 | | Journal (article/letter/editorial) | | tät, Goldschmidtstrasse 1, 37077 Göttingen, Germany b Department of Geology, Sharood Technical University...localities in 8 countries (U.K., Czech Republic, Germany, France, Luxembourg, Egypt, Nigeria, U.S.A.) were...magnetite Fe2+Fe3+2O4 is higher than 75:25 and lower than 20:80). Field II contains the analytical points...differentiated within the diagram, consist of limonite and/or hematite which replaced either chamosite...Basin of France. Ironstones of the Salzgitter district of Germany and the eastern part of the English |  | | Journal (article/letter/editorial) | | vertioal lines show positions of field boundari~ at lower concentrations of carbonate, sulphide, and silica...less than this. Note that the stability of 63 KONRAD B. KRAIJSKOPF the sulphides is surprisingly little...substitute for braunite or manganite, as is Fe,O, for limonite and FeSiO, for chamosite. The simple fact that...that any combination of the minerals hematite (or limonite), siderite, pyrite, magnetite, and iron silicate...abnormai 65 concent,rations of Mn+f, and KONRAD B. KRAUSKOPT should be accompanied by no primary |  | | Journal (article/letter/editorial) | | Stuttgart, Azenbergstr. 18, D-70174 Stuttgart, Germany Department of Earth Sciences, Sultan Qaboos University...Sobolev and Shatsky, 1990) and the Erzgebirge in Saxony (Massonne, 1999). However, the diamondiferous rocks...that occurs within the eclogite megaboudin of the lower As Sifah Unit at the northeastern coast of Oman...of phengite- and garnet-rich metapelites of the lower As Sifah Unit were not obvious, we started an investigation...as means to recognize an early UHP event for the lower As Sifah unit. A further target of our study was |  | | Journal (article/letter/editorial) | | Willstaett-Eckartsweier Germany info@wendel-minerals.com Clara Mine The Figure 1. Dumps of the Clara mine where collecting...a small fee. Near Wolfach in the Black Forest Germany From the Myth of the “Golden Calf ” to Modern Mining...to be told even now (List 1969). Today, the Clara mine uses the latest technology and is one of the most...the best quality. Location and History The Clara mine lies in the upper Rankach Valley, about 5 kilometers...located in the central Black Forest in southwestern Germany, in the province of Baden-Wurttemberg. It might |  | | Book | | [(OH)5 (P04)4]' 6 H20 (monoclinic, brown) Rotlăufchen Mine near Wetzlar/FRG Original size 5 x 6 mm ISBN-13:...a deeper view of the crust in mines. The deepest mine shafts are those of the gold mines in the Witwatersrand...Harz/F.R.G.; Freiberg, SChneeberg, and Annaberg in Saxony; Pfibram and Jachymov (Joachimsthal) in Czechoslovakia...in the sedimentary copper deposits at Mansfeld, Germany. Other than in jewelry and silverware, its main...century. Its thatched 3 Native Gold on Quartz Grace Mine, Ontario/Canada Original size 19 x 30 mm Isometric |  | | Report (issue) | | Pineapples BY s1 AND ANN FRAZlER 33 Kirschweiler, Germany: An Historic Opal Cutting Center BY KLAUS EBERHARD...J. NEVILLE 30 Brazilian Opal and the Boi Morto Mine BY BOB FARRAR Fossil Treasures from Lightning Ridge...in gemstones, especially from Idar-Oberstein, Germany. Nature has provided us with a gift of magical...in the museum at Castle Friedenstein in Gotha, Germany. Fact & Fiction: The Leakey Prehistoric Opal...Kirschweiler, a small village near ldar-Oberstein, Germany (page 33), stood poised to receive Australia's |  | | Report (volume) | | ______________________________ Alice and Bessie mine (Parks property)_______________________ Location...trenches and underground workings, Alice and Bessie mine, Sleetmute area. 2. Geologic map and section of...Cinnabar Creek mine, Kuskokwim Mountains. 5. Geologic map of the 820 adit, DeCourcy Mountain mine, and sketch...sketch map of the mine area, DeCourcy Mountain. 6. Geologic map of trenches at the Rhyolite property, Juninggulra...sections of mine area, Red Top mine, Aleknagik. 8. Map and section of adits, Red Top mine, Aleknagik. |  | | Book | | mineral pigments. LEFT: Malachite, Bwana M’Kubwa Mine, Ndola, Copperbelt, Zambia * 22 x 26 x 16 cm 22...Namibia * 20 x 18 x 14 cm Bladed stibnite, Ichinokawa Mine, Saijo, Shikoku, Japan * 10 x 1 x 1 om Acicular...manganese oxide on limestone, Solnhofen, Bavaria, Germany * 11.5 x 24 x 0.5 om MINERALS: PRODUCTS OF A...Brazil * 5 x 3 x 0.6 cm Platy muscovite, José Pinto Mine, Jaguaracu, Minas Gerais, Brazil * 12 x 19 x 6 cm...Malawi * 10 x 10 x 7 cm Calcite, San Sebastian Mine, Charcas, San Luis Potosi, Mexico * 10 x 8 x 6.5 |  | | Journal (article/letter/editorial) | | ALUMINO-FLUORIDE MINERAL ASSEMBLAGE FROM THE MOREFIELD MINE, AMELIA, VIRGINIA. L. E. Keam, James Madison University...hurmno-fluoride minerals found are very rare. The Morefield mine is the second known occurrence of these minerals...thomsenolite. Figure 2. Elpasolite Crystal, Morefield mine, Amelia, Virginia. ngure 3. Prismatic pachnolte...Russia. The pocket of crystals found at the Morefield mine may represent the finest known examples for several...Devon, England; at least six mines in Japan; Pinyok mine, Thailand; several other sites in Malaysia; and |  | | Book (edition) | | Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43...and several important mineral mixtures. (e.g. limonite and psilomelane) are included here to provide...Rice, Dolores co., both Colorado, at the Questa mine, Taos co., New 1994. Abernathyite K2[(UOJ 2l(AsO_J2]•6HzO...Harding Co .. South Dakota. and at the Fuemrole No2 mine, Emery co .. Utah. Also at Menzenschwand Scbwarzwald...the Sailauf quarry, Spessart Mts., Bavaria. both Germany, and from the Rabejac deposit, Herault dept.. France |  | | Journal (article/letter/editorial) | | regional facies: U.S. Geooxidized to hematite and limonite. Where car- bonate-apatitehas developedcolloformstructures...iron-formation: Ecom G•.oc.,v. 49, p. 235-293. Krauskopf,Konrad, 1967, Introductionto geochemistry: New York, McGraw-Hill |  | | Journal (article/letter/editorial) | | granite-breccia cemented by phonolite from the Gold Dollar mine in Arequa Gulch, Cripple Creek district, Colorndo...Peloritani mountain range, there are conglomerates of limonite, malachite, and azurite mixed with a yellow, ochreous... 886) and afterwards a t the South Kecln Copper Mine, Houghton Go., Michigan (Abstr., 1894, ii, 240)...Prussian-blue. The dark coloured portion has the lower sp. gr. of 4-214; it is therefore probably almost...carefully purified material from the Stockslager mine on Granite Creek in Eldorado Co., California. By |  | | Book | | Eastern Europe regional names as Bavaria, Bohemia, Saxony, Tyrol, and many others, are generally used without...dependent on the generosity of aristo¬ crats, as in Germany or Russia. Povarennykh would like to see a rational...Scotland, Ireland, Sweden, Norway, Denmark, Finland, Germany, France, Italy, Spain, Portugal, Belgium, Austria...chemist and mineralogist; student of Torbern Bergman; mine owner and mineral analyst; trained J. J. Berzelius...are an isomorphous series. rontgenite, Wilhelm Konrad Rontgen (1845-1923), German physicist; best known |  | | Journal (issue) | | Saxon minerals in the Terra Mineralia Museum (Germany). A group of Italian mineralogists presents a new...Massanek, Anna Dziwetzki "Unique Discoveries from Saxony" Special Exposition at the Terra Mineralia in Freiberg...Fluorite (with old labels). 7 x 5 cm. Schwarzwald, Germany. GM KFU #7461. 15-16. (on page 10). 15. Set of...of this collection were from Transbaikalia), and mine surveyor Yakovlev from the Southern Urals. By the...listed as Siberian), two from Brazil, and three from Saxony. The register also lists nine sapphires, twelve |  | | Journal (article/letter/editorial) | | California only at the type locality, the Dallas Gem mine, San Benito County. The occurrenceof sanbornite...reconnaissance by Gordon A. Macdonald (1941)and Konrad B. Krauskopf (1953). Pabst made the singlecrystal...University of Hawaii. Krauskopfite is named for Konrad B. Krauskopf, Professor of Geochemistry at Stanford...opaline substance and pyrrhotite has altered to limonite. Krauskopfite has also been found in relatively...They probably, eontained less than one per cent limonite and opal impurities. Macdonaldite is insoluble |  | | Journal (article/letter/editorial) | | hornfels chill-zone is evident at both the upper and lower contact of the sill with the sedimentary rocks....Graphite in ore: An unusual occurrence at the Sterling mine. The Picking Table 3ql):ll-13. Kvasnitsa, V. N....crystals have been found at Bell pit (to 3 cm) and Lower Colton Hill quarry (to 2 cm). One 1.5cm oxidized...2 cm) ill quarry with surhave been found at the Lower Colton H face alteration to uranophane. Halos are...ALUMINO-FLUORIDE MINERAL ASSEMBLAGE FROM THE MOREFIELD MINE, AMELIA, VIRGINIA. L. E. Keam, James Madison University |  | | Book | | editorial office, Ortlerstr. 8, DE-81373 Munich, Germany. e-mail: sw@lapis.de t: 2023. The copyright of...Removing a Specific Mineral 3.6.A Calcite 93 3.6.B Limonite 97 3.6.C Zeolites 97 3.6.D Gibbsite 98 3...editorial office, Ortlerstr. 8, D-81373 Mlinchen, Germany. E-mail: sw@lapis.de Legal Disclaimer Utilizing...Intro The importance of preliminary trials with lower quality specimens cannot be overemphasized. Chapter...ultrasonic devices. of ore Dr. Wolfgang STOLL(Hanau, Germany) provided detailed information on self-developed |  | | Book (edition) | | one species only, or even specimens only from one mine. Whatever limits the collector imposes on himself...crystals. In 1895, the Gern1an physicist, Wilhelm Konrad Rontgen (1845-1923), discovered x-rays and the...electrons, in effect shed them to drop down into a lower, filled-shell configuration, while those which gain...negative in charge. This process is illustrated in the lower part of Figure 4. Forces between ions are of a far...heat allows more freedom for all ions to do so. At lower temperatures, the entire frame,vork shrinks with |  | | Book | | Martin Meschede Laurence N. Warr The Geology of Germany A Process-Oriented Approach Regional Geology...Reviews Series editors Roland Oberhänsli, Potsdam, Germany Maarten J. de Wit, Nelson Mandela University, Port... Martin Meschede • Laurence N. Warr The Geology of Germany A Process-Oriented Approach 123 Martin Meschede...and Geology University of Greifswald Greifswald, Germany Laurence N. Warr Institute of Geography and Geology...Geology University of Greifswald Greifswald, Germany ISSN 2364-6438 ISSN 2364-6446 (electronic) Regional |  | | Journal (article/letter/editorial) | | assemblage consists of Lowermost Cambrian rocks. Its lower boundary is drawn along the basement roof, while...recognized and includes Lower-Upper Cambrian and Ordovician-Lower Devonian levels. The lower level is represented...consists of the clayey-carbonate (Lower-Upper Silurian) and sandyclayey (Lower Devonian) sequences to 1350...1350 m thick. The thickest (more than 1000 m) lower unit was accumulated during the Baltic Syneclise formation...assemblage includes the LowerUpper Devonian and Lower Permian rocks. The Carboniferous rocks are absent |  | | Book (edition) | | ores or from masses of native metal by smelting at lower temperatures, while iron, which rarely occurs native...crystals. In 1895, the Gerrr1an physicist, Wilhelm Konrad R ontgen (1845- 1923), discovered x-rays and the...SUITE Lusters: dull, earthy, kaolin, goethite (limonite); waxy, quartz (chalcedony): greasy, oily, cordierite...electrons, in effect shed them to drop do,-vn into a lower, filled-shell configuration, while those which gain...negative in charge. This process is illustrated in the lower part of Figure 4. Forces bet\-veen ions are of a |  | | Journal (issue) | | premises of of just just such a workshop, upper and lower, running round round the top of of the walls. with...visitor Visitor found that a diamond not.wholly mine was not. wholly composed of diamonds. Many other...stones were mined, such as bronzite, gypsum, limonite" limonite, , molybdenite, molybdenite, garnet, garnet...Mohs' scale, higher than, say, quartz at 7, but lower than diamond at 10. One must be clear, though, that...tube to theHydrogen furnace. Hydroled. in: in; lower down through a concentric concentric .tube and gen | | | Book (edition) | | one species only, or even specimens only from one mine. Whatever limits the collector imposes on himself...electrons, in effect shed them to drop down into a lower, filled-shell configuration, while those which...negative in charge. This process is illustrated in the lower part of Figure 4. Forces between ions are of a...heat allows more freedom for all ions to do so. At lower temperatures, the entire framework shrinks with...therefore flakes readily, is black in color, much lower in hardness and relative weight, etc. Other well-known |  | | Report (issue) | | P. Price 75$. 16. Geology of the Shasta King mine, Shasta County, California, by A. R. Kinkel, Jr...pp., 1 pi., 15 figs. Price 50$. Santa Rosa lead mine, Inyo County, California, by Edward M. Mackevett...Madera, Fresno, and Tulare Counties, California, by Konrad B. Krauskopf. 1953. 83 pp., 4 pis., 52 figs. Price...figs. Geology and ore deposits of the Afterthought mine, Shasta County, California, by John P. Albers. 1953...pis., 16 figs. Price 50$. Almaden quicksilver mine, 17. Suggestions for exploration at California, |  | | Book | | 123 Florian Neukirchen Berlin, Germany Gunnar Ries Marxen, Germany ISBN 978-3-030-34345-3 ISBN 978-3-030-34346-0...questions, or otherwise supported us. Berlin, Germany Marxen, Germany June 2019 Florian Neukirchen Gunnar Ries...works at CRB Analyse Service GmbH in Hardegsen (Germany) and in his spare time blogs about geoscientific...from the ore the values may be correspondingly lower. The concentration of economically interesting metal...is the minimum grade at which it is worthwhile to mine a certain deposit. Everything below it (low-grade |
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Konrad Mine, Salzgitter, Lower Saxony, Germany