 | | Book (edition) | | Brazilianite, 35 mm, Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed...series are also separately listed: andesine, oligoclase, labradorite, bytownite (series end-members albite...various degrees. less common are malleable (e.g gold). ductile (e.g. copper). sectile (e.g. chalcocite)...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....Another problem concerned genetic conditions in the gold-bearing "greenstone" in Abitibi province in northern |  | | Book | | (bottom), also known for obvious reasons as ‘fool's gold'. and there in the stone you may actually see fossils...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...and Below: Salt Cellar Tor in England's Peak District is one of several tors in this region. They are |  | | Journal (issue) | | estimates, the reserve prices, if any, and, most im portantly, the names o f the successful bidders...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: |  | | 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...crystal from the Italian Ahrntal, as well as several gold nuggets and large native silver specimens (,,feather...register from 1836. Photo: NHMV Original label to gold nugget {548 grams). Miass, Urals. Inv. No. A.i.739 | | | 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: |  | | Journal (issue) | | Liddicoat Letters Methods for Determining the Gold Content of Jewelery Metals Meredith E. Mercer Diamond...is ,set i s often as important as the gem itself. Gold is the m o s t popular metul for fine jewelry, and...m set therein. Four different methods of testing gold content m e evaluated i n the article hv Meredith...niabe pearl is 16 mm x 13 m m ; 18k white gold and yellow gold are highlighted b y wirework and granulation...Market-driven nomenclature, therefore, is not always a bad situation. We know that traditionalists on a scientist-dominated |  | | Report (edition) | | the a It is along each side of every Sulphurs, Golds and Coppers striking examples of the Native Elements...California. Particularly choice are the specimens of Gold. 9 The mineral is THE shown here COLLECTION...nuggets are plates, faces; quartz, around which it Gold, from elongation an while cavernous, masses... a of beautiful This 16 Ser- Q), 19, AUSTRIA host of less in the zinc group Cases (Desk...NEW FRANKLI, FROM RHODNITE THE COLLECTION mines. In recent years OF MINERALS extraordinarily |  | | 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 (article/letter/editorial) | | is established through andesine “andesites” to oligoclase “andesites” as dominantly the result. of fractional...trace elements may be considered from andesite-oligoclase andesite* this point of view. Over the range...he main changes in t,he series from basalt to oligoclase andesite will be first, noted and then t’he furt...discussed. Over t,he limited range from basalt to oligoclase andesite there are certain element,s which show...composit’ion, such as occur in the an&site and oligoclase andesibc. (ia and possibly MO are the only two |  | | 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 | | for the field rock saw; DeBeers Consoli¬ dated Mines, Inc., for the three stages in diamond cutting;...associated sulfide minerals. A product of the Tri-State district, where the corners of Missouri, Kansas, and Oklahoma...is the ruby-zinc va¬ riety. From the Tri-State district. gray color and metallic luster are characteristic...from one of the world's important tin-producing mines in Bolivia. Quartz intergrowth. This intricate...Arsenate. A mineral containing the arsenate ion (As04). Im¬ portant examples of this class include erythrite |  | | Book | | 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...India, where it occurs near Purstal, between Hydera¬ bad and Masulipatam. There are other localities, Perma...generally found loose in the sand, especially along with gold dust, as is shown in an example in the British Museum...possesses a speci¬ men of a crystal attached to alluvial gold. In Brazil it has been found in itacolumite or flexible |  | | 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 | | , for the field rock saw; DeBeers Consolidated Mines, Inc., for the three stages in diamond cutting;...sulfide minerals. A product of the Tri-State district, where the corners Missouri, Kansas, Oklahoma...sphalerite is the ruby-zinc variety. From the Tri-State district. Molybdenite. This specimen displays a foliated...from of the world’s important tin-producing mines in Bolivia. ' Quartz intergrowth. This intricate...sulfarsenides or arsenide-sulfides. Assay. The analysis of gold and silver ore to determine its is fire assaying |  | | Journal (issue) | | Speed Polishing — Young . . Page 323 Fate of Gold Jewelry Work.......................... Page 330...cent meeting of the Mineralogical Society of the District of Columbia. He exhibited motion pictures of the...Cutting and the Collector Pegmatites Spruce Pine district Perth Carolina DR. WALDO H. JONES The Institute...that unless I had visited the Spruce Pine, N. C., district, I had not really seen a mica or feldspar mine...operating mining properties in the Amelia County district of Virginia. I had an opportunity to visit the | | | Book | | , for the field rock saw; DeBeers Consolidated Mines, Inc., for the three stages in diamond cutting;...su lfide minerals. A product of the Tri-State district, where the corners of Missouri, Kansas, and Oklahoma...sphalerite is the ruby-zinc variety. From the Tri-State district. Molybdenite. This specimen displays a foliated...sulfarsenides or arsenide-sulfides. Assay. The analysis of gold and silver ore to determine its precious-metal content...having the properties of an element. Auriferous. Gold bearing. • Bladed. A mineral habit consisting of |  | | Journal (issue) | | of the follow ing m ines of the Franklin-Sylva district, N orth C aro lina: Buoy #1 m ine Ledford C ove...43 K. C. Brannock Rodingite N ear The Thetford Mines, Q u e b e c ............................. 45 address...areas, the failure to share the news of M aine mines and quarries. It is donating good collecting sites...countless projects not yet form u we can expect im provem ent. It is worth the lated. I have long known...of M iner group efforts to clean up and control im por alogical and Lapidary S ocieties about som e |  | | 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 |  | | Report (issue) | | amount of punching 'required ror data pre paration, s im plicity of programming and brevity of com puting...free format. Altl1ough thi s may not prove to be an im portant issue in the future the experience in tl1e...drawn u p for gra phical · repre s entation of s ed im entary ro cks ., 1 8 primary s edimentary rock types...geochemical ., being broadly b ased on the divisions of Golds chmidt m odified by Rankam a and Sahama ( 1 950...and plan etary ex pl orati on t ogeth e r with the im p or - References and Selected ,Dibl iography GUPPY |  | | Book (volume) | | gem and lithiumbearing pegmatites of the Pala district of San Diego County, California, from which much...are usually simple and often crude. Deep shaft mines, so common in coal mining, are used only for the...became known from India and it was from old Indian mines r that the historically large diamonds such as the...European to visit the mines, but he was the first to chronicle them. The ancient Indian mines were situated in...the most important being those of the southern district. Although so important in the past they are now |  | | Journal (issue) | | 19-20 Tucson - Februory 10-12 IRVINE BOWL s p e c im e n s s u b je c t to p rio r sale F O U E S t AVETltlB...F a m o us M in e ra l L o c a litie s : T h e H im alaya D ike S y s te m , M e sa G ra n d e D is tric...F o o tn o te : T he R e o p e n in g o f th e H im alaya M in e ......................................u re s a b o u t 3 cm a c ro s s . T h is s p e c im e n is re g a rd e d by m a n y as th e fin e s t...A third detrimental influence is the setting of bad examples. What is a new collector to think when he |  | | 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, |  | | Report (issue) | | Bulletin 917-D TERTIARY DEPOSITS OF THE EAGLE-CIRCLE DISTRICT ALASKA BY J. B. MERTIE, JR. Mineral Resources...Eagle-Circle district.._ ill 216 214 TERTIARY DEPOSITS OF THE EAGLE-CIRCLE DISTRICT, ALASKA By J...contain more or Jess gold in their valleys,, and some of these valleys contain important gold placers, which...Recently, under the stimulus of a higher price for gold, dredges have been installed in the valleys of Coal...quantity of gold. Miners and geologists have thought for many years that these workable gold placers were |  | | Journal (article/letter/editorial) | | albite solid solution ~-]-An--~ plagioclase at solidus IM iTnchnlc CI, 7A increasing local order I T , 14A...are highly controversial (M~aAw, 1961; LAVES and GOLDS~ITt{, 1961 a, b). Here it is sufficient to describe...An 1 _+1 and Ane5 +5- The ratio of albite to oligoclase was never less than one since no intergrowth...1953; GOLDSMIT~ a n d LAvEs, 1956; LAVES a n d GOLDS~rr~, 1954a, b, c, 1955a, b, 196I a, b. 1. Anorthite...here in question. A word like "district" transformation might not be a bad one; it would indicate its most |  | | Journal (article/letter/editorial) | | silicon in the silicate rock-forming IO Table 6. Ge~~im~ in igneous rocks and their m~erals Sample Ge,...Pegmatitic andesine, Hemet, Calif. ; Anorthite; Oligoclase Augite, Franklin, New Jersey Augite, Danville...distribution of the elements. J. (?hern”. Rot. 1, 655-875. GOLDS&UDT V. M. (1954) Geochemtitry. Clarendon Press,...Gesteinsanalysen. Natzcrwissenschaften21, 382-365. GOLD~CZIM~DT V. M. and PETERS C. (1933) Zur Geochemie |
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