 | | 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 |  | | Book | | 000007 0000Âź* The Worldâs Finest W MV >1VL an a CRYSTALS by Peter Bancroft A Studio Book THE...FRANCE; Curator, School of Mines, Paris ^ F* HOFMANN, Professor, School of Mines, Freiberg, east Germany...j. schubnel, Pro fessor and author, School of Mines, Paris, FRANCE ^ JOHN sinkankas, author and collector...unique ex perience; for the first time he can enjoy an array of seventy-eight specimens each judged best...In the Gallery these seventy-six are presented in an order calculated to delight the eye rather than merely | | | Book | | FRANCE; Curator, School of Mines, Paris 4 F. HOFMANN, Professor, School of Mines, Freiberg, EAST GERMANY...H. J. SCHUBNEL, Professor and author, School of Mines, Paris, FRANCE „& JOHN SINKANKAS, author and collector...unique experience; for the first time he can enjoy an array of seventy-eight specimens each judged best...In the Gallery these seventy-six are presented in an order calculated to delight the eye rather than merely...epidote are omitted, how is it possible to select two golds, two silvers, two rhodochrosites, and two siderites |  | | Journal (article/letter/editorial) | | Exhibited by ROLAXD U. DIXON. 3. Designs of the Golds of the Amoor River. From tlie col2. lections of...Books. 6. Periodicals. 4. Estimation of Growth by an Automatic Balance ; photographs. Exhibited by Professor...automatic cupel niacliiiic making GOO perfect cupels an hour. Zeiss binocular microscope according to Grecnough...The Queen-Le Chntelier pyrometer. c: An ioo,ooo-ohm box. d. An Ayrton shunt box. c. A new DâArsonval...Mining District, Colorado. f. Mother Lodc Mining District,, California. f Tenmile Mining District, Colorado |  | | 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 (article/letter/editorial) | | I An American Downloaded by [University of Saskatchewan Library] at 01:08 08 January 2015 P CARL A....02138 francis@eps.harvard.edu I e ee on Russian Gold 0 0 Slls All photos by Jeff Scovil of specimens...the gold mining districts of Russia, the history of their discovery, their geology, and their gold production...American collectors have ever had to study Russian gold specimens. What is their actual experience of seeing...Russian gold are much better in Europe than in North America. The impressive nuggets of gold (and platinum) |  | | 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 |  | | 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 |  | | Journal (article/letter/editorial) | | Characteristics of Supergene Gold of Karst Cavities of the Khokhoy Gold Ore Field (Aldan Shield, East... Abstract: Typomorphic features of supergene gold in karst cavities were studied in the recently discovered...discovered AuâTeâSbâTl deposit within the Khokhoy gold ore field of the Aldan-Stanovoy auriferous province...supergene gold, massive and porous, are recognized there. The first type is represented by gold crystals...impurity. The second type is represented by mustard gold of two types with different internal structure: |  | | 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) | | Rosenzweig IN SID E FRO NT COVER: Richard W . Thomssen Gold from the St. Josefs mine, Verespatak, Romania (left)...from the including photocopying âwithout emerald mines on the written permission from the Takowaja River...Ekaterinberg; prohibited. Individual photographers an aquamarine crystal (lower left) or their supporting..........................................3 9 Fersm an M ineralogical M useum Moscow, U SSR ..............much as they did a century ago. The facilities o f an old museum may be every bit as intriguing as the |  | 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, |  | | 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) | | 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) | | 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 |  | | 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) | | locality-oriented studies (all laudable scientific goals), with an emphatic note about the value of publication. They...and maintain a large mineral collection. Given such an investment, is it not a corresponding responsibility...CDâs and DVDâs, and photographs on the Internet. An extra advantage is that depiction in a publication...conveyed in the accompanying text than will fit on an exhibit label, thus the result is much more educational...species. In those days, that was the essence of being an âamateur mineralogistâ rather than just a mineral |  | | Report (issue) | | dealership of MCh Minerals (mchminerals.com) has an October 2019 posting which features nine resplendent...15 of these specimens to the 2019 Ste.-Marie-aux-Mines Show in June, and maybe a dozen dealers had the...white to colorless grossular in clayfilled pockets in an outcrop of serpentine near the W.L. Stifle Claim...past decadeâ from the Sounion mines in the southern part of the district. The specimens are crusts of...$2,000). Smithsonite, 11.5 cm, from the Sounion mines, Laurium, Attika, Greece. Greek Rocks specimen and |  | | Journal (issue) | | Size: 13 cm . P h o to b y H a ro ld a n d E rica V an P elt, L os A n g e le s. O u r co v er p h o to...responsibilities are: (a) an obligation to define the terms used for such specimens, (b) an obligation to see...institutional repositories to safeguard it, and, (c) an obligation to educate collectors, dealers, and scientists...ost im portant specimens in the science. That is an unqualified assertion, and a critical one. Type specimens...and unconditionally reserved for science. This is an easy way for everyone to make a very positive contribution |  | | 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 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) | | .3 by W. E. Wilson The Keweenaw County Fissure Mines...................................................(deceased) Peter L. Via (deceased) SENIOR FELLOWS Gold Level Scott A. Rudolph (2021) Gail & Jim Spann...presents a well-illustrated overview of the copper mines, minerals and history of Michiganâs famous Keweenaw...stamping (instead of gold foil) on the cover, and many of the pages were printed in an extra colorâmetallic...the Cliff, Central, Copper Falls and Phoenix mines. An 1874 article in the Detroit Free Press listed | | | 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 |  | | Journal (article/letter/editorial) | | photographed by Jeff Scovil MAGMA Mine Pioneer District, Superior, Pinal County, Arizona LES PRESMYK ...mine has been the principal mine in the Pioneer district and the main employer in this community since...Post Mountain on the right and, a bit further east, an imposing escarpment known as the Apache Leap. The...concurrent with the Silver King mine and the earliest mines in Globe and Morenci. The productive history of...surface to access the underground workings. Tunnel: An underground, horizontal passageway open to the surface |
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