 | | 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) | | 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...(green, in granite), limonite (dark brown pebble), marcasite (tiny flat crystals in rock), microline (reddish...grayish cephalopod from the world's largest limestone quarry, located in Rogers City, Presque Island Co., Mich |  | | | | element. Gold, copper, silver, platinum, bismuth and graphite fall in this subdivision. Sulphides and arsenides:...Chalcocite, bornite, chalcopyrite, covellite, pyrite, marcasite, pyrrhotite, pentlandite, stibnite, cobaltite...description is not clear, e.g., submetallic, for graphite. Adamantine: brilliant, hard, durable, e.g., diamond...yellow), p. 50 chalcocite (dark grey), p. 34 | graphite (steel grey, black), p. 30 | stibnite (lead grey)...(silver-grey), p. 54 cobaltite (silver-grey), p. 64 marcasite (pale brass yellow), p. 48 " bluish tint), p |  | | Book (edition) | | Left: Creme to light turquoise colour shades in a marcasite aggregate due to its pleochroism. 3 Anisotropy...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...(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) |  | | 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)...(very fine); Plombocalcite X l s ; Limonite; Marcasite Xls; Ilsemannite (Xline blue-black turning blue)...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...Rattan-Lazurite. 294 Fischbach-Lazulite. St. Lorenzen. Graphite. Nr. Yugoslavia. Vorau b Graz-Lazulite X l s |  | | 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) | | color) have been found in the Silver Mountain district, Alpine Co., Calif. COLORADO-"Prof. Richard M...octahedra in quartz from the Mica Lode, Royal Gorge District, (Fremont Co. ), Colorado. The garnet ranges in...number of specimens from that famous Zinc-Lead District, which includes N. W. Arkansas, S. W. Missouri...through, formed on the lead. "Next, small xls, of marcasite (tabular212 spear point), and iron pyrite (tiny...question arises that in as much as iron pyrite and marcasite are the same chemically, how does it happen that |  | Gu, X.X, Liu, J.M, Schulz, O, Vavtar, F, Zheng, M.H (2003) Syngenetic origin for the sediment-hosted disseminated gold deposits in NW Sichuan, China: ore fabric evidence. Ore Geology Reviews, 22 (1) 91-116 doi:10.1016/s0169-1368(02)00110-5 | Journal (article/letter/editorial) | | Petrography, University of Innsbruck, A-6020 Innsbruck, Austria d Chengdu University of Technology, Chengdu 610059...and detrital quartz, quartzite, sericite, and graphite of allogenic origin. They were folded and deformed...a few to more than 10 km, while the Lower Carboniferous to Lower Permian strata consist mainly of limestone...widespread in the study area and can be divided into the Lower, Middle –Upper, and Upper Triassic. The Middle –...Formation (Lower and Upper Members), the Zhuwo Formation, and the Xinduqiao Formation (Lower and Upper |  | | Book (edition) | | 01-50 V 76 78 80 82 Mineral Strunz-Group Graphite Sulfur Selenium Tellurium I/B.02-10 I/B.03-10...Gersdorffite Ullmannite Hollingworthite Irarsite Marcasite Ferroselite Hastite Frohbergite Mattagamite Froodite...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 | | Gold, copper, si lver, platinum, bis1nutb and graphite fall in this subdivision. Sulph ides and ai·senides:...Chalcocite, bomite, chalcopyiite, covellite, py1ite, marcasite, pytThotite, pentlandite, stibnite, cobaltite...pyrolusite (steel grey with bluish tint), p. 82 graphite (steel grey, black), p. 30 stibnite (lead grey)...(dark grey), p. 34 cobaltite(silver-grey), p. 64 marcasite (pale brass yellow), p. 48 bismuth (reddish silver-white)...Red-brown cinnabar (red), p. 96 12 . . .. . graphite (black), p. 30 pyrolusite (grey to black), p. |  | | Book | | the only tool needed. These are pencils with the graphite points replaced by sharp-edged pieces of the standard...the fixed index (the ordinary ray) at a higher or lower reading than the moveable (extraordinary) ray. Where...incident beam are retarded by passing through to the lower side of the film, rejoining the main beam either...mineral deposits are owned by someone - there is no land without an owner - and farmland can often be seriously...rubbish which may harm animals. If the site is a quarry careful arrangements with respect to equipment |  | | Catalog/List | | Jersey USA 2x2 £14 4. GRAPHITE pure grey slightly crystalline mass, Ratnapura district SriLanka small 2x3...fibrous crystals in large 2x3 quartz Maishofen, Austria £17 15. KOCHSANDORITE three small white areas...and with a band ofBarite (not fluorescent) Crich Quarry Derbyshire £10 3x3 inch 42. FLUORITE cleavages...coverage and interesting location Hingston Down Quarry Cornwall 3x2.5 £8 43 . LEPIDOLITE good small display...short wave, UV large lx2 inch Bleiberg Carinthia, Austria £7 46. CALCITE creamy massive, with very good orange |  | | Book | | derives its name from the saltmining district of Hallstatt in Upper Austria, where many prehistoric finds have...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...symmetr:y ar:e no longer: present (Fig. 16a, p. 93). A lower: cr:ystallogr:aphic symmetr:y is often only shown |  | | Catalog/List | | chlorophosphate New Ham.12shire Graf ton Center, Ruggles quarry ...... Olive green masses in pegmatite ...... ARAGONITE...$1. 50. New Mexico Socorro County, Hansonberg district Large white crystal sections, select ....... ...................... . Southern Rhodesia Miami district Yellow-green hexagonal crystal prisms from l"...to l½" thick ........................ • EMERALD Austria or Russia Bright green single hexagonal crystal...aluminosilicate New Jersey Phillipsburg, Royal Green quarry Olive green coarse micaceous plates with serpentine |  | | Book | | Fitch State Geologist and Chief, Geological and Land Management Division Michigan Department of Environmental...geographically: the Northern (Upper) and the Southern (Lower) Peninsulas, which, to a considerable degree, are...MISSISSIPPIAN □ DEVONIAN SILURIAN ORDOVICIAN □ CAMBRIAN ■ LOWER PROTEROZIC 0 MIDDLE PROTEAOZIC ARCHEAN Figur...epartmentofEnvironmentalQuality, Geological and Land ManagementDivision. MINERALOGY OF MICHIGAN 11...Department of Environmental Quality, Geological and Land Management Division. circular bands that dip at |  | | Journal (issue) | | Metaliferi Mts. 15 4. Baia Mare metallogenic district 64 5. Other sources of native gold from Romania...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...relevant metallogenic units (node, field, sector, district) were made. For samples sourced abroad, a summary...attached to the native gold samples from RoşiaBucium district; general and mineralogical characterization 9 |  | | Catalog/List | | clarity & packed with needle like inclusions of marcasite Attractive near complete xtl.Matrix free Good...no matrix. Good RF Ml £2 59. BARITE,Coldstones Quarry,Patley Bridge,Yorkshire.Attractive xtl groups of...with ADULAR,Schwarzkopf,Anlauftal.Pongau,Salzburg,Austria. PU mass of greenish black earthy clinochlore coated...LOLLINGITE.Grube Lolling.Huttenberg in Karnten,Austria Rich veins of radiating silvery grey needle like...Ml.£4 114 MAGNETITE,Rompersdorf Land.Burgenland,Austria Well formed submetallic black magnetite octahedra |  | | Book | | barytes, aragonite, cerussite, arsenopyrite, marcasite, antimonite, hemimorphite, olivine, and topaz...haematite, cinna- bar, proustite, pyrargyrite, graphite, and native elements such as arsenic and bismuth...lattices of two modifications of native carbon: (a) graphite, (b) diamond crystal systems, and thus display...both are calcium carbonates. Pyrite is cubic, marcasite orthorhombic, but both are bisulphides of iron...modifications of pure carbon: diamond (cubic) and graphite (hexagonal). A peculiar class of false crystal |  | | Book (volume) | | these coal seams the collector may often find Marcasite and Pyrite. The measures are 1,200 to 1,400 feet...BROOKLYN (SE of Gardner), area coal mine dumps⎯Marcasite, Pyrite. HANCOCK COUNTY DALLAS CITY: on the Dallas...crystals); (b) Hamilton Quarry, the lower Warsaw section at the top of the quarry (see map) ⎯geodes (lined...(lined with Marcasite & Pyrite with rhombs of Calcite, Sphalerite); e extensive exposure S of town on Crystal...Chalcopyrite, pink Dolomite, Goethite, Jarosite, Marcasite, Malachite, Pyrite, Pyrolusite, Quartz, Selenite |  | | Book (volume) | | these coal seams the collector may often find Marcasite and Pyrite. The measures are 1,200 to 1,400 feet...BROOKLYN (SE of Gardner), area coal mine dumps⎯Marcasite, Pyrite. HANCOCK COUNTY DALLAS CITY: on the Dallas...crystals); (b) Hamilton Quarry, the lower Warsaw section at the top of the quarry (see map) ⎯geodes (lined...(lined with Marcasite & Pyrite with rhombs of Calcite, Sphalerite); e extensive exposure S of town on Crystal...Chalcopyrite, pink Dolomite, Goethite, Jarosite, Marcasite, Malachite, Pyrite, Pyrolusite, Quartz, Selenite |  | | Journal (article/letter/editorial) | | OF AUSTRIA By P H I L I P M O R R I L L East Derry, N . H . 0 3 0 4 1 IV S A L Z B U R G (Land Salzburg)...and then runs into the main highway. resembling graphite; Scheelite X l s (clear) (up to 3 " ) ; Q X l...Sphalerite; Pyrrhotite; Galena; Arsenopyrite; Marcasite; Calcite Xls; Clinochlore; Disthene; Hematite;...Passau Czechoslovakia Lower l_ 16 M i l e s 222 AustCla I V. UPPER AUSTRIA ROCKS A N D MINERALS ...Hematite Xls. Berchtesgaden (Germany). W of. (Austria)—Magnesite operation. Hocharm, Hohe Tauern — Calcite |  | | Journal (issue) | | 307 by ]. P. Cassedanne Mineralogy of the Kalkar quarry, Santa Cruz, California..........................Ulrich Burchard on the Kremsmiinster museum in Austria was taken largely from his recent book, Mineral...Minerals Mineral & Needle Craft Creations, Inc. Quarry Enterprises Wallingford, CT Oceanside, NY John...Hyde Park, MD Pawtucket, RI Facet Tool Co. Sea/Land Minerals Oceanside, NY Peekskill, NY Trafford...the w o rld — with special emphasis on Germany, Austria and Switzerland. Articles on the fundamentals and |  | | Book | | barytes, aragonite, cerussite, arsenopyrite, marcasite, antimonite, hemimorphite, olivine, and topaz... haematite, cinnabar, proustite, pyrargyrite, graphite, and native elements such as arsenic and bismuth...lattices of two modifications of native carbon: (a) graphite, (b) diamond crystal systems, and thus display...both are calcium carbonates. Pyrite is cubic, marcasite orthorhombic, but both are bisulphides of iron...modifications of pure carbon: diamond (cubic) and graphite (hexagonal). A peculiar class of false crystal | | | Book | | barytes, aragonite, cerussite, arsenopyrite, marcasite, antimonite, hemimorphite, olivine, and topaz... haematite, cinnabar, proustite, pyrargyrite, graphite, and native elements such as arsenic and bismuth...lattices of two modifications of native carbon: (a) graphite, (b) diamond crystal systems, and thus display...both are calcium carbonates. Pyrite is cubic, marcasite orthorhombic, but both are bisulphides of iron...modifications of pure carbon: diamond (cubic) and graphite (hexagonal). A peculiar class of false crystal |  | | Journal (article/letter/editorial) | | explain the situation. Texas has very little federal land in its mineralized areas, most of which are on private...guarded by its owners and users. (Even the private land in the upper New England states is generally more...hunting to many landowners, there is little unused land. In this open country, trespassers are easily spotted...by Lake Buchanan in 1938. The Terlingua mining district is noted for its rare mercury minerals. Mining...miles W of Temple in abandoned limestone quarry; marcasite* (spear-point crystals; groups up to 10 cm) |
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