 | | Journal (article/letter/editorial) | | photo November/December: Silver, Kongsberg silver mines, Kongsberg, Buskerud, Norway; Joaquín Folch Girona...County, New York State, R. B. Cook, 244–52 Amethyst, South Carolina, 66–68 Amphibolite, New York, 451 Ancyclite-(Ce)...451; Ohio, 153 Apophyllite-(KF), New York, 226 Aragonite, New York, 226, 329; Ohio, 153 Arfvedsonite, Virginia...Lakes, Founder of the Famed Colorado School of Mines Geology Museum, B. Simmons, K. Honda, 426–53 Artinite...New York State in the Collection of the École des Mines, Paris, France, L. Touret, 264–75 Belley, P., see |  | | Journal (issue) | | .......................... 421 by P. J. Dunn Graphite from Crestmore, California .....................Petrussenko Minerals of the Beltana mine, Puttapa, South A ustralia 449 by P. Elliot Columns European...minerals; Mich. attend shows where you can Copper Country Minerals see our stock. You’ll enjoy seeing our...minerals & fossils G eology Museum Colo. School o f Mines Curator: Virginia A. Mast Tel: (303) 273-3823 G...ide minerals & fossils N e w M exico Bureau o f Mines & Mineral Resources Mineral Museum M ineralogist/Curator: |  | | Book | | ; 18) Translated from the Czech. Bibliography: p. Includes index. 1. Mines and mineral resources. 2....literature on the subject and the work done by Czech and Slovak economic geologists since the establishment...fossil fuels) the term "non-ore" is only used in the Czech and older German and Polish literature· The Anglo-Saxon...utilization of known materials (e.g., chemically pure graphite applied as a moderator of fast neutrons in atomic...Al, Ti,Cr,Ta, U, Zr) Even in the economy of a country so rich in ore deposits as the U·S·A·,non-metallic |  | | Journal (article/letter/editorial) | | carbon isotope fractionation between CaCO3 and graphite Peter Deines , David H. Eggler * Department of...2009 Abstract Carbon isotopic exchange between graphite and three polymorphs of CaCO3 was investigated...exchange treatment of Northrop and Clayton (1966). Graphite starting material for the majority of the experiments...with an isotopic contrast between the initial graphite and calcite of close to 50&, equilibrium fractionation...equilibrium interior exchange: 1000 ln acarbonate–graphite ¼ 3:28ð0:07Þ 106 =T 2 : Our calibration lies |  | | Journal (article/letter/editorial) | | Drosendorf unit (LINDNER et al., 2020). The area in the south-western part of the Moldanubian zone, which is characterized...Aluminous paragneiss from the Loosdorf complex (south-eastern Gföhl unit), which constitutes the hangingwall...of event2 at ~340 Ma. The Bavarian unit in the south-western part of the Bohemian Massif is characterized...Rabenstein F-Zn mine in the Sarn Valley. Both abandoned mines used to be important pre-industrial, and to some...Structural Geology, Albertov 6, 128 43 Praha 2, Czech Republic e-mail: rene.asenbaum@gmx.at Up to 100 m sized |  | | Book | | especially to Mrs. H. Zárubová who translated the Czech text, and to Mrs. M. Holubová and J. Maasová for...degree be analogous to the metamorphism of. another region but it is unique and unrepeatable in the combination...(Franciscan Formation in California) and in the west of South America; relicts are preserved in the Alps and probably...1600°C (Bentor and Kastner, 1976) so that the country rocks are recrystallized or partly fused over areas...(after Zoubek 1948) in this book as a metamorphic region, and a set of metamorphic regions which belong |  | | Journal (article/letter/editorial) | | gneisses of the Ukrainian Shield as an indicator of graphite formation conditions A. F. Korzhinskiy & G. P...gneisses of the Ukrainian Shield as an indicator of graphite formation conditions, International Geology Review...f the Ukrainian Shield as an indicator o f graphite formation conditions Downloaded by [University...primary and seconctbry carbonates exist along with graphite. The primary carbonates occur as rock-forming...muscovite, garnet, and diopside, but also with graphite. The secondary carbonates replace the rock-forming |  | | Journal (article/letter/editorial) | | Carbon isotope fractionation between calcite, graphite and C02: an experimental study Norbert Scheele*...Goldschmidtstrasse 1, W-3400 G6ttingen, Federal Republic of Germany Received December23, 1991 / Accepted...of stable carbon isotopes be- tween calcite, graphite and CO2 was experimentally determined at temperatures...experiments of Chacko et al. and Mattey et al. In CO2-graphite experiments equilibrium fractionations were extrapolated...the contribution of surface reaction in graphite. CO2-graphite fractionations at temperatures up to 800 |  | | Journal (article/letter/editorial) | | eomewhat off& by the rapid pumping speed in the region of the ion source. Standard electrometer circuits...EPSTEIN et al. (1953) were composed largely of aragonite, it appears that there is also no significant...temperature between calcite and solution, and aragonite and solution. EPSTEINand LOWENSTAM(1953) present...precipitated limestones are composed of fine-grained aragonite sands and ooliths accumulating in a shallow, clear...Bxyozoan coquinite Upper Oligocene Mt. Gambier, South Australia +1*7 BQ Caloamnite Middle Eocene |  | | Journal (article/letter/editorial) | | use . . . . . . . . . . . . . . . . . . . . . Graphite . . . . . . . . . . . . . . . . . . . . . . ....mineralogy of graphite. . . . . . . . . . . . . . . 50.2. Magmatic deposits of graphite . . . . . . ....Structure-bound graphite deposits . . . . . . . . . . . . . . . . 50.4. Sedimentary graphite deposits . ...50.5. Metamorphic graphite deposits . . . . . . . . . . . . . . . . . . 50.6. Graphite supply and use ...the unmineralized or poorly-mineralized wall and country rocks around. Hand specimens of such “abnormal” | | | Journal (article/letter/editorial) | | use . . . . . . . . . . . . . . . . . . . . . Graphite . . . . . . . . . . . . . . . . . . . . . . ....mineralogy of graphite. . . . . . . . . . . . . . . 50.2. Magmatic deposits of graphite . . . . . . ....Structure-bound graphite deposits . . . . . . . . . . . . . . . . 50.4. Sedimentary graphite deposits . ...50.5. Metamorphic graphite deposits . . . . . . . . . . . . . . . . . . 50.6. Graphite supply and use ...the unmineralized or poorly-mineralized wall and country rocks around. Hand specimens of such “abnormal” |  | Chukhrov, F. V., Zvyagin, B. B., Zhukhlistov, A. P., Organova, N. I., Yermilova, L. P. (1986) STRUCTURAL FEATURES OF NATURAL GRAPHITE. International Geology Review, 28 (7) 790-801 doi:10.1080/00206818609466321 | Journal (article/letter/editorial) | | com/loi/tigr20 STRUCTURAL FEATURES OF NATURAL GRAPHITE F. V. Chukhrov , B. B. Zvyagin , A. P. Zhukhlistov...Yermilova (1986) STRUCTURAL FEATURES OF NATURAL GRAPHITE, International Geology Review, 28:7, 790-801,...2016, At: 06:01 STRUCTURAL FEATURES OF NATURAL GRAPHITE Downloaded by [University of California Santa...Ore Deposits, USSR Academy of Sciences, Moscow. Graphite can be used as a recorder of geologic conditions...of each specimen by more than one technique. Graphite is the end member for a series of states of carbonaceous |  | | Book (volume) | | the country, the third part, by Mr. W. Ball, is devoted to the economic geology of the same region. The...extensive mines, or other excavations, under intelligent super vision. The only metalliferous mines, at present...worked under European superintendence, are the gold mines of Madras, and one or two of copper in Bengal. In...the Vi PREFACE. country there are native iron, copper, lead, and other mines; but they are carried...Mayo Salt Mines, show what might be expected were mining operations carried on in this country on the same |  | | Book | | related materials Feldspar 106 Fluorspar Garnet Graphite 110 Slate Sodium sulfate 122 = 130 Iodine...and graphite. Certain then discuss the major producing districts, or a representative district if there...known to insist that their graphite supply must come not merely from one district but from a single mine...comfort. Users of chromite, who must the USSR, South Africa, Albania, and wish that chromite deposits...are provided in publications of the US Bureau of Mines — the Minerals Yearbook, Mineral Facts and Problems |  | | Journal (article/letter/editorial) | | negative in 5 ~3C and 6180. Five ~3C analyses of graphite in marble range f r o m - - 9 . 6 to - - 1 4 °...pre-metamorphic), and (c) the isotopic composition of the graphite is compatible with, though not necessarily evidence...3760 Ma old sedimentary rocks of the Isua area, South-West Greenland (Allaart, 1976) and in the Archaean...*Present address: University of Zambia, School of Mines, Department of Geology, P.O. Box 2379 Lusaka, Zambia...compositions of the marbles (carbon and oxygen) and graphite (carbon) are presented and discussed in the light |  | | Book | | ................ 117 Gold and Other Metals in Graphite C.B. Dissanayake ...............................Related to Mineralization in Stratabound Deposits, South China D. Liu, J. Fu, and R. Jia ..................Matter in Sandstone Uranium Deposits, Grants Uranium Region, New Mexico, USA C.E. Turner, N.S. Fishman, P.G...Precambrian Uraniferous Ore Deposits: Witwatersrand, South Africa, Elliot Lake, Canada, and the Natural Fission...Pyrobitumen in the Panel Mine, Elliot Lake Uranium District, Ontario, Canada J. Mancuso, J. Frizado, J. Stevenson |  | | Journal (article/letter/editorial) | | isochemical–“iso-isotopic” reactions of calcite + quartz to form graphite + wollastonite. In many deposits, carbon’s structure...structure attains well-ordered, nearly perfect graphite crystallinity. The carbon isotope composition of...mantle carbon as measured in diamonds. KEYWORDS : graphite, hydrothermal ore deposits, carbon isotopes INTRODUCTION...INTRODUCTION Among geochemists and petrologists, graphite has a reputation as a refractory mineral. As heating...matter is converted to well-crystallized graphite. Graphite persists as a stable mineral to the highest |  | Perraki, Maria, Proyer, Alexander, Mposkos, Evripidis, Kaindl, Reinhard, Hoinkes, Georg (2006) Raman micro-spectroscopy on diamond, graphite and other carbon polymorphs from the ultrahigh-pressure metamorphic Kimi Complex of the Rhodope Metamorphic Province, NE Greece. Earth and Planetary Science Letters, 241 (3) 672-685 doi:10.1016/j.epsl.2005.11.014 | Journal (article/letter/editorial) | | com/locate/epsl Raman micro-spectroscopy on diamond, graphite and other carbon polymorphs from the ultrahigh-pressure...Diamond and cuboids of poorly to highly ordered graphite were identified either as single phase inclusions... Lett. 192 (2001) 497–506] in the RMP. Cuboid graphite showing variable degree of disordering most probably...Raman micro-spectroscopy; diamond; disordered graphite 1. Introduction Raman micro-spectroscopy is a...identification of inclusions of C-polymorphs (diamond–graphite) in thin sections of metamorphic rocks, providing |  | Wang, Alian, Dhamelincourt, P., Meyer, H. O. A., Guo, Lihe, Zhang, Andi (1994) A carbon-rich multiphase inclusion in a Chinese diamond and its geochemical implications. Contributions to Mineralogy and Petrology, 117 (1) 15-24 doi:10.1007/bf00307726 | Journal (article/letter/editorial) | | consists of an olivine covered with large plates of graphite. Both phases are enclosed in a thin layer of glass...Microcrystallites of diamond and graphite are embedded in the olivine and graphite plates. The characterization...morphology of the microcrystallites of diamond and graphite in the olivine suggests they formed contemporaneously...pressure and temperature. The genesis of the large graphite plates on the surface of the olivine and beneath...varied. This is the first record of diamond and graphite occurring within a silicate inclusion in diamond |  | | Journal (article/letter/editorial) | | 2016 CHEMISTRY AND MINERALOGY OF EARTH’S MANTLE Graphite-diamond relations in mantle rocks: Evidence from...Avenue 51, 620000, Russia 1 Abstract Relations of graphite and diamond have been studied in a garnet-kya...garnet-kyanite-clinopyroxene+sulfide+coesite/ quartz+diamond+graphite eclogite xenolith from the Udachnaya-East kimberlite...diamond province. Euhedral crystals of diamond and graphite occur in the intra- and intergranular space. The...are 1020 ± 40 °C and 4.7 GPa. Raman imaging of graphite enclosed in diamond shows high ordering and a |  | | Journal (issue) | | weighing over 5 carats each recently submitted for country of origin statements. Photo: E.C. Emms • GEM IDENTIFICATION...cultured and imitation pearls. • ORIGIN OPINIONS Country of origin statements on rubies, sapphires and emeralds...light and characteristic spectra in the midinfrared region analyzed. It is an important method of gem identification...many gemstones are located in the mid infrared region, typically between 1500 and 400cm 1 (i.e. between...transmitted infrared radiation in this critical region is not possible. However with reflected radiation |  | | Journal (article/letter/editorial) | | Journal Pre-proof The formation of graphite-rich eclogite vein in S.W. Tianshan (China) and its implication...Elsevier. Journal Pre-proof The formation of graphite-rich eclogite vein in S.W. Tianshan (China) and...ambiguous and poorly explored. In this study, we found graphite-rich eclogite veins (VE) in the carbonated eclogites...subduction zone. The observed graphite with high crystallinity and graphite-bearing fluid inclusions indicate...Pre-proof enough to provide the carbon source for graphite precipitation in the VE. Combined with petrological |  | | Journal (article/letter/editorial) | | r a 1o gi c a I C h e m i s t r y. Italian Graphites. Bg FAUSTO SESTINI (Guzzetta, 1895, 25, i, 216--219)... and Monte Amiati. T h e e of these are true graphites, containing not more than 0237 per cent. of hygroscopic...calcium and magnesium chlorides at 130°, needles of aragonite and rhombohedrd crystals were obtained, the latter...present. The insoluble residue consisted of a scaly, graphite-like substance, silicate grains (probably quartz...is as follows. Nickel-iron. Fe-Xi pliosphide. Graphite. 98-812 0.565 0.025 FeS. trace Slicates |  | | Book (edition) | | perfect cleavage parallel to the basal plane, as in graphite, brucite. Distortions oc6. Irregularities of Crystals...pseudomorphs by deposition. Again, crystals of aragonite, prismatic calcium carbonate, occur consisting... Carbon Group. BO^. Includes Carbon (Diamond, Graphite) and carbon diox- — (Quartz, Si O^, belongs...it occurs in beds along the central part of the south coast and to some distance inland. It undergoes...iron sulphides have decomposed, and in many coal mines ; near Borax Lake, in Califoinia ; Inferno, Humboldt |  | | Report (issue) | | Natural size. Abnormal pyrite crystals, French Creek mines, Chester County, Pennsylvania. The second and third...enthusiasm was aroused, resulting in a c61e des Mines, of several pilgrimage to the laboratory of Abbe...cabinet. Academy made an excursion to the Perkiomen mines. Their activity is shown by the number of mineralogical...obtained at the lead and zinc mines of Phoenixville, the chrome mines south being of New Texas, Lancaster...County, the Gap nickel mines, the corundum mines at Unionville, Brinton's quarry south of West Chester, and |
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