of Hard Rock Geology, Geological Survey of Austria, Neulinggasse 38...Vienna, Austria 5 NAWI Graz Geocenter, University of Graz, Heinrichstraße 26, 8010 Graz, Austria e-mail:...unit overlies both, the Drosendorf and Ostrong units. Although the Drosendorf unit was traditionally assigned... which confirms an Avalonian affinity of the Drosendorf unit (SORGER et al., 2020). The youngest detrital |  | Janoušek, V., Vrána, S., Erban, V., Vokurka, K., Drábek, M. (2008) Metabasic rocks in the Varied Group of the Moldanubian Zone, southern Bohemia - their petrology, geochemical character and possible petrogenesis. Journal of GEOsciences, 53 (1) 31-64 | Journal (article/letter/editorial) | | include presence of dolomite in carbonate bodies, graphite schists, rocks with marialitic scapolite, locally...because they show much closer association with graphite schists that could have been responsible for the...1995) and the Mesoproterozoic Dobra gneiss in Lower Austria (Gebauer and Friedl 1994; Friedl et al. 2004)...Gföhl Unit, with its typical occurrence in Lower Austria, contains mainly nebulitic biotite migmatites...in the Czech Republic and adjacent areas of Lower Austria, especially in the socalled Raabs Unit, sandwiched |  | | Journal (article/letter/editorial) | | palaeo-environmental assignments are preserved in high-grade graphite-bearing gneisses (e.g Pacltová 1986; Reitz and...Rhin egra ben LLZ CSGC BLZ SSGC Stephanian to Lower Permian continental sediments and volcanic rocks...tectonometamorphic units have been identified (Drosendorf unit with a Monotonous Series and Varied Series...diverging early metamorphic histories. For the Drosendorf unit of the Bohemian Massif, microfossils found...contact with unmetamorphosed Upper Devonian to Lower Carboniferous volcano-sedimentary sequences, is |  | | Journal (article/letter/editorial) | | association with amphibolites, marbles and accompanying graphite gneisses. Fine-grained garnets contain (mol. %)...Novosedly Šebanov lda 20 km Český Krumlov Austria Mo N ath oli th České Budějovice Fig. 1...abundant layers of marble, calc-silicate gneiss, graphite gneiss, quartzite and amphibolite in addition...co-ordinates is given in Tab. 1. 3.1. Pacova hora quarry near Chýnov The Moldanubian Zone is a heterogeneous...1995) and the Mesoproterozoic Dobra gneiss in Lower Austria (Gebauer and Friedl 1994; Friedl et al. 2004) |  | | Book (edition) | | of pyrite (creme) is much higher than that of graphite (brownish grey), which shows grooves at the contact...main axes of the lattice, while the hexagonal graphite is made up of carbon sheets with very little bonding...nature when observed under XPL; the matrix is pyrrhotite. Left (bottom): Polysynthetic hematite twinning...(continued) Pressure twins are commonly found in graphite or molybdenite, where they are easily identified...grains. Left: Simple (upper right) and complex (lower left) twinning of gudmundite (blue and brown anisotropy) |  | | Report (issue) | | Graphite Chapter J of Critical Mineral Resources of the United States—Economic and Environmental Geology...http://periodic.lanl.gov/images/periodictable.pdf. Cover. Graphite. U.S. quarter for scale. Mineral collection of...Photograph by Andrew Silver (BYU index 1-1023a). Graphite By Gilpin R. Robinson, Jr., Jane M. Hammarstrom...Jr., Hammarstrom, J.M., and Olson, D.W., 2017, Graphite, chap. J of Schulz, K.J., DeYoung, J.H., Jr.,............... J1 Commercial Classifications of Graphite.............................................. |  | | Journal (article/letter/editorial) | | kimberlites (more than 90 %), and is considerably lower in northern Siberia and Ural placers (< 30 %). Key...University of Graz, Universitaetsplatz 2, A-8010 Graz, Austria 2 OREA, Institute for Oriental and European Archaeology...of Sciences, Hollandstrasse 11-13, A-1020Wien, Austria e-mail: christian.ademeit@student.tugraz.at The...of Vienna, Althanstraße 14 (UZA II), 1090 Wien, Austria Institute of Geology of Ore Deposits, Petrography...corresponding to either titano-magnetite or monoclinic pyrrhotite and with TC ~700 ºC corresponding to hematite |  | | Journal (article/letter/editorial) | | Co., where turquoise is found as thin veins in graphite schists (Carboniferous). The Erin occurrence is...Please Send Them In. calcite from the West End quarry, Inyo Co., Calif., and the other is a bluishwhite...Can anyone supply information on the occurrence? District oí Columbia—On a recent visit to Washington, the...grayish cephalopod from the world's largest limestone quarry, located in Rogers City, Presque Island Co., Mich...are often of enormous size, coiled like a ram's horn, and of excellent quality. Missouri—T. A. Patterson |  | | Journal (article/letter/editorial) | | MINPET 2017 INNSBRUCK / AUSTRIA SEPTEMBER, 6th - 9th 29 MITT.ÖSTERR.MINER.GES. 163 (2017) HIGH-TECH...Institute, Innsbruck University, 6020 Innsbruck, Austria. Department of Applied Geological Sciences and...and Geophysics, Montanuni, 8700 Leoben, Austria. 3 GeoZentrum Nordbayern, FAU Erlangen-Nürnberg, Schlossgarten...as tetrahedrite). Fe can be present in small pyrrhotite-pyrite inclusions. Ge, Mn, Ni, Cr, and V seems...all Tösens district ore (except Hochjoch) defines a low-Mn/high-Hg group. Most Nauders district ore (Knappental |  | | Journal (article/letter/editorial) | | magnetite, while the latter component can be due to pyrrhotite or due to strongly oxidized magnetite or due...probably lay at the margin of Baltica during the Lower Paleozoic (Schulmann et al., 2005). The Moldanubian...Gföhl unit often structurally overlying generally lower-grade rocks of the Varied and Monotonous groups...of paragneiss with lenses of quartzite, marble, graphite schist, amphibolite, and bodies of granitic gneiss...Monotonous and Variegated groups yield generally lower temperatures of ca 600–700 °C at 1.4–1.6 GPa (Medaris |  | | Book (edition) | | 01-50 V 76 78 80 82 Mineral Strunz-Group Graphite Sulfur Selenium Tellurium I/B.02-10 I/B.03-10...298 300 302 304 306 308 310 312 314 316 318 Pyrrhotite Smythite Nickeline Breithauptite Freboldite Polarite...matrix (brownish grey), skutterudite (light grey, lower right corner); Core Drilling near Orahovac, Kosovo...(brownish pleochroism), silicates (dark grey); Basalt Quarry Bühl near Kassel, Germany [j]; Nic. // C Iron (dark...(brown and multicolour internal reflections); Basalt Quarry Bühl near Kassel, Germany [j]; Nic. + 20 Iron |  | | Book | | A CHANGING PLANET 11 Vanadinite, San Carlos district, Chihuahua, Mexico * 8 x 4 x 2 cm Mineral Species...see it as being very dark or black (for example, graphite). Alternatively, if very little of the color in...anything at all through an opaque mineral such as graphite. Density is the mass per unit volume of a mineral...both diamond and graphite are made of carbon (C), diamond feels heavier than graphite because its carbon...centimeter of diamond than in the same volume of graphite. So although both minerals are made of the same |  | | | | element. Gold, copper, silver, platinum, bismuth and graphite fall in this subdivision. Sulphides and arsenides:... chalcopyrite, covellite, pyrite, marcasite, pyrrhotite, pentlandite, stibnite, cobaltite, arsenopyrite...description is not clear, e.g., submetallic, for graphite. Adamantine: brilliant, hard, durable, e.g., diamond...tint), p. 82 pyrrhotite (bronze yellow), p. 50 chalcocite (dark grey), p. 34 | graphite (steel grey,...‘Soft(Mohs 1-2) ‘Black Hard (Mohs more than 51) graphite (black),p. 30 pyrolusite (grey to black), p. 82 |  | | Journal (issue) | | JANUARY–FEBRUARY 2019 Articles The Almadén mining district, Ciudad Real, Spain ............................ Maharashtra, India 6 cm The Almade;n Mining District, Ciudad Real, Spain Borja Sainz de Baranda Graf...Alcala de Henares (Spain) The Almadén Mining District exploited the largest mercury deposit in the world...in 2012, the district was declared a World Heritage Site by Unesco. The Almadén District has yielded excellent...donharrisite. INTRODUCTION The Almadén mining district exploited the largest mercury deposit in the world |  | | Journal (article/letter/editorial) | | small furnace in Gadsden. The mineral occurs in Lower Cambrian limestone, referred to as the Conasauga...Michigan, Ann Arbor, Mich.) The Micanite pegmatite district lies across the Park-Fremont County line in south-central...village of Micanite. The pegmatite of the Micanite district contains unusually large 378 ROCKS AND MINERALS...Idaho, is operating a cobalt mine in the Blackbird district of Lemhi Co., Idaho. This mine is reported to...known for many years as occurring in the Blackbird district and it may be the chief cobalt ore mined by the |  | Kříbek, Bohdan, Žák, Karel, Dobeš, Petr, Leichmann, Jaromír, Pudilová, Marta, René, Miloš, Scharm, Bohdan, Scharmová, Marta, Hájek, Antonín, Holeczy, Daniel, Hein, Ulrich F., Lehmann, Bernd (2009) The Rožná uranium deposit (Bohemian Massif, Czech Republic): shear zone-hosted, late Variscan and post-Variscan hydrothermal mineralization. Mineralium Deposita, 44 (1) 99-128 doi:10.1007/s00126-008-0188-0 | Journal (article/letter/editorial) | | Bohemian Massif the most important uranium ore district in Europe. This paper deals with the Rožná deposit...deposit (a part of the Rožná-Olší uranium ore district, total mine production of 23,000 t U) located 45...the Bohemian Massif The Rožná-Olší uranium ore district lies in the northeastern part of the Moldanubian...Licoměřice deposit, 350 t U; 26 Příbram, 51,000 t U; 27 Lower Silesia, 500 t U, Kowary, Kletno, and Radoniów deposits...calc-silicate rocks, quartzite, intercalations of marble, graphite schists, and numerous bodies of amphibolites (Thiele |  | | Book | | MORAVO - SILESIAN (medium to high grade) D Drosendorf unit (low to medium grade) ~ ~ Devonian to...Salzburg Hellbrunnerstr. 34lIII 5020 Salzburg Austria P.A. FLOYD Department of Geology University of...Salzburg Hellbrunnerstr. 34/III 5020 Salzburg Austria H.J. FRANZKE Geologisches Institut Leibnizstr...Graz Austria G. FUCHS Geologische Bundesanstalt Wien Rasumowsky-Gasse 23 - 25 1030Wien Austria P. ...Salzburg Hellbrunnerstrasse 34lIII 5020 Salzburg Austria H. KREUZER Bundesanstalt fUr Geowissenschaften |  | | Journal (article/letter/editorial) | | and timing of their passage through the mantle to lower crustal depths, and the subsequent exhumation to...in addition to the predominant and well-known graphite-bearing assemblages. Lastly is documented a decompressional...Gebauer and Friedl 1994; Friedl et al. 2004) in Lower Austria and the Světlík orthogneiss (2.1 Ga protolith...concept has recently been questioned both in Lower Austria (Racek et al. 2006) and Bohemia (Štípská et...vertical extrusion of thermally softened orogenic lower crust (Lexa et al. 2011). Subsequent mid-crustal |  | | Journal (article/letter/editorial) | | particular, the paper of Professor E. F. Stumpfl (Austria) was devoted to a comparative description of the...chalcopyrite, pyrrhotite, pyrite, sphalerite, and molybdenite) and also an increased amount of graphite in the...actinolite, epidote, graphite, quartz, and sulfides in minor amount. In the lower part of the skarn segregation...numerous layers of graphite-bearing amphibolite bodies). The stratiform horizon of graphite-bearing amphibolites...feldspar, biotite, quartz, pyrite, chalcopyrite, pyrrhotite, bismuthinite, magnetite, wolframite, and other |  | | Journal (article/letter/editorial) | | Institut der Universit/it, A-6020 Innsbruck, Austria Abstract. During Tertiary regional metamorphism...calcareous metasediments, reaction of pyrite to pyrrhotite is suggested by regional distribution and textural... In rocks without graphite pyrite is common at all metamorphic grades. In graphite bearing rocks, however...Fe-sulfide is pyrite at lower grade and pyrrhotite at higher grade. Furthermore, in graphite bearing high grade...pyrite-pyrrhotite relations. Increase of temperature is most effective by increase of pyrrhotite vs. pyrite |  | | Book | | derives its name from the saltmining district of Hallstatt in Upper Austria, where many prehistoric finds have...charges is sometimes disobeyed by Nature. Thus pyrrhotite FeS, for example, nearly always contains a dehcit...below. South Africa. Below right Coarsely foliated graphite. Rap;edara, Cevlon. PLATE 1 C '9 1 Orthorhombic...of these fourfold axes in all. The considerably lower symmetry of a monoclinic crystal is shown in Fig...crystallographic symmetry of a body may often be lower than its apparent geometric symmetry. In a pyrite |  | | Journal (article/letter/editorial) | | Quebec. The sill is well exposed in the Varennes quarry, which has been operated continuously for crushed...hornfels chill-zone is evident at both the upper and lower contact of the sill with the sedimentary rocks....nenadkevichite, nepheline, opal, pectolite, pyrite, pyrrhotite, rhabdophane, rhodochrosite, quartz, serandite... just off Route 109, there is an old pegmatite quarry known locally chiefly for its occasional production...documented, if at all. Most of the material from the quarry was evidently used in the construction of an adjacent |  | | Book | | utilization of known materials (e.g., chemically pure graphite applied as a moderator of fast neutrons in atomic...partial ablation of the surface causes cooling of the lower layers, which thus acquire a more resistant structure...(diorites to quartz diorites) which predominate in the lower layer of the continental crust, produces melts that...industrial minerals of magmatic origin (diamond, graphite, corundum, forsterite, apatite, eruptive rocks)...consolidation. The early magmatic deposits of diamonds and graphite have a common origin from carbon or carbonaceous |
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