 | | 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 Au–Te–Sb–Tl 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...835 to 1000%. They are closely associated with goethite, siderite, unnamed Fe, Te, and Tl carbonates, |  | | 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) | | 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 |  | | Journal (issue) | | Western Tasmania, the Heazlewood district, and the Dundas district. The Dundas Ag-Zn-Pb mining field...10 km east of Zeehan, and contains a number of mines. Two of them are especially productive in terms...Pocket”, 10.1 cm high. Gobin specimen. Crystalline gold from Round Mtn, USA Read on page 7 R. Scott WERSCHKY...Tucson Gem and Mineral show, and seeing some new golds from a mine you have never heard of. They are leafy...leafy specimens with bright, shiny, yellow gold and hints of octahedral crystals on the edges. The specimens |  | | 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 |  | | Catalog/List | | NATURE & SCIENCE AUCTION DECEMBER 8, 2021 | DALLAS GOLDS, GEMS & FINE MINERALS Front Cover Lot: 72050 Inside...Monday, December 6 – Tuesday, December 7 | 10:00 AM – 5:00 PM CT View lots & auction results online at...LOT SETTLEMENT AND PICK-UP Available weekdays 9:00 AM – 5:00 PM CT starting Thursday, December 9 by appointment...featuring a boutique sale of incredible Golds – including the largest Gold nugget ever found in Alaska AND the...world’s largest single Gold crystal – all part of a great assortment of some 50 Gold specimens in nugget |  | | Journal (issue) | | However, if you have a special Afghanistan, Nuristan mines Arizona, Blue Ball mine Castle Dome dist. Fat Jack...mine Purple Passion mine Red Cloud mine Silver District Tonopah-Belmont mine Western Union mine Arkansas...mine Broken Hill mines Burra Burra mine Gold localities Kingsgate mines Moonta district Mount Bonnie mine...Island Tasmanian mines Wallaroo district Widgiemooltha Austria, Annaberg dist. Bleiberg mines Knappenwand...mine Silvana mine Van Silver mine Bulgaria, Madan mines California, Benitoite Gem mine Billie mine Blue |  | | Journal (article/letter/editorial) | | and the symposium is Gold. In the early years of the Tucson show, the price of gold was The Mineralogical...governmentally established at $35/troy ounce, and while gold no longer officially backed American currency, it...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) | | 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 |  | | 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 (article/letter/editorial) | | , 15, 29, 55. Quads: Richardsville ( 7 I / 2 ) (gold area) ; Warrenton (15), Catlett (15), Front Royal...Middleburgh, all (JY ) Min. Johnston Gold M. nr. Gold Vein (vil lage) . Gold panning on run S of Rte. 809 which...which leads off Rte. 615 from Rte. 17 nr Gold Vein P.O. At Gold Vein P.O. take Rte. 615 S for % Mi. to...Mr. Brickhill. Liberty Gold M. Take Rte. 651 W from Rte. 17 from point N of Gold Vein. Follow to town dump...View Gold M. Continue SW of road above from Liberty M / to 1 Mi. on N W side of road. Bancroft Gold M. |  | | Journal (issue) | | DeMouthe Famous mineral localities: The Magdalena district, Kelly, New Mexico .............................Hammond Famous mineral localities: The Hansonberg district, Bingham, New Mexico .............................57 by R. S. DeMark The New Mexico Bureau of Mines Mineral Museum ...................................covers not just the Kelly mine but the Mag dalena district as a whole. This is not to say, of course, that...contributed two articles, one on the Red Cloud mines (11, 69-72) (not to be confused with Arizona’s more |  | | Journal (issue) | | groups ever found, as well as albite, smoky quartz, goethite, fluorite, and many rare species at their various...and dealers. In 1972, he made a trip to the ore mines of Peru where he acquired many imported specimens...Dixie mine in Idaho Springs for leaf gold and crystallized gold in 1976, and that same year began importing...includes a fantastic suite of leaf and crystallized golds, fluorites, and rhodochrosites, as well as suites...suites of minerals from Mt. Antero, the ore mines of the San Juan Mts. and the Leadville area, amazonite |  | | Catalog/List | | Wine Harbor, Nova Scotia, Canada: from a for�er gold �ine, th�se are very_ bright _ arsenopyrite crystals...PSEUOOMORPHSAFTER ARAGON/TE!!! Coro Coro, La Pa:t District, Bolivia: Really interesting little critters from...TERMINATED DANBURITE CRYSTALS: Crystal Mayu, Chapare District, Cochabamba Province, Bolivia. Exceptional double...HEM/MORPH/TEANO CHRYSOCHOLLA: 79 Mine, Banner District, Gita County, Arizona: Another oldie, clear to...1 5.00 for over 6" specimens! SERPENTINE: Ropes Gold M i ne, lshpeming, Marquette County, Michigan: Nice |  | | Journal (issue) | | fact, they went on trying to locate the richest (gold T h e M in e r a lo g ic a l R e c o r d , v o lu...9 9 Figure 3. Location map showing important mines and towns in the Zambian Copperbelt, as well as...indigenes serving as guides. In 1915, the Kipushi district was delineated by the famous prospec tor Major...so until recent years. Production in the other mines of the southeastern sector was limited to small...as adamite. Associations include hemimorphite, goethite and quartz. Six speci mens were recovered from |  | | Journal (issue) | | to: 7413 N. Mowry Place Tucson, AZ 85741 Articles Gold in South Africa ..................................the summer. Initially he went underground in the mines in Mexico and collected as well as purchased material...itwatersrand P.O. Wits 2050 Johannesburg South Africa Gold has been mined in South Africa fo r over a century...from individual mines often exceeds other countries' entire national output. Notable gold specimens are...preserved. Large gold nuggets and crystal specimens have also been found in other gold producing regions | | | Journal (issue) | | 1992 Volume Twenty-three, Number Three ® Articles Gold in South Africa ..................................Mi11eralogical Record, ,·olume 23 , Ma.,·-June. 1992 GOLD IN SOUTH AFRICA Bruce Cairncross Department of Geology...Witwatersrand P.O. Wits 2050 Johannesburg South Africa Gold has been mined in South Africa for over a century...from individual mines often exceeds other countries' entire nationq,l output. Notable gold specimens are...preserved. Large gold nuggets and crystal specimens have also been found in other gold producing regions |  | | 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) | | 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...stibnite crystals as coming from the Yokohi antimony mines at Ichinokawa. Some other collections show a similar...The Bandora mine, in the famous Silverton mining district, is located in southwestern Colorado about 60 |  | | Journal (article/letter/editorial) | | process analogous to the bio-oxidation of refractory golds and expand the range of minerals that could be processed...(mostly associated with iron oxide phases, such as goethite) and cobalt (mostly associated with manganese...and the major iron phases consisted mainly of goethite (~60%) together with magnetite and hematite. The...sulfide minerals or the bio-oxidation of refractory gold ores is mediated by microbially metal-containing...sulfide minerals or the bio-oxidation of refractory gold ores is mediated by catalyzed oxidative dissolution |  | | Journal (issue) | | 264 St. James Collections Colorado School o f Mines Golden, CO 80401 303-273-3823 Mon-Sat 9-4, Sun 1-4...Articles Famous mineral localities: the Kingsgate mines ........................................ 265 by...reserved. FAMOUS MINERAL LOCALITIES: the Kingsgate Mines NEW SOUTH WALES, AUSTRALIA Brian M. England Broken...workings scattered over a relatively small area, the mines were originally worked for bismuth in the late 1800s...known facts concerning the history of the Kingsgate mines, as well as providing an up to date descrip tion |  | | Journal (issue) | | of the Walker Vein Central Kentucky Fluorspar District Alan Goldstein 1607 Washington Blvd. Louisville...area described as the Central Kentucky Fluorspar District (Anderson et al, 1982; Currier, 1923; Fohs, 1907...collectors. In brie f, the Ce ntral Kentucky Fluorspar District, which covers all or parts of 16 counties is a...found that the tiny brown specks had been cubes of goethite now mostly destroyed by the acid. Too bad, they...t. Un like the Illino is- Ke ntucky Fluorspar District (Goldstein, 1997), there are no significan t bedding |  | | Journal (issue) | | tgressman@comcast.n et The Musonoi mine, Kolwezi District, Lualaba Province, Democratic Republic of the...METATORBERNITE, 6.6 cm, from the Musonoi mine, Kolwezi District, Democratic Republic of the Congo. Scott Rudolph...for the Mineralogical Record: on the Port Radium District in the Northwest Territories (1989) and on the...as a mineralogist for the New Mexico Bureau of Mines and Mineral Resources (1988-1992). In August 1992...Jersey. Despite his 70 scientific papers on the district, including an extraordinary five-volume monograph |  | | 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...sulfarsenides or arsenide-sulfides. Assay. The analysis of gold and silver ore to determine its precious-metal content |  | | 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 Michigan’s famous Keweenaw...that issue with copper foil stamping (instead of gold foil) on the cover, and many of the pages were printed...by the Cliff, Central, Copper Falls and Phoenix mines. An 1874 article in the Detroit Free Press listed |
|
