 | | 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...impurity. The second type is represented by mustard gold of two types with different internal structure: |
 | | Journal (issue) |
| to celebrate the mineralogical heritage of the region. Visitors can enjoy both the Conference and the...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 |
 | | Journal (article/letter/editorial) |
| focus. There have been individual species such as gold and azurite and geographical areas such as Africa...specimen, Jeff Scovil photo. Figure 1. Fluorite and quartz, 4.6 cm high, Chamonix, Mont Blanc Massif, Haute-Savoie...Scovil photo. 10 ROCKS & MINERALS Figure 3. Smoky quartz gwindel, 8.2 cm high, Argentière, Chamonix, Mont...Cornish and German mines; silver from Kongsberg, Norway, and various German and Czech Republic districts; French...University. Bulgaria and Kosova; Swiss and Austrian quartz, fluorite, and adularia; Austrian epidote and beryl |
 | | Report (issue) |
| Bahunde, Masisi Territory, North Kivu, Democratic Republic of Congo. This is not too bad a match for the...Daoping mine, Guilin, Guangxi Zhuang Autonomous Region, China. These are loose, flowerlike, cyclic clusters...you will find that the Daoping and Yangshuo lead mines are accessed from opposite sides of the same mountain...Daoping mine, Guilin, Guangxi Zhuang Autonomous Region, China. Weinrich Minerals specimen and photo. ...from June 21 to June 27, since the Ste.-Marie-aux-Mines Show has already been cancelled for 2021. Meanwhile |
 | | Catalog/List |
| NATURE & SCIENCE AUCTION DECEMBER 8, 2021 | DALLAS GOLDS, GEMS & FINE MINERALS Front Cover Lot: 72050 Inside...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...grouping of Gemstones from all over the world, like the Gold and various other unique items, the first session...something special. The amount and variety of significant Gold in this sale are unparalleled, with spectacular |
 | | Journal (article/letter/editorial) |
| Geology Auburn University Auburn, Alabama 36849-5305 GOLD! Downloaded by [Stockholm University Library] at...STANDPOINT it may be more difficult to acquire a good gold specimen than any other generally familiar, readily...literature abounds with papers dealing in all aspects of gold geology, metallurgy, mining, and utilization; those...those interested in delving deeper into gold should consider the excellent historical and geological summary...Mineralogical Record issues devoted to gold (vol. 13, no. 6; vol. 18, no. 1). Gold is, if nothing else, distinctly |
 | | Journal (issue) |
| Hanska Stiavnica (Schemnitz, Selmecbanya), Slovak Republic .......... ........................... 254 by...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...mineral room wall. And in 2016 we began presenting gold medallions-large pins with a magnetic clasp--that...IHI1IJNGA1llY. Figure 1. "Internal view of the silver mines near Schemnitz, in Hungary" published by C. Brightly |
 | | 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 (issue) |
| Numerous minor actors in this drama had their own gem mines to exploit. This history recounts these tales from...Black’s case of meteorites entitled “Worth More than Gold”. The case provided historical details about each...grams is worth the same as its equivalent weight in gold. The L’Aigle chondrite meteorite of 1803 from France...grams, is worth 10 times its equivalent weight in gold. Figure 1. A slice of the Imilac pallasite from...cases with the theme of documenting the origin of gold in the ground, its historical extraction and processing |
 | | 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 (article/letter/editorial) |
| 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)...notably Krantz, were the important sources of Russian gold specimens for American collectors. Leibov is frank |
 | | 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...proliferation is ideal. It has done wonders for quartz, beryl, and corundum. Emerald, aquamarine, and |
 | | Journal (article/letter/editorial) |
| SPECIMENS OF NATIVE SCOTTISH GOLD. III.—Museum Specimens of Native Scottish Gold. By W. LINDSAY, M.D., F...account of the various samples of Scotch gold and gold quartz, which are to be found in our national and...representa tion in our public museums of the golds and gold-rocks of Scot land; and a third* reason is...attaching to a comparison of genuine Scotch golds or gold-rocks with those of other auriferous countries...visited New Zealand—at the time of the outbreak of the gold fever of that fine colony.f On my return home in |
 | | Catalog/List |
| Internet, Fax, and Mail) Heritage Auctions Design District Annex 1518 Slocum Street • Dallas, TX 75207 Sunday...52001-52306 LOT VIEWING Heritage Auctions Design District Annex 1518 Slocum Street • Dallas, TX 75207 Wednesday...exceptional aesthetics, color, and composition. • Native Golds from over a hundred years ago and from the present...minimum. The specimen was collected in the Iron mines on the Island of Elba, possibly around 1790, where...1 Mine, Inca de Oro, Chañaral Province, Atacama Region, Chile Terry Szenics has been a tireless digger |
 | | Journal (issue) |
| The Musonoi mine, Kolwezi District, Lualaba Province, Democratic Republic of the Congo ................cm, from the Musonoi mine, Kolwezi District, Democratic Republic of the Congo. Scott Rudolph collection;...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 |
 | | Journal (article/letter/editorial) |
| known for a single discovery of large masses of gold and tellurobismuthite (“tetradymite”), virtually...important with respect to value, if nothing else. Gold specimens touted to be from localities that were...to late-1800s things began to change. Attractive gold specimens became increasingly available from a wide...wide variety of California localities. Colorado mines began to produce fine specimens as did those in...localities that produced good coarse gold. Entire collections focusing on gold were assembled by wealthy collectors |
 | | Journal (article/letter/editorial) |
| at 05:28 13 April 2015 Gold from GEORGIA Figure 1. A rare crystallized gold specimen from the Loud...lthough famous for its historical gold production, Georgia has few gold specimens with acceptable attribution...today. These specimens occur as nuggets or masses of gold ROCKS & MINERALS JULIAN C. GRAY Tellus Science...placer and saprolite deposits and as visible gold in quartz mined from lode deposits. Crystals are rare...have produced the occasional excellent gold crystal. Georgia gold deposits are restricted to the crystalline |
 | | Catalog/List |
| Design District Showroom 1518 Slocum Street • Dallas, TX 75207 Heritage Auctions Design District Showroom...Argentinian locality • A spectacular Australian Gold nugget shaped like a “Lightning Bolt” weighing nearly...August 18, 2018 | 11:00 AM CT 7 Minerals 72001 Quartz var. Chalcedony Mamuju, Sulawesi Barat Province...Sulawesi (Celebes) Indonesia The Chalcedony variety of Quartz has been referred to as “Grape Agate” since it...x 6.33 x 5.83 cm) Estimate: $700-$1,000 72002 Quartz var. Chalcedony Mamuju, Sulawesi Barat Province |
 | | Journal (issue) |
| feet tall. Venezuelan Golds Johannes Kentmann’s mineral cabinet, 1565. Placer gold has been recovered...recovered from the Gran Sabana gold field in the Guyana Highlands of Venezuela, about 40 km from the town of Santa... large and sharp crystals and crystal groups of gold. Specimens reached the American mineral market sporadically...indicated that what appeared to be single crystals of gold were actually polycrystalline aggregates— just what...thin skin, show what appears to be polycrystalline gold. However, when the interior of a crystal is probed |
 | | Catalog/List |
| Signature® Auction #5324 Nature & Science Gemstones, Golds & Fine Minerals November 4, 2017 | Dallas Signature®...Design District Showroom 1518 Slocum Street • Dallas, TX 75207 Heritage Auctions Design District Showroom...Friday, November 3 10:00 AM – 5:00 PM CT Gemstones, Golds & Fine Minerals Saturday, November 4 • 3:00 PM CT...catalog includes colorful Gemstones, magniicent Golds and Fine Mineral specimens. The book has been designed...Gemstones and Fine Minerals grouped by color and Golds grouped by locality – in alphabetical order. The |
 | | Journal (issue) |
| (deceased) Peter L. Via (deceased) SENIOR FELLOWS Gold Level Scott A. Rudolph (2022) Gail & Jim Spann...for the Discerning Collector Imperial Topaz in Quartz Pocket - Ouro Preto, Brazil Dallas, Texas and Guilin...of the English Lake District that is now within the borders of the Lake District National Park. The nearest...built specifically to process the ores from local mines. Figure 2. Hugh Lee Pattinson (1796– 1858) patented...meters. The largest of these faults is occupied by a quartz-ankerite vein, here called the “Brandy Gill vein |
 | | Journal (issue) |
| Mandarino Famous mineral localities: The Annaberg District, Lower A u stria ...............................occurring in granitic pegmatite and polymetallic quartz vein set tings. It is commonly associated with...Diligent examination of polymetallic hydrothermal quartz veins containing copper, bismuth and vanadium and...several milli meters in diameter in vugs within the quartz matrix. Morass Creek Gorge, Australia Birch et...crystals and as delicate “bow-ties” perched in quartz cavities. Its color is very dark green grading |
 | | Catalog/List |
| Internet, Fax, and Mail) Heritage Auctions Design District Showroom 1518 Slocum Street • Dallas, TX 75207...17656. LOT VIEWING Heritage Auctions Design District Showroom 1518 Slocum Street • Dallas, TX 75207...Native Copper specimen • A beautiful Crystallized Gold from the “16-to-1” Mine • A huge cut and polished...Meteorite Slice Iron - IAB Complex Novosibirsk Region, Russia - (54° 20’N, 84°12’E) The find of the Maslyanino...Meteorite occurred on May 25, 1992 in the Novosibirsk Region of Russia, when an agronomist discovered a 26 kg |
 | | Journal (issue) |
| Diamonds in Colorado! The State Line Kimberlite District, Colorado & Wyoming, USA By Philip Persson, PerssonRareMinerals...21 Page 38 Page Precious Elements Diamonds, Gold, Silver, Platinum By Van King, newryqs@gmail.com...Mineralogy and History of Silver Deposits in the Calico District, California By Jeremy Zolan, jzolansci@gmail.com...Guided Tour Best Minerals - Diamond, Platinum, Gold and Silver Mindat is a free worldwide technical... Diamonds in Colorado! The State Line Kimberlite District, Colorado & Wyoming, USA Philip Persson, PerssonRareMinerals |
 | | Journal (issue) |
| all were created from the mineral-rich ore that mines removed from the earth and later processed into...I would roam Central Park thinking we had found gold impregnated into some incredibly hard rock that...PhD, who patiently explained that we hadn’t found gold, but one of thousands of mineral specimens found...also invited to visit quarries and numerous mines in the region, gaining an appreciation for the effort and...trips, 4 were out of our region and drew 12 members. The other 8 trips, in region, drew 174 attendees. Thank |
