 | | Report (volume) | | persons. The most popular gem cuts are the cabochon, rose, brilliant, step, and mixed. The carat, one-fifth...the ruby, sapphire, spinel, emerald, rutile, and quartz of gem quality have been synthesized. The best... transparent stones. The desired hues are blue, rose, green, and true canary yellow in the diamond; pigeon-blood...Fluorite Apatite . 6. 7. 8. 9. 10. Orthoclase Quartz Topaz Corundum Diamond The numbers preceding each...of silica (quartz, 7 on Moh's scale) particles, a gem stone should be harder than quartz. Some minerals |  | | Book (edition) | | gem stones mon dull are as hard or harder than quartz, a com- mineral everywhere present as dust which...Hardness Scale 6. Orthoclase 1. Talc 2. Gypsum 7. Quartz Topaz Corundum 10. Diamond 3. Colcite 8. 4...Your will scratch orthoclase feldspar but not quartz. In making hardness appears to be a scratch paper...the general arrange- ment of these surfaces. Quartz and amethyst, for example, are frequently crystallized...SPODUMENE DANBURITE DATOLITE GARNET FLUORITE QUARTZ CRYSTALS SPINEL STAUROLITE •^^ VESUVIANITE |  | | Report (issue) | | of The Geological Society of America Boulder, Colorado, 1973 Edited by BRUCE F. CurTIS 1975 Copyright...SOCIETY OF AMERICA, INC. 3300 Penrose Place Boulder, Colorado 80301 24 AUG 1990 The Memoir series was originally...northwestern Colorado and its implications concerning tectonism and the origin of the Colorado River system...Cenozoic sedimentation and deformation in northern Colorado and AGIOS ATCAGws jaceeet ty pes wien ano os Kar...helt 249 Neogene tectonism in south-central Colorado... a 2) 7 min 4 am ie a - =a, geek @a |  | | Book (volume) | | ...........................................59 Colorado ...............................................................548 Table of Maps Page Alabama County Map ...................................................................................4 Alaska County and Stream Map ..................................Co. Mining Districts ............................................................22 Arizona County Map.........................23 Arizona – Cochise Co. Mining Districts .................................... |  | | Book (edition) | | -- ~~~~~~~ ~ By the Same Author: Colorful Colorado: Its Dramatic History: " . . . a remarkable feat...illustrated and cheaper than formal histories of Colorado. • • • The Unsinkable Mrs. Brown was a delightful...Post. Famous Aspen: "It's all here ... Aspenites should he grateful." Luke Short in The Aspen Times. Silver...in the Rocky Mountain. News. Six R~cy Madams of Colorado: delightful booklet is written b oth with good...regardless of your age." Rene Coquoz in The Chaffee County R.epublican. Trail Ridge Country: ''This may rank |  | | Book (edition) | | —Roadside Geology Series $14.00 RCMDSIDE EOLOGY of COLORADO Halka Chronic MAP SYMBOLS SEDIMENTARY ROCKS...gneiss Q. Gneiss & schist roadside geology of Colorado Halka Chronic MOUNTAIN PRESS PUBLISHING CO. Missoula...Roadside Geology of Colorado Bibliography: p. 1. Geology—Colorado—Guide-books. Colorado. I. Title. QE91.C49...and the rugged volcanic regions of southwestern Colorado are geologi¬ cally and scenically different from...This book is designed to give to Coloradoans and Colorado visitors - especially those with little or no |  | | Book (edition) | | plutonic suite granite OADSIDE “%_ JrEoLocy of COLORADO SECOND EDITION Halka Chronic and Felicie Williams...ion Data Chronic, Halka. Roadside geology of Colorado.—2nd ed. /Halka Chronic and Felicie Williams....0-87842-447-4 (pbk. : alk. paper) 1. Geology—Colorado. 2. Roads—Colorado. I. Williams, Felicie, 1953- II. Title...NEW os °° of and Roads Geology Roadside of Colorado. sections =: S S Can Black Durango NP Verde...History—The Underlying Theme Comingto Terms 4 4 Colorado through the Ages 9 The Final Touch = 17 Gold |  | | Book (volume) | | ...........................................47 Colorado ..............................................................................458 Appendix B - Quartz Family Gemstones ................................rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...includes granites, schists (mica, garnet, graphite, quartz), and gneisses, as well as numerous granite pegmatites...gemmy qualities for cutting and polishing. AUTAUGA COUNTY PRATTVILLE, N. 6 mi., and just E of the Birmingham |  | | Book (volume) | | ...........................................47 Colorado ..............................................................................460 Appendix B - Quartz Family Gemstones ................................rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...includes granites, schists (mica, garnet, graphite, quartz), and gneisses, as well as numerous granite pegmatites...gemmy qualities for cutting and polishing. AUTAUGA COUNTY PRATTVILLE, N. 6 mi., and just E of the Birmingham |  | | Report (issue) | | Series 30 Bibliography and Index of Colorado Geology, 1984-1989 Colorado Geological Survey Department of...Resources Denver, Colorado 1990 Information Series 30 Bibliography and Index of Colorado Geology, 1984-1989...Institute under contract to the Colorado Geological Survey Colorado Geological Survey Department of...of Natural Resources Denver, Colorado 1990 ii FOREWORD In recognition of the need to more effectively...published literature on the state's geology, the Colorado Geological Survey is pleased to release Information |  | | Book | | stumble over a valuable nugget and stake your own mining claim? Indeed it to is, and author book Jay...prospecting, he points out, is in abandoned mining districts, where valuable mineral ores are present...commercial ores and secondary minerals by state, county, township, and geologic range. For easy identification...RANSOM 1875-1948 An to the Eastern '‘Schoolmarm” Mining Camps of the Old West I I a s I \ h K... CONTENTS Preface ix PART I 1 Introduction to Mining and Mineralogy 2 Preparation for Mineral Collecting |  | | Report (volume) | | ............................................. Colorado........................................................................................ 102 District of Columbia ....................................to refer to Geological Survey Bulletin 507, "The mining districts of the western United States," and to...exhausted by mining or quarrying. Deposits of minerals that are widely distributed, such as quartz and calcite...because they occur in sufficient quantity to warrant mining for their usual products, but because they furnish |  | | Report (volume) | | it helpful to refer to Survey Bulletin 507, "The mining districts of the western United States," and to...exhausted by mining or quarrying. Deposits of minerals of wide distribution, such as quartz and calcite...because they occur in sufficient quantity to warrant mining for their usual products but because they furnish...A. F. Rogers, Stanford University, Palo Alto. Colorado.........Prof. R. D. George, Boulder. Connecticut...See Bauxite and Hallpysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found |  | | 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 |  | | Report (issue) | | . . ALAMANCE COUNTY 5 5 Pyrophyllite ...... f .......... 5 ALEXANDER COUNTY .................Rutile and Rutilated Quartz. ... 9 Rutile, Xenotims and Monagite. ........ 9 Smoky Quartz, Goethite and Graphite... 9 ALLEGHANI COUNTY 1± Manganese ....... f 11 Barite , 11 Copper . 11 ASHE COUNTY. . . . Copper...Staurolite AVERY COUNTY . . ......... 13 13 13 . 13 Iron and Epidote BUNCOMBE COUNTY Garnet ...........13 Moonstone and Associated Minerals 15 BURKE COUNTY 15 Corundijin 15 Itacolumite 15 Toiirmaline |  | | Book | | Catalog Card Number: 74-1276 The pictures of gold-in-quartz, smithsonite, stilbite, and wulfenite on the front...learn that gravel beds are rich in such minerals as quartz, feldspar, mica, garnet, tourmaline, magnetite...Schists often contain feldspar, garnet, mica and quartz. With sapphires are often found associated an abundance...oxide. Chalcedony, one of the common varieties of quartz, was formed in the same way. Pegmatites and Hematites...contains as its principal com¬ ponents feldspar, quartz and mica it is known as pegmatite. Most of our |  | | Book (volume) | | Most specimen collecting is done in the Lead-Zinc mining dists. of northwestern Illinois, the glacial drift...600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...Amethysts, or Quartz crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T...S, R. 10 E, regional deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee |  | | Book (volume) | | Most specimen collecting is done in the Lead-Zinc mining dists. of northwestern Illinois, the glacial drift...600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...Amethysts, or Quartz crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T...S, R. 10 E, regional deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee |  | | Book (volume) | | corner of Kimball Co. where it overlooks both Colorado and Wyoming. The subsurface rock strata of the...debris spreading out from the Rocky Mountains as they rose during the Larimide revolution of 100 million years...chalcedony, jasper and gem petrified wood. BUFFALO COUNTY KEARNEY, area gravel bars and pits along the Platte...townagate, chalcedony, jasper, petrified wood. CASS COUNTY WEEPING WATER, SE, on rd. to Nehawka, in the Snyderville...chalcedony, jasper, fossils. CHERRY COUNTY VALENTINE, in the Sandhills county along the Niobrara R. and Minnechaduza |  | | Book | | Petrified Forest Trails Arizona Gem Trails and the Colorado Desert of California High Tension (A Biography)...\merica Alabama Alaska Arkansas Arizona California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho...Size Categories Dana's Classification of Minerals Quartz Family Gemstones The Various Names and Forms of...ancient gems), calcite, fluorspar, jadeite, pyrite, quartz family minerals ( agate, carnelian, chalcedony...C. from mines in Kenya. This amorphous form of quartz, with its brilliant flickering of rainbow colors |  | | Book | | typical 53 fault 67 67 Tilted strata of Roaring Fork Sandstone, Greenbrier entrance 69 Greenbrier...Thunderhead Sandstone Thunderhead Sandstone with quartz-filled fractures, 117 Clingmans Dome 117 Coarse-grained...Wilhite Formation, showing fractures filled with quartz and calcite 153 Strata of the Wilhite Formation...readily visible mineral grains consisting chiefly of quartz in lesser quantities) composed rock is of calcite...clay predominates, the a shaJe. Quartz grains predominate in quartz sand- stones. If metamorphosed |  | | Book (edition) | | MARIN COUNTY FREE LIBRARY 3 1111 00289 4184 \ I s Fifth Revised Edition A complete, state-by-state...Diamond M Tourmaline fQl Ruby, O Sapphire Quartz crystal 'y^ Garnet — Azu rite, Malachite, Chrysocolla...Maryland; Professor Richard Pearl of Colorado Springs, Colorado; and Professor Jack Hanahan of Belmont...from Derbyshire or, perhaps, a pyramid of smoky quartz from Cumberland. The next it may be rock crystal...agate, cut and polished, its concentric rings of rose, ivory and carmine enclosing a turbulent mass of |  | | Report (issue) | | beauty are found in Cowee Valley in the Franklin County area of western North Carolina. Many of these.......................... 10 12 History of Gem Mining ..... .......................... . 12 Important......................................... 16 17 Quartz ...................................................... Rose Quartz ....................................................... 18 18 Smoky Quartz ....................................... 18 Rutilated Quartz .............................................. | | | Report (issue) | | THULITE AND PYRITE MONAZITE EMERALD CUPRITE SMOKY QUARTZ ZIRCON TORBERNITE ~/ UBRAR'l USE ONLV ,~O...beauty are found in Cowee Valley in the Franklin County area of western North Carolina. Many of these...amethyst, almandite garnet, citrine, and smoky quartz. It is hoped that this publication will find a...GEM STONES IN NORTH CAROLINA 12 History of Gem Mining 12 Important Gem Stones 12 Diamond 12 Corundum...Rutile 17 Quartz 17 Rock Crystal 17 Amethyst •• 18 Rose Quartz 18 Smoky Quartz 18 Rutilated |  | | Journal (issue) | | section, climb of Coso and Maturango peaks, Inyo county. April 5-6—State Mineral Society of Texas, mineral...show, Sonoita, Arizona. April 7—Second annual Yuma county agricultural fair, Yuma, Arizona. April 7-May 7—"Message...POETRY EXPLORATION HUMOR NATURE HISTORY GEM STONES MINING LETTERS NEWS LAPIDARY HOBBY COMMENT BOOKS APRIL...Vermilion cliffs. Above and beyond their jagged canyons rose the White cliffs and still farther, still higher...the cool high North Rim. Kanab is the county seat of Kane county, and its history is inextricably entwined |
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