 | | Journal (article/letter/editorial) | | Anthropology, . . . . . . . . .49I Paleontology, Am. Mus. . .494 Nat. Hist., . . . . . . . . . . '513...Exhibited by ROLAXD U. DIXON. 3. Designs of the Golds of the Amoor River. From tlie col2. lections of...Mining District, Colorado. f. Mother Lodc Mining District,, California. f Tenmile Mining District, Colorado...Basin. i. Monograph on the Crystal Falls Iron District of Michigan. tii. Monograph on the Illinois Glacial...University. 23. Telluride Gold Ores from Colorado, Specimens from the Cripple Creek district and from the Independence |  | | Journal (article/letter/editorial) | | gmnuiite-faoiee rooks and in predazzite from the Tyrol. corresponding to R minimum equilibrium temper&we...single omlcitegrain8 of some metsmorphic carhonatae am believed to be exsolution textures, on the basis...0.02 mg. The mixed aample was tranafermd to a graphite crucible and fumd at QOO’C for twenty minutea...bead crushed md mixed with an equal amount of graphite powder. Tao electrodes were fllled and areed....of the two analytioal methods, but Nos. 24 and 31 am clearly outside of this limit. This disorepancy oannot |  | | Book | | minerals. From precious native elements such as silver, gold and copper to complex silicates such as vesuvianite...pride of any geological collection. From the green, gold and blue iridescent sheen of labradorite to the...(bottom), also known for obvious reasons as 'fool's gold'. stone lying there. To start with, they probably...of an ancient treasure, lapis lazuli. Copper and gold were first used at least 10,000 years ago. They...times. colour makes them easy to see. Copper and gold were both too soft to make tools from, but the discovery |  | | Journal (issue) | | the Bement collection was particularly weak in golds, especially those of American origin. Louis Pope...MINERALS, itX'LR 'l!-;\.JEI .Y NIC11 IN CRYSTALLIZED GOLD l-\ND S IIJVER., OF A. DOHRMANN, Eso.J OF SAN FRANClSCO...Dohrmann auction catalogue (1886), showing California gold specimens: (35) Tuolumne County; 3.18 cm (36) Tuolumne... Jtmuar,,~Febn,ar,•, 1992 WFW WEW Figure 3. Gold from the Grit mine, El Dorado County, California:...traded a century later to William Larson. Figure 4. Gold from the Grit mine, El Dorado County, California: |  | | Book (edition) | | i'vi'r^iir^M MINERALOGY-, INCI '-DINO OBSERVATIONS ON MINES, ROCKS, REDUCTION OF ORES, AND THE APPLICATIONS...by DURRIE & PECK in the Clerk's Office of the District Stereotyped by J. H. New BENHAM, Haven, Ct...mining, their modes of reduction, the yield of mines in different countries, and the various applications...descriptions, there follow general remarks on mines, metallurgical processes, and other useful information...Pennsylvania. Ure's Dictionary of Arts, Manufactures, and Mines, has been a work of frequent reference, and the |  | | Book (edition) | | mining, their modes of reduction, the yield of mines in different countries, and the various applications...descriptions, there follow genera! remarks on mines, metallurgical processes, and other the the strict-...Pennsylvania. Ure’s Dictionary of Arts, Manufactures, and Mines, has been a work of frequent reference, and the...Noble Metals. 1. Platinum, Iridium, Palladium, 2. Gold, 3. Silver, Supplement Chap. VII. • • • ...Containing augite. Auriferous. [Lat. aurum, gold.) Assay. Containing gold. Axes, 24 of double refraction, 59 |  | | Book | | (bottom), also known for obvious reasons as ‘fool's gold'. and there in the stone you may actually see fossils...deep underground, such as those in the Austrian Tyrol and in Cornwall. Again, locating these sources required...practical dug mines to get at them underground. geological skill as they Copper and gold were first used...great unconformities (see Reading the Copper and gold were both too soft to geology book, De Re Metallica...as nickel years and some brand new - and is and gold that combine readily with rarely more than 10km/6 | | | Journal (issue) | | the Bement col lection was particularly weak in golds, especially those of American origin. Louis Pope...Dohrmann auction catalogue (1886), showing California gold spec imens: (35) Tuolumne County; 3.18 cm (36)...volum e 23, January-F ebruary, 1992 Figure 3. Gold from the Grit mine, El Dorado County, California:...a century later to W illiam Larson. F igure 4. Gold from the Grit mine, El Dorado County, California:...bequeathed to Harvard. Figure 5. The Grit mine gold specimen, 8.26 cm, shown as no. 55 on Plate I of |  | | Journal (issue) | | mineral localities: The Bastnas Mines, Riddarhyttan Ore Field, Bergslagen District, Vastmanland, Sweden ......BASTDAS ffiIDES RIDDARHYTTAD ORE FIELD, BERGSLAGED DISTRICT, VASTffiADLADD, SillEDED Lennart Ohman Hi:igviltsvagen...south-central Sweden, where tens of thousands of different mines have been worked for nearly a thousand years. Iron...fields, with approximately 300 large and small mines. Iron ore mining began in the mid-14th century,...certainty from the mid-14th century, making this district one of the oldest in Sweden. Though the mine was |  | | Journal (issue) | | Anniversary of the Munich Mineralientage, October 2013 The gold of Munich . . 1. Michael B. Leybov Notes from exfübitien.... . ., lcd bene eben ing 65 2. Johan Kjellman Gold: Voitsky Mine, Olonets, South Karelia, Russia ..... ... . .. .. 72 3. Renato Pagano Hallen Gold..» < + <<<: ve NE rene 74 Mineral Shows in Russia, Autumn...9), Volodarsk—Volynskii (vol. 12), Ural Emerald Mines (vol. 14—2), Belorechenskoe Deposit (vol. 15—2)...from museums outside of Russia — from Vienna (Austria), Budapest (Hungary), Berlin, Munich, Jena (all |  | | Book | | Naphtha 39 Carbons of the Mineral Kingdom . 39 Graphite . . . .39 Anthracite . . . .39 Common Coal . ...ORES— 1. NOBLE OB. PRECIOUS METALS. Gold ..... Telluric Gold .... Platinum . . . .44 Black-band...metallic lustre. We make use of the expressions gold-yellow, brass-yellow, silver-white, tin-white, lead...r-H P 03 dO ^ dj CO oT'p dS co © 8ft ® Po aM •p p 'p .a d TO PR P O > .2 b £ £ o O ■goo d...carbonic acid, which disappears, proving that, like graphite, it consists of pure carbon. We recognise, therefore |  | | Book | | edition by a team organized by Prof. Dr. C H R . AM S T U T Z (with additions and corrections by the...completing it more rapidly t h a n I can now; since I am more burdened by work of all kinds t h a n ever before...minerals associated with strongly radioactive ones. I am convinced t h a t in the future much new knowledge...comparative study from colleagues, institutes, and mines; many samples were collected by the writer himself...lead to a new and very voluminous book! I hope and I am convinced t h a t the new form of this book will |  | | Journal (article/letter/editorial) | | by and belonging to the California Division of Mines and Geology, Department of Conservation, is notable...The majority of these early pieces were samples of gold ore from the various districts in the Mother Lode...and miners branched out into minerals other than gold, the collection grew in number and diversity at... Located at the southern end of the Mother Lode Gold Belt in the foothills of the Sierra Nevada Mountains...minerals consisting of a single element (such as gold, silver, and copper) and continuing through the |  | | Journal (article/letter/editorial) | | swollen kamacite lamellae, and the presence of graphite from carbide decay in some plessite fields confirm...carbide has completely decomposed leaving irregular graphite veins. The artificial reheating unfortunately...also 'a new gold, whose specific gravity is greater than any of our at present known golds, .... and which...which fell on Dartmoor, and of which the School of Mines and British Museum also possess parts'. This is...part-slice. Neither appears to be in the Royal School of Mines, now incorporated in Imperial College, London. Readers |  | | Journal (issue) | | Russian Geological Society Musee de Mineralogie of MINES Paris Tech, Paris, France Mineral Observer. Mineral...Ltd. Photo: Michael B. Leybov First Page Photo Gold nugget., 548 grams. Miass, Urals, Russia. Natural...most repre sentative buildings of historicism in Austria After ten years of construc tion the building...the famous "Ambrasian Collection." of Archduke of Tyrol, Ferdinand II (l529-l595), parts of it were transferred...crystal from the Italian Ahrntal, as well as several gold nuggets and large native silver specimens (,,feather |  | | Journal (issue) | | ................................. 591 THE LEAD MINES OF HAMPSHIRE COUNTY, MASS. By E. C. Foster ···-···594...Peter Z odac .......................... 59~ STORY OF GoLD MOVIE. ········································...Peter Z odac.................... 611 FISHING FOR GoLD IN A LASKA ..................... ... ...... . .... H. (2 day trip) .August 29-T•illy Foster Iron Mines, Tilly Foster, N. Y. Sept. 12-Upper Merryall Quarry...crystals developed on the actual contact." End of quote (Am. Min. Nov. 1921, p. 162)-Agar. From the above you |  | | Journal (issue) | | Y-9 Mine & Smelter Supply Co. Denver 17, Colo. Mines Eng. & Equip. Co. San Francisco 4, Calif. Clyde...years. ercaac Mi Crs as , Pr a% FOR — A FR a am QUICK be a i » , a ae]F ac Pes 5 } _ Me esi... flare resistance, makes cable more watch mines. features of Cables do freedom a tougher adaptable...Co. Co. Au Buchon Silica Sand Co. United Clay Mines Corp. Cumberland Cement & Supply Deckers Creek Sand...Bros. Cleveland Cliffs Hanna Ore Co. Iron Barton Mines Corp. Co, H. C. Frick Coke Co. U.S. Coal & Coke |  | | Report (edition) | | brilliant are compact or even a piece of Graphite. so peculiar brittle and mass of greasy, black...their chemical principal composition Sulphurs, Golds and Coppers striking examples Sulphur specimens...California. Particularly choice are the specimens of Gold. 9 The mineral is THE shown here with COLLECTION...some and assumes pitted nuggets are faces; Gold, from in elongation an while cavernous, masses...example of interesting mineral area prisms 19, AUSTRIA host of less a This the silicate of manganese |  | | Journal (article/letter/editorial) | | Creek Geosyncline succession, After Rum Jungle District Special Sheet, Bureau of Mineral Resources~ 1960...the material "Vorgraphit", a precursor of true graphite. Patches of anatase up to 1.5 m across are common;...vein during diagenesis. The black material is graphite. D. D. H. S17 887'. × 10. Thin section Ore Mineralogy...of decreasing abundance are: dolomite, quartz, graphite, tourmaline, anatase, chalcedony, sericite, and...pressure shadows around pyrite crystals. Graphite Graphite is widespread throughout the ore and country |  | | Report (volume) | | 630 BUREAU OF MINES MINERAL FACTS AND PROBLEMS 1965 edition By Staff, Bureau of Mines UNITED STATES...INTERIOR Stewart L. Udall, Secretary BUREAU OF MINES Frank C. Memmott, Acting Director Created in 1849...has been cataloged as follows: U.S. Bureau of Mines. Mineral facts and problems, 1965. [Washington]...tl1e Interior, Bureau of Mines, 1965. 1113 p. illus. (Its Bulletin 630) 1. Mines and mineral resources-U...early in 1956, was an outgrowth of a Bureau of Mines commodity :erogram statement series. The statements |  | | Journal (article/letter/editorial) | | X-ray analysis a sam pIe is irradiated with a be am of electrons which causes X-ray 1 Contribution from...must also be considered in selected area analysis (Golds tein et al., 1977). As the electron beam of energy...X-ray diffractometer using CuKa X-radiation and a graphite crystal monochromator at a scan rate of 0.4°29/min...of X-rays and backscattered electrons from the graphite stub was assumed to be negligible as a first approximation...element) produced by the continuum originating in the graphite support and in the specimen was calculated by |  | Lambert-Smith, James S., Allibone, Andrew, Treloar, Peter J., Lawrence, David M., Boyce, Adrian J., Fanning, Mark (2020) Stable C, O, and S Isotope Record of Magmatic-Hydrothermal Interactions Between the Falémé Fe Skarn and the Loulo Au Systems in Western Mali. Economic Geology, 115 (7). 1537-1558 doi:10.5382/econgeo.4759 | Journal (article/letter/editorial) | | Park Place, Cardiff, CF10 3AT, United Kingdom Gold (Holdings) Ltd, 3rd Floor, Unity Chambers, 28 Halkett...Gounkoto Au deposits of the >17 Moz Loulo mining district, largely hosted by the Kofi series metasediments...the ultimate source of the ore fluids in orogenic gold deposits, with the metals scavenged from the same...Groves et al., 2019). The 17+ Moz Loulo Au mining district in the KédougouKéniéba inlier in western Mali...km Gounkoto Petowal Loulo Mining District Morila Mana district, Wona, Kona 12º Syama Siguiri Tongon |  | | Journal (issue) | | GREEN CENTER OF THE C O LO R A D O SC H O O L OF MINES FRIDAY AN D SATURDAY PAPER SESSIONS /0 SUNDAY AN...operations until it was one of the largest metal mines in Japan. As the value of antimony increased the...years as Japan’s greatest antimony GEOLOGY The mines at Ichinokawa straddle the Median Tectonic Line...conglomerates from the Sambagawa metamorphosed series of graphite and black phyllite schists. Quartz veins bearing...stibnite crystals as coming from the Yokohi antimony mines at Ichinokawa. Some other collections show a similar |  | | Journal (issue) | | The crystal, from the collection of the School of Mines, Paris, is about 1.7 cm tall. Photo by Olaf Medenbach...1983 n o t e s f r o m t h e ; EDITOR GOLD ISSUE SOLD OUT! As I write this (mid-January 1983)...issues these days is 7500 copies, but for the special Gold Issue we upped that to 10,000 copies. Nevertheless...at the Tucson Show). I guess there’s nothing like gold to get people’s attention. (See Letters column for...well-known mining engineer and authorRickard toured the mines o f Colorado’s San Juan Mountains on horse back |  | | Book (edition) | | with the miner and see the rocks in the deepest mines reach to depths of less though cage, this it...was called a single substances but mixtures Most mines produce not mineral. of 5 many things and vastly...mineral cabinet, perfect specimens of Arizona mines do. It must be pointed out, moreover, that many..."all that glitters "fool's gold" and the senses unassisted The is not gold," and the "false galena...as a Furthermoi-e, vegetation. forms of native gold, when, for example, a branch has l)een broken, |
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