 | | Book (edition) | | hydrated silica; and limonite, an amorphous hydrated iron oxide. CRYSTALLOGRAPHY AND CRYSTAL CHEMISTRY The...pyrite crystal makes it possible to assign it to a lower symmetry class than that of the geometric cube,...prism hexagonal prism corundum scalenohedron hematite hexagonal prism basal pinacoid + basal pinacoid...some of the contents of a unit cell must have a lower symmetry than that of the particular Bravais lattice...how, in the passage from the upper form to the lower, the silicon atoms are more symmetrically spaced |  | | Journal (article/letter/editorial) | | goethite sample from Scotland and a subaqueous bog iron sample from New Jersey, which can not be biased...temperature and the ␦18O of meteoric water experienced by iron oxides during their formation should be relatively...Ferric oxides are the most common stable phases for iron at Earth surface conditions. Ferric oxides occur...nH2O, etc.). Banded iron formations, ooidal ironstones, laterites, bog irons, and iron concretions are examples...samples consisted of ferric oxides, including bog irons in water-logged soil and stream beds, soil ferric-oxide |  | | Book | | the Habsburg dynasty elite to the Lower Hungarian mining district around Banská Štiavnica (Schemnitz...lead, and iron mines. It is well known how many interesting and admirable objects our mines offer. So...Johannes Mattes, Austrian Academy of Sciences, Austria, johannes.mattes@oeaw.ac.at, 0000-0002-8546-7149...description of the Lower Hungarian mining districts containing sketches of mines, smelters, and minting...collection of graphic art. During the visit of the Lower Hungarian mining region the whole entourage was |  | | Book | | , for the field rock saw; DeBeers Consolidated Mines, Inc., for the three stages in diamond cutting;...facets 1 on (the crown); 8 pavilion facets, 16 lower-girdle 21 Brilliant-cut Shaping a brilliant-cut...properly cut; (c) too shallow and 1 culet on the lower part (the and number of facets vary according facets...diamond saw. sizes, Pavilion. 26 The faster, lower part of a faceted gem, below the girdle. On a...gem stones of tumblers-the upper rotates, the lower vibrates. Polished shapes and sizes, known as baroques |  | | Book (edition) | | there is an imitation of the another system of lower grade, is particularly common in The result is reached...possible for the given system, while the others are lower in grade of symmetry. It is important to note that...bXos, comOn the other hand, under the classes of lower symplete, and Mpz, face). metry, a certain form... CRYSTALLOGRAPHY 22 In certain classes of still lower symmetry a given crystal form may have ut one-quarter...occur 29. Hemimorphic Forms. under the classes of lower symmetry than that of the normal class which are |  | | Journal (issue) | | broad categories: stony meteorites, stony irons, and irons (Norton, 2002; Norton and Chitwood, 2008)...Chitwood, 2008). They may contain some extraterrestrial iron and will likely stick to a strong magnet. Stony...chondrules. Achondrites typically contain very little iron and will not stick to a magnet, making them much...stony meteorites (Stone and Starr, 1932). Stony-iron meteorites are very rare and unique compared to...Institute, 2013) and consist of almost equal amounts of iron-nickel metal and silicate minerals. They have been | | | Book | | for the field rock saw; DeBeers Consoli¬ dated Mines, Inc., for the three stages in diamond cutting;...the upper part (the crown); 8 pavilion facets, 16 lower-girdle 21 Brilliant-cut diamond a brilliant-cut...cut; (c) too shallow facets, and 1 culet on the lower part (the pavilion). The propor¬ tions and number...but more expensive, diamond saw. Pavilion. The lower part of a faceted gem, below the girdle. 26 On... Two models of tumblers—the upper rotates, the lower vibrates. Polished gem stones of irregular shapes |  | | Book (edition) | | SECOND REWRITTEN \ ros. F.R.S. C.2E. DES MINES, AND METALLURGY PARIS OF GOLD AND SILVER,” EYC-...B. H. Brough, Associate of the Royal School of Mines, and formerly student at the Mining School of Clausthal...restored. I have, therefore, left the descriptions of mines and mining districts practically intact, and have...: : : ; i ; 3 Statistics of the United Kihedom Iron BRITTANY . + : IRELAND : ; : : . WICKLOW . E...: : : SOMERSETSHIRE . ; , : ; Forest of DEAN 3 ‘ IRon ORES OF THE Come NoRTHERN CoUNTIES . : IRONSTONES | | | Book | | , for the field rock saw; DeBeers Consolidated Mines, Inc., for the three stages in diamond cutting;...upper part (the crorvn); 8 pavilion facets, 16 lower-girdle 21 Brilliant-cut diamond Shaping a brilliant-cut...but 1nore expensive, diamond saw. Pavilion. The lower part of a faceted gem, below the girdle. 26 On... Two models of tumblers-the upper rotates, the lower vibrates. Polished gem stones of irregular shapes...except at the very base of the specimen, by the iron-oxide coating. This large group is from Galena, |  | | Book | | its own mer- scratch those with the same or a lower rating, but its. As a result, not even all diamonds...Republic. ESS ERLES The amount of magnesium and iron in actinolite may vary from specimen to specimen...the amount to continuous atomic substitution. of iron increases beyond a certain point, the mineral ceases...other pyroxenes, the darker the aegirine, the more iron it contains. Thus the color varies from dark green...the search for something else. Main Sources: ¢ Austria ¢ Canada England @ Germany @ Poland @ Russia @ |  | | Book | | metallurgist were investigations on the history of iron and steel as well as that of copper. Prof. Dr. Marc... . 2.3.4 Industrial Phase: Developed Bronze and Iron Age and Later . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . . . 3.4.12 Iron . . . . . . . . . . . . . . . . . . . . . . . ..... . . . . . . . . . . . . . . . . . . . . 3.6.6 Iron Placers . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . . . 5.4.12 Iron Working Slags . . . . . . . . . . . . . . . . . |  | | Book (volume) | | Rogers, . . . for in the lower column read in the column headed "lower." for c = qo' cos u sin X :...up 165 for to Temiskaming Cochrane district read district. Ref. 4, under oruetite, add See also... for VVakatipu district, CoUingwood, 294 Zealand read Wakatipu 303 line district, 8 in synonomy...P, for figure, for the lower face the lower face read R, and for the lower face-labeled n read N. ... 395 transpose the right hand figure with the lower right ha }id figure (Harz) hand figure, for f |  | | Book (edition) | | contribute to the science of mineralogy. An abundant iron mineral, goethite, is named after Johann Wolfgang...already rich in "old timers" from the famous zinc mines of Franklin, New Jersey, ,,vhich he inherited from...are being opened or systematically vvorked, as in mines and quarries, the amateur is far better able to...metals INTRODUCTION ll such as gold, silver, iron, etc. Even these are really never pure because they...if they are to be used. These are: Antimony Gold Iron Lead Mercury Sb Au Fe Pb Hg -from Stibium -from | | | Book (edition) | | contribute to the science of mineralogy. An abundant iron mineral, goethite, is named after Johann Wolfgang...already rich in “old timers” from the famous zinc mines of Franklin, New Jersey, which he inherited from...are being opened or systematically worked, as in mines and quarries, the amateur is far better able to...metals INTRODUCTION 1] such as gold, silver, iron, etc. Even these are really never pure because ... —from Argentum Gold Au —from Aurum Silver Iron Lead Fe Pb —from Ferrum —from Plumbum Sodium |  | | Book (edition) | | Mountains, Utah; (lower /eft) rnodochrosite, N’Chwaning mine, South Africa; (lower left, center) wulfenite...Cloud mine, Arizona; (lower right, center) mimetite, Tsiimehb, Namibia; (lower, right) gold, Amazonas...Graeber Cureton Mineral Company Colorado School of Mines Charles and Marcelle Weber Dan Behnke Demetrios...minerals is imparted by transition elements, especially iron, manganese, titanium, chromium, and copper. Despite...sulfide deposit; contains a concentration of hydrated iron oxide. habit The characteristic crystal form of | | | Book (edition) | | Mountains, Utah; (lower le ft) rhodochrosite, N'Chwaning mine, Sou th A frica; {lower left, center) wulfenite...Clouo rrnn·a, Arizona; (lower right, center) mimetite, Tsurneb, Namibia, (lower, right) gold, Amazonas...Graeber Cureton Mineral Company Colorado School of Mines cw Charles and Marcelle Weber DB Dan Behnke DE Demetrios...minerals is imparted by transition elements, especially iron, manganese, titanium, chromium, and copper. Despite...sulfide deposit; contains a concentration of hydrated iron oxide. habit The characteristic crystal form of |  | | Report (issue) | | 166 •• Gypsum.�., •• •• •• •• Vanadium • • 173 •• Iron and Steel • • •• •• •• •• Zinc • • 205 •• Lead ••...72 15 3,300 3,242 2,931 FOREIGN COUNTRIES Austria Emery, etc. •• •• •• Pumice •• •• •• •• Millstones...• • • • • • Grindstones, etc. (£ New Zealand) Austria . 1935 1936 1937 (£ 7 , 849) (£6, 'l37) ...•• •• Australia Total . . FOREIGN COUNTRIES Austria (estimated) • • •• •• France •• •• Ger1nany • •...available. (b) Ore remains at the mines. · (c) The shipments from mines of dried and washed ore were as |  | | Book (edition) | | Mineralogy, Museum of Geology South Dakota School of Mines & Technology Rapid City, South Dakota GEORGE ROBERT...formulas. We have indicated the ionic charge on iron and manganese. Hardness: Mineralogists have long...minerals is imparted by transition elements, especially iron, manganese, titanium, chromium, and copper. Despite...mass; (2) a concretionary lump of manganese and iron oxides found on ocean bottoms. occurrence The physical...resembling ocher, a yellowish red variety of earthy hematite. octahedral Having eight-sided forms or pertaining |  | | Report (issue) | | Gold • • Graphite .. •• •• • • • • •• Gypsum .. • • Iron and Steel • • •• • • • • Lead • • . .. Lithia Mica...(£15) 3,800 (£339) 3,242 FOREIGN COUNTRIES Austria • •• • • • • Emery, etc. • • Pumice • • .. . ....• • • • • • • • • •• FOREIGN COUNTRIES •• Austria (estimated) • • •• •• •• France • • •• • • Germany...810,000 (b) Ore remains at the mines. (c) The shipments from mines of dried and washed ore were as follo\\-�s...•• •• •• Total •• a FOREIGN COUNTRIES •• •• Austria •• •• Belgiwn •• France ,. . •• Germany (c) • • |  | | Book | | scattered throughout its interior, there may be enough iron, silicon and other heavy elements to make a dense...quarter of the diameter of the Earth and has a lower density. It has, therefore, only about one-sixth...impact crater believed to have been formed by a large iron meteorite which probably weighed about 50000 tonnes...into: I iron meteorites — made essentially of nickel-iron alloys (4-20 per cent nickel); 2 stony-irons — silicates...meteorites — consisting mainly of magnesium and iron silicate minerals. Many of the stony meteorites |  | | Book (edition) | | Tin, 51+6; Aluminum, 553 14. Iron and Ferroalloy Metals 561 Iron, 561; Manganese, 578; Nickel, 586;..... In these hundred years the production of pig iron has increased 100-fold, of mineral fuels 75-fold...geology to mineral finding in districts of waning mines. His knowledge is sought also by the metallurgist...parts: metalliferous deposits, such as gold, copper, iron, or nickel (Part II) ; and nonmetallic substances...fine placer gold in South America. At the ancient mines of Cassandra, Greece, which Sagui estimates to have |  | | Book | | Whence Do They Come? 82 Early Uses of Meteoric Iron Bibliography Appendix I Classification of Meteorites...meteorite Meteoric stone, Allegan, Michigan Meteoric iron, Mazapil, Mexico Meteor Crater, Arizona Portrait... Styria Meteoric iron, Casas Grandes, Chihuahua, Mexico The Cape York meteoric iron The Willamette meteoric...meteoric iron The Bacubirito, Sinaloa, Mexico, meteoric iron .... 20 21 22 2,4 26 27 28 . . . ... .... Iron meteorite, Owens Valley, California Polished slice of Cumberland Falls, Kentucky, meteoric |  | | Report (volume) | | ............................ 23 Manganiferous iron ores............................................................................ Descriptions of mines and deposits............................... Minor................................. Descriptions of mines and deposits ............................. 3 '................ v ........... 66 Descriptions of mines and deposits.............................. 66 New.............................. 70 Descriptions of mines and deposits ............................... 71 |  | | Book (edition) | | 3500 B.C. in Europe and earlier in Asia, and the Iron Age, beginning in Europe about I 000 B.C. and also...masses of native metal by smelting at lower temperatures, while iron, which rarely occurs native, is smelted...considerable time had to pass before the art of producing iron could evolve from the knovvn art of smelting copper...Fibrous Serpentine (asbestos), pectolile. Botryoidal Hematite ("kidney ore"), goethite, chalcedony. R ad iate...Marble, granite. Splintery Fracture Goethite, hematite ("kidney ore"), serpentine. Hackly Fracture Copper |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | example, gray antimony is now called stibnite, spathic iron is now known as siderite, and blue vitriol is now...Institut fur Mineralogie der Universitat Wien, Austria. Michael Zolensky: Lyndon Johnson Space Center...carbonate Species typical of mollusc shells, the iron compounds found in bacteria, and oxalate crystals...produced may result in observed optical character of lower symmetry than is expected for the crystal’s ideal...nine chemical elements: oxygen, silicon, aluminum, iron, calcium, sodium, potassium, magnesium, and titanium |
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