 | | Journal (volume) | | in mel ted rocks and breccias of some Canadian crater> (Currie and Shafiqullah , 1967, 1968; Currie,...careful investigation of each meteorite impact crater, and research into shock metamorphism will permit...AREA Location, size and topography The Lappajärvi crater lake is located at latitude 63°09'N and longitudc...the original crater fill and the fractured and brecciated bedrock surrounding the crater had a low resistance...glaciation. Th<:, present level of erosion oE the crater is unknown. However, especially during the Pleistocene |  | | Journal (issue) | | Hart Gem-A, London Karl Schmetzer Petershausen, Germany Ulrich Henn German Gemmological Association, Idar-Oberstein...Lore Kiefert Gemmology Consulting, Heidelberg, Germany Hiroshi Kitawaki Central Gem Laboratory, Tokyo...Elisabeth Strack Gemmologisches Institut Hamburg, Germany Tay Thye Sun Far East Gemological Laboratory, Singapore...Republic) and Goethe University (Frankfurt am Main, Germany) visited several classic mineral and gem localities...produced attractive specimens of calcite, halite, pyrrhotite, quartz and sphalerite (Chamberlain & Walter |  | | Journal (article/letter/editorial) | | Karl-Liebknecht-Str. 24-25, 14476 Potsdam-Golm, Germany. 2Deutsches Zentrum für Luft- und Raumfahrt, Institut...48149 Münster, Germany. 4Museum für Naturkunde, Invalidenstraße 43,10115 Berlin, Germany. 5 Humboldt-Universität...Institut für Physik, Newtonstraße 15, Berlin, Germany. Introduction: Laser-induced breakdown spectroscopy...spectra. Experiments: Pyrite (FeS2, Spain) and pyrrhotite (Fe1-xS, Kola Peninsula, Russia) samples were...although the typical Raman spectra of pyrite and pyrrhotite are still visible, additional peaks were found |  | | Journal (article/letter/editorial) | | Fe-rich serpentine and saponite, Fe-carbides and pyrrhotite were also present. Two FIB sections were extracted... Where sulfides are present, they consist of pyrrhotite and partly oxidized Fe-sulfides sub-domains....done since the identification of the Chicxulub Crater in 1991. Jan Smit, last year’s medalist, has looked...Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany. E-mail: moritzbarth@wwu.de. 2Institut für Mineralogie...Mineralogie, Corrensstr. 24, 48149 Münster, Germany. Introduction: Aqueous alteration plays a key role in |  | | Journal (article/letter/editorial) | | Laboratory Lehmweg Gifhorn, Germany, 5 Meteorite Recon Mühlendamm Hamburg, Germany. Introduction: Estimation...sedimentary deposits. The diameter of the largest crater is 250 meters. Craters are widespread in an oval...diameter of the crater is 20 meters. It is placed 600 m SE of the large simpletype impact crater of 750 meters...meters named Antofalla Crater on ignimbrite rocks of Cenozoic age. Acknowledgements: To Conicet, CONHIDRO...GRAVITY, MAGNETIC AND ELECTROMAGNETIC SURVEYS ON A CRATER ON BASALT OF BAJADA DEL DIABLO ASTROBLEME-STREWN |  | | Catalog/List | | PM CT 35 41059   WATER-CLEAR FLUORITE ON PYRRHOTITE Dal’negorsk, Tjetjuche, Primorskiy Kray, Far-Eastern...The matrix is a dark bronze metallic mass of Pyrrhotite that contrasts sharply against the ‘Ice-cube’...IMITATING CITRINE QUARTZ Bremke, near Braunschweig, Germany The habit of this unusual Calcite specimen looks...FREEFORM AGATE BOWL Handcrafted in Idar-Oberstein, Germany This freeform bowl of ‘tortoise shell’ patterned...Handcrafted in Idar-Oberstein, Germany Stone source: Erzgebirge Mountains, Saxony, Germany Colorless Quartz is punctuated |  | | Book | | phase function number density of craters when the crater diameter is 1 km smallest axis of triaxial ellipsoid...feldspar pentlandite perovskite clinopyroxene pyrrhotite olivine clay sulfide sulfide silicate sulfide...oldhamite orthoclase pentlandite perovskite pigeonite pyrrhotite ringwoodite saponite spinel 77 77 3.2 Minerals...sulfides found in meteorites include troilite (FeS), pyrrhotite (Fe1−xS) (x = 0 − 0.17), and pentlandite [(Fe...minerals such as phyllosilicates, magnetite, pyrrhotite, pentlandite, and carbonates (Bullock et al. |  | | Report (edition) | | have represented the upper portion of the original crater created by a violent phreatic explosion as the...other alluvial deposits. At Schneckenstein in Germany, yellow crystals of gemquality topaz have been...1995). In 1995, amethyst was being exported to Germany. This amethyst was cobbed and heat treated to lighten...River pearls were also sourced from Scandinavia, Germany, and Russia although most sources are now strictly... sphalerite, chalcopyrite, bismuth sulfides, pyrrhotite, and tetrahedrite– tennantite. The most common |
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