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| 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 |
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| iv / I / \ I JI ji 1 Wayne & Dona Leicht, 875 North Pacific Coast Highway, Laguna Beach, CA 926 (949)...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 |
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| VOLUME 38 • NUMBER 4 $15 Wayne & Dona Leicht, 875 North Pacific Coast Highway, Laguna Beach, CA 92651 (949)...locality-oriented studies (all laudable scientific goals), with an emphatic note about the value of publication. They...to a researcher or simply to people who want to see his specimens. Insufficient thought is sometimes...specimen is clearly visible for all to see. The viewer can see the subtle details of crystallization,...mineralogy among members of the public who are allowed to see them. That destiny can be fulfilled in only two ways: |
 | Meng, Lin, Huang, Fei, Gao, Wenyuan, Wang, Daoheng, Zhu, Jianxi, Xing, Changming, Tan, Wei, Tang, Xu (2020) Multi-stage hydrothermal processes at the Laozuoshan gold deposit in NE China: Insights from textures and compositions of sulfide assemblages. Ore Geology Reviews, 117. 103275 doi:10.1016/j.oregeorev.2019.103275 | Journal (article/letter/editorial) |
| Multi-stage hydrothermal processes at the Laozuoshan gold deposit in NE China: Insights from textures and...Multi-stage hydrothermal processes at the Laozuoshan gold deposit in NE China: Insights from textures and...1016/j.oregeorev.2019.103275 This is a PDF file of an article that has undergone enhancements after acceptance... Multi-stage hydrothermal processes at the Laozuoshan gold deposit in NE China: Insights from textures and...Ministry of Education on Safe Mining of Deep Metal Mines, and School of Resources and Civil Engineering, |
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| 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...amphibole group). For more detailed information see "Dana's System of Mineralogy•· ( 1944, I 951, 1962)...to crystallographic tenns (e .g. prismatine), to an organization (e.g .. mgriite). to a journal (minrecordite) |
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| White Development Officer William D. Panczner GOLD! Associate Editors written content Paul E. Desautels...Julius Weber Mamaroneck, N.Y. Articles Collecting gold mining memorabilia................................323 by W. E. Wilson and R. Bentley Nova Scotian gold ..................................................County, California: a modem source of crystallized gold .................................................... 347 by A. R. Kampf and P. C. Keller Harvard gold ............................................... |
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| The M OC K I N G B I R D Gold Mine Downloaded by [University of New Mexico] at 10:16 27 November 2014... or the avid mineral enthusiast, gold, especially crystallized gold, is one of the most coveted of all...all collectible species. Of the thousands of known gold occurrences, few have produced aesthetic macroscopic...of the finest gold specimens known, including incredible examples of crystallized gold from the Colorado...Sixteen-to-One, Eagle’s Nest, Diltz, Artru, and Mockingbird mines. These specimens commonly have bright luster and |
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| 1992 Volume Twenty-three, Number Three ® Articles Gold in South Africa ..................................9 cm. This specimen is the best of three found in an ice-filled pocket; another of the three is shown... placed into storage. This is a exhibits is that an example of nearly 6'verything which is really good...Bideaux , co-author of Handyears, by people who do not see the value in comprehensive public book of Mineralogy...additional of note. The student of rare minerals will see much that he buildings in the world. Completed in |
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| 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...(GERMAN) E D I T I O N writer, enlarged the book to an extent not permissible, and frightened t h e reader...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 |
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| aid to 220 species and varieties • • 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 |
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| 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 |
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| 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...www.mtnminitl.com e-mail: dudley@mtnminitl.com North Star Minerals So. Illinois & Eastern European Minerals...(and, to a lesser extent, manganese), especially an incredibly bright and rich turquoise-blue, are the |
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| publications are issued containing information of an aut horitative character dealing with the various...industry in that country. Colombia still retains an important place, while other countries now in the...was recovered, as in the alluvial gold workings of the Choco district, it was usually thrown away as worthless...spurious coins struck in crude platinum and coated with gold. About this time, c1·ude platin11m was known as...iI1 small quantities. It may occur native, or as an arsenide (sperrylite ), or as a sulphide (cooperi |
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| ( \ \ J A T T TTl Wayne & Dona Leicht, 875 North Pacific Coast Highway, Laguna Beach, CA 9265 A '...they should be criticized for it. If they produce an inferior exhibit, they should be called to account...collections as well. Today, mineral collectors are an active lot. They have more and better means of communication...more likely to go wherever they must in order to see important new museum displays. Also, major mineral...*Fossils * Gems *Jewelry * \ Holiday Inn (Denver North) & Best Western (Central) 0 j t. ^ Sunday Easter |
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| mineral localities: The Bastnas Mines, Riddarhyttan Ore Field, Bergslagen District, Vastmanland, Sweden ......from the Trimouns talc quarry near Luzenac, France (see the article beginning on page 225). Freddy Marty...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, |
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| to: 7413 N. Mowry Place Tucson, AZ 85741 Articles Gold in South Africa ..................................collection; p h o to b y H a ro ld a n d E rica V an P elt. ISSN 0026-4628 •Continued on p. 299 Copyright...management in recent years, by people who do not see the value in comprehensive public exhibits devoted...in the biochauvinistic world of Natural History, an almost exclusive emphasis on the plant and animal...long gone and unable to defend it. It is good to see the hall in the daytime, when the natural light streaming |
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| Advertising Manager Thomas P. Moore Tpmoorel@cox.net A gold specimen from the Spanish Dry Diggings, Eldorado...from the La Marina mine, Muzo District, Boyaca Department, Colombia. See the article on the Colombian...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 |
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| Rosenzweig IN SID E FRO NT COVER: Richard W . Thomssen Gold from the St. Josefs mine, Verespatak, Romania (left)...from the including photocopying —without emerald mines on the written permission from the Takowaja River...Ekaterinberg; prohibited. Individual photographers an aquamarine crystal (lower left) or their supporting...ownership Transbaikalia, USSR; of photography. (See last page a large golden beryl crystal tor illustration..........................................3 9 Fersm an M ineralogical M useum Moscow, U SSR ........... |
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| edition is published by Hermes House Hermes House is an imprint of Anness Publishing Ltd Hermes House, 88-89...getting under way, look closer and you begin to see subtle the famous Scottish poet Sir Walter differences...stones to pieces they’re still just stones, but to an like sa’ many roadmakers run daft. experienced...experienced rock hunter, each has its They say it is to see how the warld was own fascinating story to tell. ...strange activity. magnifying glass, and you begin to see Yet go to a beach or any stream it is made from |
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| advertising 602-299-5274 jggestions for authors See Vol. 12, no. 6, p. 399, or write for copy. Replacement...collection of the School of Mines, Paris, is about 1.7 cm tall. Photo by Olaf Medenbach. See Notes from Mexico...influence species dealers from the perspective of an ivory tower. Such influence must come from within...striven to build cooperation and it saddens me to see a few unethical persons tear it down. In almost all...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) |
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| ........619 by W. E. Wilson A good time was had: An Adventure in Provenance............................(deceased) Peter L. Via (deceased) SENIOR FELLOWS Gold Level Scott A. Rudolph (2022) Gail & Jim Spann...minerals around the age of seven, on his first visit to see the mineral exhibits at the American Museum of Natural...Another early mentor was Dr. Katherine Blodgett, an employee at General Electric Research Laboratory...situated at an elevation of about 550 meters above mean sea level in the Caldbeck Fells, an area of desolate |
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| Place Tucson, AZ 85741 ‘ Continued on page 111 Gold! Introduction G old notes from the e d i t o r ...Birch 5 California The history of crystallized gold in C a lif o r n ia ................ 33 by W. C...otable gold occurrences of G eorgia & A labam a . . . . 65 by R. B. C ook N o rth C arolina gold ........hat's new in gold? Venezuelan gold (by W. E. W ilson) .......................... 89 A rizona gold (by W. E...89 Siberian gold (by W. E. W ilson) ................................. 89 C alifornia gold (by D. L e ic |
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| is available in the various scientific journals. An attempt has been made to collect, summarize and group...properties together with an orientation sketch for biaxial minerals and an introductory paragraph, and...which can be used determinatively have been drawn to an exact centimetre scale, thus enabling the reader...the present text. Mineralogical Abstracts have been an indispensable starting point for bringing many papers...Limonite 111 118 122 124 SULPHIDES Pyrite Pyrrhotite Chalcopyrite . Sphalerite Galena . 128 128 146 |
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| VOLUME 38 NUMBER 2 $15 Wayne & Dona Leicht, 875 North Pacific Coast Highway, Laguna Beach, CA 92651 (949)...Thirty-eight, Number Two Articles Pink fluorite from an exceptional find at Chumar Bakhoor, Pakistan . ....von Fl e collection; photo by Thomas Sch pbach. See the article on quartz gwindels in this issue. The...Connecticut (1968). He also mined localities in North Carolina for emerald and other 90 minerals (1970)...the ore mines of Peru where he acquired many imported specimens. In 1976 Kosnar published an article |
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| GOLD Top: The original Turin Papyrus of the Egyptian gold mine (circa 1320 B.C.), the oldest geological...Papyrus of the Egyptian gold mine (after Ball, 1942; see chapter 3). GOLD History and Genesis of Deposits...deposits. Includes bibliographies and index. 1. Gold ores. 2. Gold. I. Title. TN420.B63 1987 553.4'1 86-15675...GENERAL GEOCHEMISTRY OF GOLD AND TYPES OF AURIFEROUS DEPOSITS General Geochemistry of Gold / 11 Auriferous Deposits...CHAPTER 2: GOLD DURING THE PRE·CLASSICAL (PRIMITIVE) PERIOD (5000 o.c.-600 o.c.) . 23 Gold Deposits in |
