 | | Journal (article/letter/editorial) | | Co., where turquoise is found as thin veins in graphite schists (Carboniferous). The Erin occurrence is...beautiful specimens are found of snowy-white drusy quartz which line cavities of gray chert. California—R...of black, crystallized ferberite from the Conger Mine, near Nederland, Boulder Co., Colo. It is good to...consisting of about 22 minerals of which garnet and quartz seem to be the most common. Along with the sand...(microcline, orthoc'ase, albite, oligoclase, anorthite), quartz, mica (biotite, muscovite) obsidian and gold?? |  | | Report (issue) | | of the Cartersville district has been worked out by the senior writer. The district is in the southeastern...dolomite belong in the middle or lower Cambrian, and it is probable that the lower portion of the Knox should...the yellow ocher deposits in the Cartersville district is a direct replacement of the silica in the Weisner...constituents. With reference to the barite occurring at the mine of the Peruvian Ocher Company, at the wooden bridge...cavities are generally lined with a crust of small quartz crystals, while the larger ones frequently contain |  | | Book | | second piece: the flakes are mica, the glassy grains quartz, and the yellowish grains feldspar. The whole specimen...hich feldspar, quartz, and mica are the main constituents. Quartzite consists of quartz only, mica schist...schist of quartz and mica, and eclogite of garnet and augite. There are also rocks which consist of fragments...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 |  | | 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) | | rocks of the central and western Tauern Window (Austria/Italy) B. LUCKSCHEITER & G. MORTEAN'I IXII-IOS...Mierothert~ometrical mid chemic.at studies of fluid inclusionsin mine,'~ls from Alpine veins from the peoniuie rocks o~...ISSN 002#4937. The fluid inclusions in samples of quartz, apatite, epidote, diopside, beryl and phenakRe...typical. In the calcareous mica schists of the lower Schiefe.rhiiIle, in the eastern part of the investigated...COz bea~'ng inclusions observed here were in the graphite-rich rocks of the so~called Habnchzungen and in |  | | Journal (article/letter/editorial) | | combining the commodity (lines) shown by numbers plus lower caps with the host rocks or structure (columns)...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 | | | Journal (article/letter/editorial) | | combining the commodity (lines) shown by numbers plus lower caps with the host rocks or structure (columns)...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 |  | Guarnieri, Pierpaolo, Thiele, Sam, Baker, Nigel, Sørensen, Erik, Kirsch, Moritz, Lorenz, Sandra, Rosa, Diogo, Unger, Gabriel, Zimmermann, Robert (2022) Unravelling the Deformation of Paleoproterozoic Marbles and Zn-Pb Ore Bodies by Combining 3D-Photogeology and Hyperspectral Data (Black Angel Mine, Central West Greenland) Minerals, 12 (7) 800 doi:10.3390/min12070800 | Journal (article/letter/editorial) | | 3D-Photogeology and Hyperspectral Data (Black Angel Mine, Central West Greenland) Pierpaolo Guarnieri 1,...3D-Photogeology and Hyperspectral Data (Black Angel Mine, Central West Greenland). Minerals 2022, 12, 800...dolomitic and scapolite-rich marbles and calcitic, graphite-rich marbles. These results strengthen our understanding...between dolomitic scapolite-rich and calcitic graphite-rich marbles probably represents a direct stratigraphic...lithostratigraphy of the formation is subdivided into a lower dolomite-dominated member and an upper calcitic-dominated |  | Ertl, Andreas, Rakovan, John, Hughes, John M., Bernhardt, Heinz-Jürgen, Rossman, George R. (2019) Vanadium-rich Muscovite from Austria: Crystal Structure, Chemical Analysis, and Spectroscopic Investigations. The Canadian Mineralogist, 57 (3) 383-389 doi:10.3749/canmin.1900020 | Journal (article/letter/editorial) | | 3749/canmin.1900020 VANADIUM-RICH MUSCOVITE FROM AUSTRIA: CRYSTAL STRUCTURE, CHEMICAL ANALYSIS, AND SPECTROSCOPIC...Universität Wien, Althanstraße 14, A-1090 Vienna, Austria JOHN RAKOVAN Department of Geology and Environmental...small quartz veins in graphite schist from Weinberg mountain, near the village of Amstall, Lower Austria...muscovite-2M1, crystal structure, graphite schist, Amstall, Austria. INTRODUCTION Vanadium-bearing muscovite-2M1...(1966) from a quartz-graphite § schist (Mariposa County, California, USA). In the Janggun mine area, Republic |  | | Book | | 200 known here-holds the productive Mwadui diamond mine, known for Yeryfine, rare, pink diamonds. Emerald...Garnets of East Africa 73 Rh.odolite of the Lindi District, Tanzania 76 Tsavorite Garnets 76 The Pyrope-...Tanzania 96 Red Dravite Tourmaline from the Narok District, Kenya 99 Uvite-Dravite Chrome Tourmaline 99 ...Williamson Mine and operations. 21 Figure 2.5. A 2. 9-carat pink diamond from the Williamson Mine. 25 Figure...crystal. 77 Figure 3.12. Umba, Tanzania, corundum mine. 42 Figure 6.3. Campbell Bridges. 78 Figure 3 |  | | Journal (issue) | | JANUARY–FEBRUARY 2019 Articles The Almadén mining district, Ciudad Real, Spain ............................Sickinger MARCUS BUDIL Monaco budil@monaco.mc Quartz var. Gwindl, Galenstock, Uri, Switzerland, 9 cm... 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 |  | | | | surrounded ce ne white calcite, from!iheBluebell Mine; Riondel, Digitized by the Internet Archive...widespread misuse of mineral names such as diamond, quartz, and ruby for substances synthesized in a laboratory...clearly described as synthetic diamond, synthetic quartz, or synthetic ruby so there is no misunderstanding...(hardness 51%), glass (hardness 6), and a piece of quartz (hardness 7). Hand lens: A 10-power (10x) lens...element. Gold, copper, silver, platinum, bismuth and graphite fall in this subdivision. Sulphides and arsenides: |  | | Book (edition) | | example for such a situations can be seen in euhedral quartz crystals embedded in the sulfide matrix of fossil...normally contain amorphous silica/opal rather than quartz in its initial stages, as is the case in modern...displaying various colours under XPL; euhedral quartz shows milky internal reflections. Internal Reflections...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 |  | | Journal (article/letter/editorial) | | INDEX Names of authors are in capitals, subjects in lower case roman, and localities in italics; book reviews...429 Arsenopalladinite, from the Cau~ iron mine, Itabira District, Minas Gerais, Brazil, 455 ARSLAN,M., 750...kintoreite, a new mineral from Broken Hill, 143 AUSTRIA, deposition and transport of gold in the Veitsch... palladium minerals from the Cau8 iron mine, Itabira District, Minas Gerais, 455 BRIGATrl, M.F., 149...mineral from USA, 305 Chondrite, mineralogy of a graphite-containing fragment in the Krymka chondrite, 443 |  | | Book | | 120) Page 6: Mimetite (see page 139) Page 248: Quartz (amethyst variety), Erongo Mountains, Namibia *...Earth’s crust are composed ofjust a few minerals; quartz and the feldspar group are the most abundant processes...A CHANGING PLANET 11 Vanadinite, San Carlos district, Chihuahua, Mexico * 8 x 4 x 2 cm Mineral Species...growth, as exemplified by tourmaline in schist, quartz or phlogopite. Space for Growth Cavities in rocks...about the same time, as happens with pyrite and quartz, or they may have grown one after the other, as |  | | Journal (article/letter/editorial) | | small furnace in Gadsden. The mineral occurs in Lower Cambrian limestone, referred to as the Conasauga...fluoresces blue (through the quartz) under the Mineralight; in addition the quartz crystal has a colorless...crystal'ized cinnabar which comes from the Culver-Baer mine, Sonoma Co., Calif. Colorado—An interesting article...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 |  | | 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...variety of assemblages between native gold and quartz, calcite, baryte, fluorite, clay minerals, native...unit. For instance, in BradSăcărâmb 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 |  | | Journal (article/letter/editorial) | | mineralization in the Schwaz Dolomite, Tyrol (Eastern Alps, Austria ) Hartwig E. Frimmel Department of Geology, University...mineralization in the Schwaz Dolomite, Tyrol (Eastern Alps, Austria). Chem. Geol., 90: 195-209. The significance of...mineralization in Lower Devonian platform carbonates of the Western Greywacke Zone (Tyrol, Austria). Available...for the mineralized Schwaz Dolomite in Tyrol (Austria) will be used to examine the significance of Sr...systems. In the Western Greywacke Zone (Tyrol, Austria) several examples of barite and tetrahedrite mineralizations |  | | Journal (issue) | | of the Kombat mine, Namibia ................................ 421 by P. J. Dunn Graphite from Crestmore....439 by S. Petrussenko Minerals of the Beltana mine, Puttapa, South A ustralia 449 by P. Elliot Columns...ichigan 49930 (906) 482-9560 Michigan native copper; mine owner; wholesale, retail 411 Museum o f Geological...striking a deal with the quarry owner for the rights to mine specimens. Sparse sprays of cavansite encountered...for granting Bhale and his colleagues the right to mine and remove cavansite, the bonanza in the main quarry |  | | Journal (article/letter/editorial) | | particular, the paper of Professor E. F. Stumpfl (Austria) was devoted to a comparative description of the...and so-called granite gneiss domes, which deter mine many of the characteristic features of the geologic...has sometimes been redeposited, oc curring in quartz veins and veinlets. In this region, several scheelite-bearing...and molybdenite) and also an increased amount of graphite in the ore segregations are characteristic. Scheel...actinolite, epidote, graphite, quartz, and sulfides in minor amount. In the lower part of the skarn segregation |  | | Journal (article/letter/editorial) | | EMERALD- AND SPODUMENE-BEARING QUARTZ VEINS OF THE RIST EMERALD MINE, HIDDENITE, NORTH CAROLINA MICHAEL...compositions of the emerald occurrence at the Rist mine, Hiddenite, North Carolina, in order to provide...Beryl and chromian spodumene occur entirely within quartz veins and in open cavities that occupy brittle...in the four assemblages are calcite, amethystine quartz, spodumene and emerald. The early stage of vein...characterized by the crystallization of massive quartz and followed largely by the precipitation of Ca–Fe–Mg |  | | Journal (article/letter/editorial) | | The spodumene deposit at "Weinebene", Koralpe, Austria R. Giid Institut fiir Petrologie, Universit/it...Universit/it Wien, Dr. Karl Luegerring 1, A-1010 Wien, Austria Abstract. The Weinebene spodumene deposit is located...amphibole, plagioclase, plus/minus garnet, and minor quartz. Locally they contain abundant calcite as a primary...predominantly quartzitic and mainly composed of muscovite, quartz, garnet, and biotite, bear kyanite paramorphs after...as well as the micaschists occasionally contain graphite-rich layers, ranging from several cm to a few |  | | 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 (edition) | | 01-50 V 76 78 80 82 Mineral Strunz-Group Graphite Sulfur Selenium Tellurium I/B.02-10 I/B.03-10...Metal : Oxygen = 1:2 (MO2 and related compounds) Quartz IV/D.01-10 Silica, amorphous IV/D.01-80 Rutile...Reflections: Reflectance [%]: Anisotropy: Pleochroism: quartz veins, alluvial deposits gold-yellow, silver-white...Anhedral electrum (yellowish white), quartz (dark grey); New Bullfrog mine, Nye Co., Nevada, USA [h]; Nic....white), argentite (greenish grey), quartz (dark grey); New Bullfrog mine, Nye Co., Nevada, USA [h]; Nic. |  | | 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:...metamorphism reaching granulite facies metamorphism at lower crustal depth of ∼35 km subsequently followed by...Mineralogy and Petrography, Innrain 52, 6020 Innsbruck, Austria e-mail: max.albertus@student.uibk.ac.at 1 The |
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