 | | Report (issue) | | Gold in Minerals and the Composition of Native Gold Gold in Minerals and the Composition of Native...Native Gold By Robert S. Jones and Michael Fleischer GEOLOGICAL SURVEY Washington 1969 CIRCULAR 612...considerations ----------------------------------------Gold in minerals ------------------------------------------------------...------------- _ Composition and the fineness of gold ---------------------------- ___ References cited...Analyses of gold in minerals made since 1954 --------------------10 4. Variation in fineness of gold with depth |  | | Journal (article/letter/editorial) | | of Birmingham] at 07:41 09 January 2015 Specimen Gold from the' - _ Great Basin Minerals Lisa Court...collection Figure I . Overview of the Olinghouse district, looking northeast: Pete Evatt photo. very fine...fine and unusual wire and nestlike, wiry aggregate gold specimens. Behind the discovery and distribution...Ci full-tiine ininem1 clealei: Location This district is located about 35 miles east of Reno, near the...certificate. Figure 4. Map of the Olinghouse district, courtesy Alta Gold Company. brutal at Olinghouse-gale-force |  | | Book (edition) | | Brazilianite, 35 mm, Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed...groups: The number of new mineral species may grow as an avalanche, flooding the mineral population with tens...lepidolite, wolfrarnite). In many cases, minerals have an intermediate composition between theoretical end-members...to crystallographic tenns (e .g. prismatine), to an organization (e.g .. mgriite). to a journal (minrecordite)...form. Many minerals display characteristic twinning, an intergrowth of two or more individual crystals of |  | | Journal (issue) | | Mandarino Famous mineral localities: The Annaberg District, Lower A u stria ...............................paragenesis, classic and new locations, etc. are invited. An audience of knowledgeable amateurs as well as professional...reported here. This wealth of world localities makes for an interesting compilation of occurrences, associated...mine, Czech Republic Mrazek et al. (1994) report an occurrence of namibite from the Elias mine, Jachymov...and pucherite. The namibite here is dark green with an anhedral to subhedral habit. Rough, flattened crystals |  | | Journal (issue) | | Advertising Manager Thomas P. Moore Tpmoorel@cox.net A gold specimen from the Spanish Dry Diggings, Eldorado...Albite, 11.2 cm, from the La Marina mine, Muzo District, Boyaca Department, Colombia. See the article...magazine; 'TU be the first to join," said Bryan. It was an excellent idea, but it needed a point man. At the...Fellows program receives an attractive certificate each year, which can be framed on an office or mineral room...room wall. And in 2016 we began presenting gold medallions-large pins with a magnetic clasp--that can |  | | 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 |  | | Book | | aid to 220 species and varieties âą âą Includes an introduction to the world's key mineral-forming environments...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...visual aid to 220 species and varieties Includes an introduction to the world's key mineral-forming environments...southwater , This edition Is published by Southwater, an imprint of Anness Publishing Ltd, Hermes House, 88-89 |  | Smith, J.F., Wadsworth, A.H., Cooper, J.R., Farwell, F.W., Weissenborn, A.E. (1945) San Pedro and Carnahan mines, New Placers mining district, Santa Fe County, New Mexico. Open-File Report Vol. 1945 (45-21) US Geological Survey doi:10.3133/ofr4521 | Report (issue) | | GEOLOGICAL SURV5T. PEDRO AI4D CARNAH.AN MINES, MEET PLACERS MINING DISTRICT SANTA FS CO., N2VT iiEXICO v j ...SURVEY INDEX MAP SHOWING LOCATION OF NEW PLACERS DISTRICT, SANTA FE CO U NTY,-NEW MEXICO 7650 Lower...A. E. WElSSENBOfW SAN PEORO MINE, NEW PLACERS DISTRICT, SANTA TE COUNTY, 'NEW MEXICO, i DETAILED SECTION...*'5<, ^ 6."" Reconnaissance map of New Placers District, v Geologic and Topographic- map of San Pedro...-Composite plan of-stopes east of Shaft fault showing scheelite concentrations. [ 10,** Geologic sections through |  | | Journal (issue) | | specimens, the researcher should still be provided an opportunity at least to visually examine the best...published recognition for his contributions. Sometimes, an inferior sample is provided for description, and...perspective) to be in poor taste. The finding of an undescribed new mineral by a collector is not instant...on all when one is honored. However, this might be an inevitable condition considering the very personal...come back to him someday , they are best considered an unexpected bonus. The Mineralogist Having discussed |  | | Journal (issue) | | detonators. The last injury serious enough to send an employe home from work, five years ago, was a wrenched... In fact, no lost-time injury has been caused by an explosion in the plant since Atlas converted to Manasite...blasting caps and omitted fulminate of mercury as an ingredient in these products some twelve years ago...sible in the plant, as well as in the quarries, mines and construction jobs where blasting caps are used...Cindnih Connintan ; Small Minesâ Importance Emphasize Northwest Mines Meet. Platoro on the Conejosâby |  | | Report (issue) | | some picking. On The Web Rudolf Watzl, the gent from an Austrian Strahler family who now runs the Saphira...(see under âGalleriesâ) are a few crystal groups of gold from a find in September 2015 at Serra do CaldeirĂŁo...2016 issue now being printed), this is marvelous gold and thereâs plenty of it: hundreds of first-rate...tortured-looking, are sharp-edged all around: the gold stayed âin placeâ once weathered out from its host...web dealers besides Rudolf now also have the new golds from Brazil, but to get a feel for how good they |  | | Book | | edition is published by Hermes House Hermes House is an imprint of Anness Publishing Ltd Hermes House, 88-89...stones to pieces theyâre still just stones, but to an like saâ many roadmakers run daft. experienced...(bottom), also known for obvious reasons as âfool'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 |  | | Journal (issue) | | paragenesis of the Little Three mine pegmatites, Ramona district, San Diego County, California ..................e ssa rtin e d ik e , L ittle T h ree m in e , S an D ieg o C o u n ty , C alifo rn ia. Los A n g e le...is the execution of the square root of a number. An increasing number of people have no idea how to do...all kinds of work later on. You may be able to make an important decision on the spot or be able to help...employment, he or she in many cases begins work on an independent level or a minimally supervised level |  | | Journal (article/letter/editorial) | | and the symposium is Gold. In the early years of the Tucson show, the price of gold was The Mineralogical...and while gold no longer officially backed American currency, it was nevertheless used as an international...countries. Few gold mines operated in the United States during these years; most earlier mines had failed...forced closure during World War II. The active mines were for the most part underground operations whose...costs had to be balanced against the fixed price of gold, and profits consequently were low. There were universally | | | Journal (issue) | | specimens, the re searcher should still be provided an opportunity at least to visually examine the best...published recognition for his contributions. Sometimes, an inferior sample is provided for description, and...perspective) to be in poor taste. The finding of an undescribed new mineral by a collector is not instant...on all when one is honored. However, this might be an inevitable condition considering the very personal...come back to him someday, they are best considered an unexpected bonus. The Mineralogist Having discussed |  | | Book | | (GERMAN) E D I T I O N writer, enlarged the book to an extent not permissible, and frightened t h e reader...comparative study from colleagues, institutes, and mines; many samples were collected by the writer himself...have been approached regarding the publication of an English edition of The Ore Minerals and Their Intergrowths...Washington G. K U L L E R U D , Washington, D.C. H. VAN DER LAAN, Delft, Holland B. F . LEONARD, Denver, Colorado...were for this reason made rather detailed. They are an essential part of the contents of the book. I have |  | | Report (issue) | | are maintained as part of a statewide database on mines, prospects and mineral occurrences throughout Alaska...distance east of Swift Creek. The prospect is at an elevation of 4000 feet in the southeast quarter of...Pb Other: As Ore minerals: Arsenopyrite, galena, gold, pyrite Gangue minerals: Limonite, quartz, sericite...arsenopyrite with trace amounts of silver and free gold. Gold is preferentially in smaller quartz veins, none...about 140 feet. The sulfide body has been exposed in an open cut, a 15 foot shaft, eleven-foot adit and trench |  | | Catalog/List | | NATURE & SCIENCE AUCTION DECEMBER 8, 2021 | DALLAS GOLDS, GEMS & FINE MINERALS Front Cover Lot: 72050 Inside...only. Please contact Client Services to schedule an appointment. Heritage Auctions | 2801 W. Airport...only. Please contact Client Services to schedule an appointment. Heritage offers extended payment plan...session begins. Fax: 214-409-1425 Lots are sold at an approximate rate of 65 lots per hour, but it is not...featuring a boutique sale of incredible Golds â including the largest Gold nugget ever found in Alaska AND the |  | | Book | | index. 1. Mines and mineral resourcesâAsia. 2. Mines and mineral resourcesâAustralia. 3. Mines and mineral...them, mineralogists have come to recognize certain mines, quarries, and mineral deposits as having produced...notable example in this category is the Nuristan District of Afghanistan, which over the past 10 years has...amount of work involved in obtaining information for an effort of this magnitude became at times exhausting...The book is arranged geographically, generally in an east-west direction. Asiais treated country by country |  | | Journal (issue) | | SPECIMENS. By Harry Y . Drake ...................... AN INTERESTING CAVE IN BORNEO ............................................. MARK FOSTER STAKES OUT SCHEELITE CLAIMS ...................... COLLECTORS' TALES...to supplement with foreign purchases. Manganese is an example. In normal times the United States produced...per cent of our needs. Pres. Roosevelt has ordered an enormous expansion of our armor plate program on...ores are required to make ferromanganese which is an alloy containing 80 per cent Mn and 20 per cent Fe |  | 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 FalĂ©mĂ© 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...interpreted to have formed through phase separation of an aqueouscarbonic fluid, which locally mixed with a...hypersaline brine of metaevaporite origin. Recognition of an intrusive relationship between the FalĂ©mĂ© batholith...unmixing of an aqueous carbonic fluid derived from the devolatilization of sedimentary rocks with an organic |  | | Journal (issue) | | chunk of mineralized rock. Elite collecting involves an element of extreme rarity and exclusivity. Micromounters...reviled by perfectionists as the mother of all flaws, an offense to the eye. Wilber: A very small ding or...a crystal face, the luster can be compromised on an almost insensible level. Nanowilbers usually result...perhaps a higher luster than seen before, or maybe an extraordinary association with another remarkable...found in the lower price ranges. You, too, can become an âeliteâ collector, regardless of budget. Elitism |  | | Journal (issue) | | Famous mineral localities: The Cripple Creek Mining District, Colorado . . . . . . . . . . . . . . . . . ....significance, or address a subject having too limited an audience. Or they may require too many color photographs...journal, Axis. Visitors to the website are sure to find an ever-increasing amount of permanently archived esoteric...issue is still in print, there will be a price and an âAdd to Cartâ button for making the purchase. www...articles aimed at relatively new collectors with an interest in becoming advanced collectors and ultimately |  | | Journal (article/letter/editorial) | | N. J. McNaughton Source of Pb in orogenic lode-gold mineralisation: Pb isotope constraints from deep...one of the earliest gold mining centres in Western Australia. Over 142 tonnes of gold have been produced...produced from the district, and, on a gold per hectare basis, the Southern Cross greenstone belt in the southwestern...Ga) eruption ages which dominate in the Eastern GoldÂźelds Province. The Pb-isotope compositions of deep-seated...emplaced coeval with a craton-wide major orogenic lode-gold mineralization event at about 2.64±2.63 Ga, have |  | | Journal (issue) | | Mandarino Gallery Reviews: Pacific Mineral Museum Gold Show 2001 . . . . . . . . . . . . . . . . . . ....within the range utilized by the Postal Service. An unknown number of other non-gem species may also...the Mineralogical Record in business. Ours is not an impersonal business; we appreciate every renewal...(and, to a lesser extent, manganese), especially an incredibly bright and rich turquoise-blue, are the...for its fame and popularity. Although copper is not an element typical of complex pegmatites, the association |
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