 | | Report (volume) | | Minerals of Colorado: A 100- Year Record By EDWIN B. ECKEL GEOLOGICAL SURVEY BULLETIN 1 1 14 A...knowledge____________________________________ Future of Colorado mineralogy______________________________________...mineral localities and metallic mineral deposits of Colorado ________________________________ In pocket III...mineral localities and metallic mineral deposits of Colorado, has not been included in this reprint. Many of...especially Fischer and others, 1946). MINERALS OF COLORADO: A 100-YEAR RECORD By EDWIN B. EcKEL ABSTRACT |  | | Book (volume) | | amethyst (left, upper group) which measures about 25 mm (1 in.) across. TOP GROUP. Green fluorite (121...tourmaline (30.89 ct), Maine; round brilliant red-orange spessartine garnet (16.62 ct), Ramona, California;...(25.56 ct), Sweet Home Mine, Colorado; colorless scheelite (19.66 ct), Kern County, California; octagonal...Vivid blue matched benitoite gems from San Benito County, California, consisting of 52 benitoites and 75...gold. The necklace is 45 cm (18 in.) long. BOTTOM GROUP. Deep, spinel red oligoclase feldspar (5.04 ct) |  | | Book (volume) | | books and arucles for additional background reading round out this unique coverage of American gemstones....Canada Van Nostrand Reinhold Australia Pty. Ltd. 17 Queen Street Mitcham, Victoria 3132, Australia Van Nostrand... 5 = fii? i a j — » ya y _— ’* : i mine in. q)! Y eit iia -...customarily handled in the jewelry trade but not enjoying top rank. The enormous variety and wealth of locality...while the last chapter embraces substances such as pearl and amber which are of animal or vegetable origin |  | | Book | | authorHouse® Table of Contents Introduction Foreword * Colorado Gemstone-Aquamarine Vii Vili Fossil-Stegosaurus...Mammoth * Arizona Gemstone-Turquoise Mineral-Garnet Fossil-Eubrontes 26 27 * Delaware Mineral]-Sillimanite...Fossil-Belemnite Soil-Greenwich Loam Series 29 30 31 * District of Columbia Dinosaur-Capitalsaurus fo, Fossil-Petrified...Joaquin Series iii 4] * Idaho Gemstone-Star Garnet Fossil-Hagerman Horse 43 44 * Illinois Mineral-Fluorite...Kentucky Fossil-Brachiopod Gemstone-Freshwater Pearl Soil-Crider Series Mineral-Coal Rock-Agate * Maryland | | | Book (volume) | | amethyst (left, upper group) which measures about 25 mm (I in.) across. TOP GROUP. Green fluorite (121...tourmaline (30.89 et), Maine; round brilliant red-orange spessartine garnet ( 16.62 et), Ramona, California;...rhoColorado; eolorless scheelite (19.66 cc), Kern Cowny, California;...Vivid blue matched benitoite gems from Sai, Benito County, California, consisting of 52 benitoites and 75...gold. The necklace is 45 cm (18 in.) long. BOTTOM GROUP. Deep, spine! red oligoclase feldspar (5.04 et) |  | | Book (volume) | | instance, a single Spodumene crystal from the Etta Mine near Keystone on the east side of the Mount Rushmore...production of minerals, principally Gold, Silver, Copper, Iron, Lead, Manganese and Zinc, along with lesser...beds, excavations, etc.Selenite roses. BRULE COUNTY AREA: in the Oacoma zone of the Pierre Fm. On Elm...gray Barite rosette up to 5 or 6 inches. CAMPBELL COUNTY MOUND CITY, W to the Missouri R., regional hillsides...gravels, etc.petrified wood, wood opal. CORSON COUNTY LITTLE EAGLE: area ridges, slopes, stream beds |  | | Journal (issue) | | bore the hole through the center, and grind it round. First, I pick out the stone I want to make a pen...this set up is water fed. The blanks are ground round until they are only slightly larger than the bushings...with 100 grit, unless the stone is soft. The first round of sanding removes the ridges left by the diamond...diamond grinding wheel. Then I sand with 220 grit to round over the sharp corners at each end of the blank...long in clusters were mined at the Mashamba copper mine, in Zaire. When they were introduced at major |  | | Book (edition) | | Corporate Drive, Suite 400, Burlington MA 01803, USA First published 1962 Second edition 1970 Third edition...Chrysoberyl Spinel Topaz Tourmaline The Garnets Feldspar Group Zircon Peridot 69 92 117 150 167 171 175 185 195...book would be more sensibly shared out among a group of authors/gemmologists, each member tackling his...Canada, Germany, Thailand, Vietnam, the UK and the USA, making this a truly international collaboration...Edition being extracted from ‘Gems of the Silica Group’ to form a separate chapter. I have also reintroduced |  | | Book (edition) | | interesting facts about the people involved in mining, current price lists of various stones, and numerous...from the Tourmaline Q ueen .1ine, Pala, San Diego County, California. From a pen-and-ink drawing by W. E...'- NoSTRA.'-D Rrn,'HOLD AUSTRALIA PTY. LTD. 17 Queen Street Mitcham, Victoria 3132, Australia V.-\..'-...price increases, which make it more attractive to mine domestic deposits at a profit. Foreign labor is...information is included on the persons involved in mining the deposits, with dates and other pertinent information |  | | Journal (issue) | | 80 grit and water to turn it down to a perfect round. When this step was completed, everything was cleaned...20 inches long. In the center of the top board a 3 3 • -inch round hole was cut, and in the middle of the...setting A putty dam was made around the hole in the top board and filled with 220 grit and water. Drilling...break out the core, a piece at a time, leaving a round hole for the clock. Two ¼-inch holes must be drilled...paintings, in matching frames, were shown in a group of thirty-two, assembled on a large wooden rack |  | | Book (edition) | | McDonald Co\·er photo: \\ 7 ulfenite, Rowley Mine, Maricopa County, 4 cm high specimen, Evan and Melissa Jones...some species have been relegated to group names (e.g., monazite group); others have had element designations...the zeolite minerals, where chabazite is now a group name with five species who differ only in the major...International Mineralogical Association (IMA), changed to a group name, or renamed by changes in nomenclature as mineral...used mining districts as part of the locality description. These political and geographic district names |  | | Book | | of minerals -from the native elements (diamonds, copper, gold, silver, and sulfur) through sulfides, tellurides...cm (41/i in. ) high from Tourmaline Queen Mine, San Diego County, Pala, California. Back Cover: Azurite...Inquiries should be addressed to Abbeville Publishing Group, 488 Madison Avenue, New York, NY 10022. Printed...contajning a metal and an oxygen-bearing anionic group. For example, calcite is a forn1 of calcium carbonate...particularly valid in terms of monetary value. The "big four" are nonetheless the most popular and dominant |  | | Book (edition) | | Haliotis. abalone pearl. A colored pearl from the abalone. Usually a blister pearl pearl is found although...accidental pearl. Genuine natural pearl as distinguished from (artificially induced) cultured pearl. A term...the shell. “‘Adelaide ruby.’”’ Blood-red pyrope (garnet) from South Africa. adularescence (ad’-u-lar-es’-sence)...of sapphire, amethyst, emerald, ruby, topaz and garnet. Same as precious moonstone. See orthoclase...is better quality lapis lazuli from Badakshan district, of Afghanistan, or 2 DICTIONARY OF GEMS |  | | Report (issue) | | . . . . . . . . . . . . . . . . . 1 Chapter I. Mining Districts of Counties and the State of Utah. .... . . . . . . . . . . . . . . . . . . . . . . 1 County Listings. . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . 1 Chapter II. Mining Districts of Utah . . . . . . . . . . . . . . .... . . . . . . . 4 Mineral Localities Listed by County . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . 7 Beaver County . . . . . . . . . . . . . . . . . . . . . . . |  | | Book (volume) | | Street MELBOURNE: 473 Bourke Street RRISBANE: 240 Queen Street CANADA: BUTTERWORTH & CO. (CANADA) LTD...Other Feldspar Gemstones 10 Gems of the Silica Group including Amethyst, Agate and Opal 11 Turquoise...Coloured Stones 20 The Fashioning of Gemstones 21 Pearl—its Cultivation and Imitation 22 Coral, Shell...Peridot: Crystal and Cut Stones : 96 ‘ ; : Garnet: Crystal and Cut Stones of Pyrope, Hessonite, Demantoid...2 PREFACE For two decades, an earlier work of mine—Practical Gemmology—has proved a useful elementary |  | | Journal (issue) | | Jeffrey R. Hapeman, and Richard B. Berg Examines the mining history and geological characteristics of the three...FEATURES 72 Lab Notes Purple anhydrite • Pink pyrope garnet • Libyan Desert glass bangle • Atypical bead cultured...appearance • Heart-shaped golden South Sea cultured pearl • Gastropod shell in a shell blister • Ruby with...diamond • Starry night in diamond • Xenomorphic garnet in diamond • Arrow-patterned negative crystals...Double pseudomorph ikaite-calcite-opal • Cultured pearl market update • Edison pearls • Natural nacreous |  | | Journal (issue) | | ......... $3.65 EACH! Diameter Width Height A) ROUND BAR WITH HOLE 7/8" ................ -NA- ...................... 1 1/4" ......... 1 1/4" D) SOLID ROUND BAR 7/8" ................ -NA- ........... -NA1...Robert Beard Project: 28 Create a Sterling and Pearl Pendant Freshwater gems fit this silver frame like...G . 58 The Future of Leadville, Colorado A metal-mining district turns to tourism; by Steve Voynick...cut squares out of some very thin scraps of sheet copper to make shims for the thinner stones. Now all the |  | | Catalog/List | | resources of Montana, and the prevailing practice in mining and metallurgy”. $50.00 3. Allen, W.W. & R.B. Avery...materials. $30.00 6. Barton, D.B. ESSAYS IN CORNISH MINING HISTORY (2 Vol) Truro: Pub by author, 1968. 8...Very good. A collection of 12 essays on Cornish mining in two volumes. Includes the Cornish miner in fact...and Australian copper; mine names in the west of England; some characters in Cornish mining; arsenic production...west Cornwall, seven more. $50.00 7. Beard, J.T. MINE GASES AND EXPLOSIONS NY: John Wiley 1st ed, 1908 |  | | Journal (issue) | | cover: Top row, from left: Euclase, 2.3 cm, from the Gachalá mine, Guavió-Guatéque mining district, Boyacá...cm, from Stak Nala, Haramosh Mountains, Skardu district, Gilgit-Baltistan, Pakistan. Zach Goodman collection;...twin, 5.5 cm, from the Amo tin deposit, Ximeng County, Yunnan, China. Wally Mann collection; Joe Budd...Budd photo. Tanzanite, 7.6 cm, from the Merelani mine near Arusha, Tanzania. Barry & Beth Kitt collection;...2.2 cm, from the Pulsifer quarry, Androscoggin County, Maine. Kyle Kevorkian collection; Jordan Root |  | | Book | | tell-tale clues such as inclu¬ such as coral and pearl, most gems are sions or growth features. Further...5 Finger nail 5.5 Glass window 8 Topaz 3 Copper coin 6 Orthoclase feldspar 9 Corundum 4 Fluorite...right angles to each other. ISOMETRIC I / l h- garnet spinel (icositetrahedron) (octahedron) Three...(chatoyancy) or a star (asterism) when cut with a domed top (en cabochon). Cat’s-eyes can be seen when the light...almandine garnet although these may fade with time. can produce colour changes, A group including |  | | Book (edition) | | Physical Properties and Char acteristics ° culing Mining, and Cutting . i Fy 3 Ve, < $24.95 Can. $32...Changes in Color 32 Refraction of Light 36 _ 64 Mining Methods Cutting and Polishing of Gems 69 Engraving...Classifications 84 85 Value of Gemstones 126 Tourmaline Group Fire Opal 168 . | 85 Description of Gemstones...Tiger’s-Eye 140 Chalcedony 142 142 see 142 oo 120 Garnet Group ie ‘ 176 Zoisite Species Tanzanite 176 Prasiolite...Anyolite 176 : 178 Hematite . 178 Pyrite 180 Feldspar Group Amazonite Moonstone 180 180 Orthoclase 180 Labradorite |  | | Book (edition) | | Muineralogy of Arizona Stope in oxide ore, Copper Queen mine, Bisbee. These old workings were probably...his co-authors. A graduate of Michigan College of Mining and Technology (now Michigan Technological University)...a member of the faculty of Michigan College of Mining and Technology for three years, leaving that position...noted for computer applications in geology and mining engineering. The authors and publisher express...permission to reproduce the Map and Index of Arizona Mining Districts. Carleton B. Moore, Peter R. Busek, and | | | Book (edition) | | Mineralogy of Arizona Stope in oxide ore, Copper Queen tnine, Bisbee. These old workings were probably...his co-authors. A graduate of Michigan College of Mining and Technology (now Michigan Technological University)...a men1ber of the faculty of Michigan College of Mining and Technology for three years, leaving that position...noted for con1puter applications in geology and mining engineering. The authors and publisher express...permission to reproduce the Map and Index of Arizona Mining Districts. Carleton B. Moore, Peter R. Busek, and |  | | Journal (issue) | | visit www.gem-a.com Major sponsor Sponsor Image (top) courtesy of Business Design Centre. ™ Supporters...Andradite from Arizona, USA | Bobdownsite | Orange lizardite | Large quartz from Arkansas, USA | Gold-included...spessartine inclusion | Tourmaline from the Cruzeiro Mine, Brazil | Natural diamond showing a ‘synthetic’...Edward Boehm, RareSource, Chattanooga, Tennessee, USA; Alan T. Collins, King’s College London; John L....Emmett, Crystal Chemistry, Brush Prairie, Washington, USA; Emmanuel Fritsch, University of Nantes, France; |  | | Book (edition) | | Wulfenite. Red Cloud mine, Silver district, Trigo Mountains, La Paz County, Arizona. Smithsonian Institution...and Second Editions PART 2 HISTORY OF ARIZONA MINING The Prehistoric Period 20 Arizona Under Spanish...Porphyry Copper Deposits 57 Porphyry-Copper-Related and Other Hydrothermal Deposits The Bisbee District, Cochise...Cochise County 64 70 The Tombstone District, Cochise County The Mammoth-St. Anthony Mine, Tiger, Pinal...Pinal County Uranium and Vanadium Deposits 80 Monument Valley 81 63 78 il S: The Cameron Area 85 Breccia |
|
