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| Flatirons Facets Flatirons Mineral Club of Boulder County, Colorado Volume 66, Number 3 May-June 2023 Our...field trip of the year to the Edgar Experimental Mine in Idaho Springs. See the President’s Message on...we took our first trip to the Edgar Experimental Mine which the Colorado School of Mines runs in Idaho...perks for those involved in the industry. The Edgar Mine holds a special place in my heart as it brings back...mining summer class I attended in 1983, I obtained my Mine Safety and Health Administration underground certification |
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| 1nlorma11on dOCI requests 10 ine Ameucan Federation CALIFORNIA FEDERATION OF MINERALOGICAL SOCIETIES Otlicus...LAPIDARY EQUIPMENT P()\\ ERGLID E CO:\TROL PA:\EL ..--- I 16''-18'' • 20'' -24 '' • 36'' Slab Saws...secretary-treasurer of the those with common interests. California Federation). A major portion of the clubs in...Among the features is the most to the Yern10. California area. recent edition of the American Fcderaci...San Mateo Previouslv mentioned were the annual County. Federation · convention!> and shows; Third Row |
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| Major Tourmaline mines, and the Ouro Preto Topaz Mine Jeff Scovil Travels in Brazil John Saul The...Thomas Nagin Illuminations: Gemstones as Art Jonas Mine Tourmaline Discovery Hunting Colombian Emeralds...communities of Excavated ruins of the Tonglushan copper mine, Hubei Province, active from the 11th century B...species from a new location (such as a recently opened mine in China), even when the overall quality is the...Tsumeb material and presented on the famous Namibian mine at the 2015 Dallas Symposium. Cornish Mineral Legacy: |
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| pre-exsting space). Examples include crusts of quartz over cubes of fluorite or the siderite and pyrite...epimorph Lady’s slipper After barite, Virtuous Lady Mine Fig. 5 Copper after aragonite Fig..2 Goethite...conditions e.g contact with the atmosphere, rain or mine water, while further down is increasing low oxygen...offer a unique opportunity to see the large smoky quartz crystal found by James Grant in 1851, and presented...knowledge resulted in Chris being approached by the BBC to be a presenter on the two part programme ‘Expedition |
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| modifiedcrystalsin quartzdrusefrom RoundMountain (Nevada,USA).JurgenTron specimen. (Continues on page 2) The...ferro-axinite from Ne\\ Melones Dam (Calaveras Co .. California). This is an old, well-l-nown locality and as...good contrast. The most remarkable associate were quartz crystals, reasonably clear up to 15 cm long with...in crystal to 6-7 cm, overgrown by microscopic quartz (?) crystals from Los Picachos in San Benito Co...from Searles Lake, Trana, San Bernardino Co .. California. This is not frightfully surprising as these |
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| .................................... 17 DAOPING MINE Guanghua Liu and Berthold Ottens .................crystal, 2.1 cm, from the Dadongla (Yunchangping) mine near Tongren, Guizhou Province, China. Marcus Budil...Xikuangshan, the site of the world’s largest stibnite mine. Berthold Ottens is a German dealer and author of...today, near the ancient mine workings, there is a large open-pit copper mine which provides small calcite...1121 B.C. There in 1973 a 3,000-year-old copper mine with smelting facilities was discovered on Mt. Verdigris |
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| Reveals Largest Violet Diamond Recovered from Argyle Mine Gemology 32 18 21 26 Harvard Mineral Heritage...provenance of colored gemstones all the way to the mine that produce the stone. The vertically integrated...price. Confidence is increasingly InColor Bureau USA Claudiu Margarit claudiu@gemstone.org [1] (212) 620-0900...possible tied to transparency and provenance. from mine to market is being developed strongly. As a result...branding strategies are increasingly being related to mine sites, local towns or geographical areas. There |
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| but high quality smoky quartz. It is now an SSSI site but amongst the debris, quartz is easy to find without...afternoon visit to find the entrance to Wapping Mine (for our Monday itinerary). The entrance proved...May/June 2000 ' On Monday we visited the Wapping mine with a short pre-visit to Pike Lane open cut, unfortunately...walks without his feet touching the ground!). At the mine entrance the walkers were quickly transformed into...crawl over the lip, a quick twist and we were in the mine. Nice and dry with plenty of room and fluorite on |
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| The area has given its name to gem quality smoky quartz, and has also produced spectacular specimens... 44 JEWELLERY AND ARTEFACTS 148 Quartz 44 Beryl 68 QUARTZ AND WORLD WAR TWO 155 Topaz 75 EPILOGUE...famous gemstone, the distinctive, smoky amber-coloured cairngorm quartz (hereafter referred to as cairngorm)...explanation of the cause of colour in cairngorm quartz. A core strength of the book is an extensive section...who became engaged in early research on synthetic quartz to further the Second World War effort, and their |
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| CARLSBAD STORE: 2961 STATE STREET, CARLSBAD, CALIFORNIA July 1973 - No. 430 OFFICIAL MAGAZINI AMERICAN...MANAGING EDITOR ART/ ADVERTISING DIRECTOR - CALIFORNIA FEDERATION ASSOCIATE EDITOR - OF CIRCULATION...Corraapondenca and requests for Information to the California Federation ahould be addre11ed to: Mra. Juanita...OF MINERALOGICAL SOClmES CONTENTS: FEATURES California Camper Owner• Beware ..........................Convention and Show. " Garnel Star of Idaho." Nez Perce County Fairgrounds, Lewiston, Idaho. Host. Helli Canyon |
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| Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...collection to Colorado mineral dealer Bryan Lees, California dealer Wayne Leicht and British dealer Ian Bruce...Mexico and subsequently transferred to Menlo Park, California, where he was a hydrologist/geologist for almost...stockbroker. Bill was a member of the Northern California Geological Society, the Geological Society of...where he received his PhD. John Watson Fallbrook, California The Mineralogical Record, volume 37, November–December |
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| .......................... Trial at Brandy Gill Mine ... ..............................................Posnjakite, connellite and other minerals from Crinnis Mine, Cornwall Meeting & Field Trip Reports ...........has benefited from the dataset, principally of old mine sites, put together for the earlier study of Bevins...For two of the GCR sites (Machen Quarry, Mwyndy Mine), the current project was asked to propose RIGS...amounts and distribution. These minerals include quartz ("Merthyr diamonds"), calcite, baryte, dickite |
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| BROADCASTING CORPORATION . This book accompanies the BBC Further Education Television programmes On the Rocks...of programmes prepared in consultation with the BBC Further Education Advisory Council This book is...use all over the world, have come from an English county (Devon) and two ancient Welsh tribes (the Silures...accessible, that this book has been written and the BBC Television series of the same name, (for which it...at low temperatures in the presence of water, 1s quartz (chemical formula Si0,-silica). The initial shattering |
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| Obituary Michael (Mike) Peel Bayley Hemerdon Ball Mine update 16 24 27 31 OFFICERS - CONTACT DETAILS...at Easter to join the Northern Mine Research Society for a week of mine exploration, sight-seeing and...thread-like crystals of millerite, and colourless quartz. Beryl Taylor specimen. Steve Rust photo. ©Steve...technique 20 1 2. I felt my anatase floating in quartz from Cwmorthin in an aluminium foil lined box took...impressive - for example with single crystals of quartz where a little bit of light inside the crystal |
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| Feather Lakes Mineral Smorgasbord Enchanted by Quartz and Amethyst Mark Leatherman 50 Evolution of a..................53 60 Gems and Minerals of Post Mine Closures The Maine (Part I) Popularity of Bisbee...Jocinto Neto specimen.” - Rock H. Currier Topaz Xanda Mine, Virgem da Lapa, Minas Gerais, Brazil Overall Measurements:...own our home and ive acres of land in northern California, and we have lived here for 33 years. About ten...petriied wood. I shared this with an old friend of mine who belonged to the Shasta Gem and Mineral Society |
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| Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...common throughout the district. The Minerva No. 1 mine near Cave-inRock has been the premier specimen producer...calcite specimens from a new pocket in the Minerva mine. Associated with the calcites are 1 to 2-mm white...published studies specific to the Minerva No. 1 mine, but Lillie (1988) gives a lucid explanation of...makes frequent reference to Minerva mine minerals. The Minerva No. 1 mine, located in the NW '/4 of the SE |
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| Stevenson. This was a veritable mine of of inif one can have a mine for pearls. When formation - if I...found England's climate chilly, with London wet and smoky, and was in poor health. John Rolfe was appointed...Wednesday, 3 May 1989, at 11.00 hours, Long Wave, the BBC broadcast an excellent programme on Radio 4. It was...1991,22, 6 334 Gem thaumasite from the Black Rock Mine, South South Mrica Africa Ulrich Henn, Markus...associated with sulfidic ores (e.g. Sweden, Tennessee/USA), 2. in cavities of of basic effusive effusive rocks |
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| to summarize the latest ideas on their origin. Quartz nodules from the Mendips have been given different...'diamonds' were subsequently correctly identified as quartz, but the controversy surrounding the nodules merely...I and 2). Some are composed of medium to large quartz crystals with an inner layer of much smaller grains...while others consist of fibrous quartz with or without prismatic quartz. Both types of nodules are found...found with internal voids or with cores of quartz, calcite or celestine. Recent work on the structures and |
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| in Moldavite from ‘Mercedes-Star’ Chlum, Czech Quartz Republic Cause of Colour and Dichroism in Laurentthomasite... Madagascar | Sphalerite from Balmat, New York, USA | Tourmaline from Calabar, Nigeria | Sapphire Coloured...Asterism in ‘Mercedes-Star’ Moldavite from Chlum, Czec Quartz h Republic / No. 7 / 2023 Cause of Colour in...Enigma of the Unusual Asterism in ‘Mercedes-Star’ Quartz 678 By Jean-Pierre Gauthier, Emmanuel Fritsch...Alonso-Perez Harvard University, Cambridge, Massachusetts, USA Alan D. Hart Gem-A, London Karl Schmetzer Petershausen |
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| 5–16 mineral deposition in a cavity in Smallcleugh mine, Nenthead, Cumbria Trevor F. Bridges and Roy Starkey...development of a mineralised cavity at the Smallcleugh Mine in the North Pennine Orefield, where Trevor focused...we were walking down from Copa Hill at Cwmystwyth mine in mid-wales. we had both been participants on one...Competition, with a group of clear quartz crystals from brownley Hill mine, and Journal of the Russell Society...“micromount” category, with a baryte from tear breeches mine, matlock bath. at this time, the Society was also |
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| Croydon-based Microsoft consultancy. One of his clients was BBC News where Jolyon spent much o f his time with Windows...during highway construction, Hull Township, Gatineau County, Quebec. P. M. Bellev, R. Rowe & M. Picard. 2:45...e " from the Harder Farm, Hammond, St. Lawrence County, NY. M. Lupulescu. 3:45 H i s t o r y of the Powers...Powers farm streamside veins, St. Lawrence County, New York. M. R. Walter & S. C. Chamberlain. 4:00 M...assemblage from the Allah Cooper/Valcooper mine, Louisa County, Virginia. L. E. Kearns & M. D. Dunn. 4:30 |
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| the mixed vegetable dish left over inside a tra,·el coffee mug. using the hot water from the last night's...bit of the old Shigar <;tomach trouble from the USA and maybe not being allowed to go beyond this blues...descriptive mineralogy. Just $45 plus $8.50 s/h USA Minerals and their Localities Over 800 pages, 8500...reference book available today! $145 plus $15 s/h USA Foreign customers: please inquire. Excalibur Mineral...Euro, and the US dollar and Pakistani Teston to mine aquas then ranled off a bunch of quick rupee exchange |
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| Fluorescence | New Finds at the Tourmaline King Mine, Pala, California, USA | A New Amber Imitation: Amber-Epoxy...Cambridge, Massachusetts, USA Edward Boehm RareSource, Chattanooga, Tennessee, USA Maggie Campbell Pedersen...Emmett Crystal Chemistry, Brush Prairie, Washington, USA Emmanuel Fritsch University of Nantes, France Alan...Johnson Mary Johnson Consulting, San Diego, California, USA Stefanos Karampelas Laboratoire Français de...Shigley Gemological Institute of America, Carlsbad, California Christopher P. Smith American Gemological Laboratories |
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| beneath tall dripping shafts. These in the Golconda Mine lie in a pool within a flowstone cascade in a section...village of Bircotes, 15 km south of Doncaster. This mine was mothballed 20 months previously, with ‘geological...an investment decision to re-open the mine. The last new mine to open was at Asfordby in Leicestershire...are filled with minerals that include calcite, quartz and feldspars and widespread zeolites. These are...stratiform pipe deposits (Ford, 2001). Power sites for mine pumping to exploit the mineralisation are found |
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| France, and Morocco 127 1985 - Bedford United Mine 140 1986 - 1989 More Foreign Travel 154 1990...Spain and More 192 2000 - 2009 Africa and the USA 256 2010 - 2020 More lime with Minerals and Shows...David Lloyd laddering down a shaft at Bedford United Mine, Devon. Introduction I was born in Bristol on...Tungsten Mine, at Plympton, Devon, followed by an attempt to rework the famous Tsumeb Mine in Namibia...inform me that a new mineral species from the Tsumeb Mine in Namibia was to be named after me. This came as |
BBC Mine, El Dorado County, California, USA