 | | Report (issue) | | Geology and Ore Deposits of the Boulder County Tungsten District Colorado GEOLOGICAL SURVEY PROFESSIONAL... Geology and Ore Deposits of the Boulder County Tungsten District Colorado By T. S. LOVERING and OGDEN TWETO...State of Colorado through the Colorado Geological Survey Board and the Colorado Metal Mining Fund UNITED...__________________________ Principal rocks of the district.________________________ Pre-Cambrian rocks__..._____ Lithology and petrography.______________ Quartz-biotite schist and gneiss. ______ Quartzite_ _ |  | | Journal (article/letter/editorial) | | GEOLOGY MAY, 1941 OF THE TUNGSTEN COUNTY, T. No. 3 ORES OF BOULDER COLORADO. • S. LOVERING. ABSTRACT...zone of sericitic alteration encases the Boulder County ferberite veins, but gives way abruptlyto a...Board and of the ColoradoMetal Mining Fund. 229 230 T. S. LOVERING. Quartz gangue ............................................... Tungsten ore .............................................. 248 25o SullYhides...easternedgeof the Front Range just west of Boulder,Colorado(Fig. x). The tungstendepositsextendin a Fro |  | | Journal (issue) | | ---------------------------------- 8-9 The Geology of the District of Columbia ---------------------10-11 -----... 50c. Wood, Silicified, eilCrllated with druay Quartz-50e, $1, $1.50. Wood, Silicified, (Acatiz-ed limb)-:-00c...Benjaminite (new)__.mall in Quartz.,....25c• Argentlte and Stepbani~in Quartz, showing crystals-41, $1.60...taJJized wire and leavea, small nuggets, some in quartz matrix. Alao crystals of rare minerals mounted...Chloropal on Gamet---60c, ,1.1!- . ~ Chloropal on Quartz 25c, 50c. Schools, Colleges, Museums If you are |  | | Journal (article/letter/editorial) | | 2014 MINE LEADVILLE MINING DISTRICT, LAKE COUNTY, COLORADO T he Leadville mining district, whose...publications, is one of the most famous silver mining camps in the United States. For an in-depth study...study of the ore deposits and mineralogy of the district, the reader is referred to Emmons, Irving, and...and Shannon and Shannon (1985). The fortunes of mining made several individuals millionaires, mostly from...height of his career, made scandalous headlines in Colorado newspapers by divorcing his straight-laced wife |  | | Journal (issue) | | Flatirons Facets Flatirons Mineral Club of Boulder County, Colorado Volume 59, Number 4 The Flatirons Mineral...yearly scholarship to a geology student attending a Colorado college. If you have specimens you are able to...just south of the South Boulder Recreation Center at 1360 Gillespie Drive, Boulder, 80305. Please note the...https://www.google.com/maps/search/1360+Gillaspie+Drive,+Boulder,+CO+80305/@39.9 739883,‐105.2512763,17z/data=!3m1...August 6, through our Boulder County foothills. I'm sure he’ll impart lots of gold mining history of the area |  | | Book (edition) | | COLO RAD O GEM T RAILS t.lilky quartz crystals, Ow-ay. Katherine H . Jensen. AND MINERAL GUID E RICHARD...MILEAGE L OGS. REVISED EDITION Revised Edition, COLORADO GEM TRAILS AND MINERAL GUIDE HICllAHD :--1. PEARL...an extensive ¥em and mineral collecting tour 01 Colorado, revealing the interesting places where Nature...Swallow, Publisher) 2679 South York Street Denver, Colorado 80210 - , =· - ·, BOOKS BY RICHARD M. PEARL...PEARL Exploring Rocks, Minerals, Fossils in Colorado America's Mountain: Pikes Peak and the Pikes Peak |  | | Book (edition) | | — _ ; COLORADO GEM TRAILS AND MINERAL GUIDE ! ■ : ' BOOKS BY RICHARD M. PEARL Colorado Gem Trails...Trails and Mineral Guide Colorado Rocks, Minerals, Fossils America’s Mountain: Pikes Peak and the Pikes...Nature As Sculptor: A Geologic Interpretation of Colorado Scenery Guide to Geologic Literature Popular Gemology...Gemology Mineral Collectors Handbook Colorado Gem Trails The Art of Gem Cutting (With Dr. H. C. Dake)...Dake) * RICHARD M. PEARL ★ COLORADO GEM TRAILS AND MINERAL GUIDE ★ SKETCH MAPS BY MIGNON WARDELL PEARL |  | | Journal (issue) | | from Basel Cathedral: The Reliquary Cross and Dorothy Monstrance Henry A. Hänni, Benno Schubiger, Lore...the presence of nickel, molybdenum, lanthanum, tungsten, platinum, lead, or bismuth proves synthetic origin...gem’s origin rarely accompanies a stone from the mine, or follows a synthetic through the trade after...Surdez, 1994; Peretti et al., 1995) Nepal—Taplejung district (Harding and Scarratt, 1986; Smith et al., 1997)...show different characteristics: At the John Saul mine, “pure” red ruby coloration is common; at the Penny |  | | 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 | | volume is dedicated is four-fold: (1) To locate by mine, deposit, or community those mineralized areas of...Co. Hematite CALERA, Shelby Co. Wavkllite CLAY COUNTY, Sec. 24. T. 19 S R., 7 E. STATUARY, Coosa Co...Co., (W. border of* Marble Crystalline TALLADEGA COUNTY Marble, (crystalline) VALLEY HEAD, DeKalb Co. Hematite...VILLAGE SPRINGS, Blount Co. Hematite WOODS COPPER MINE, Cloaburne Co. Sphalerite ARIZONA COVEI.I.ITE...Feldspar HISSOP, Coosa Co., (near) Beryl JACKSON COUNTY Hematite KENNEDYS, Clay Co., (near) Magnetite MILLERVILLE |  | | Journal (issue) | | of Missouri. THE Notes on EARTH SCIENCE Colorado Minerals by Victor Shaw FOREWORD On this brief...brief paper dealing with minerals of Colorado, it perhaps is not necessary to devote much space to detailing...a northeast and southwest direction in central Colorado. Also it seems advisable to mention here the well...involved. Included non-metallics in most cases are quartz, orthoclase, or plagioclase, or microcline, and...gangue may be chiefly feldspar, or perhaps chiefly quartz; (d) pegmatite dike structure usually has along |  | | 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 .................................... |  | | 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 |  | | Journal (issue) | | March 9 — Ninth Annual Almond Blossom Festival, Quartz Hill, Cal. March 9 and 23—Desert Sun Ranchers Rodeo...Dances, La gun a Pueblo, N. M. March 19-23—Maricopa County Fair, Mesa, Arizona, March 21-23—Dons Club Bus...LOST MINE FORECAST SERVICE HISTORY CONTEST EXPERIENCE CONTEST NATURE LETTERS CLOSE-UPS NEWS MINING LAPIDARY...Shorty of Death Valley 16 Papuan's Lost Placer Mine By DOROTHY ROBERTSON 17 Southwest river runof! predictions...—right on the surface," he said, handcountry. A clay mine near the end of the ing me the specimen. "It's not |  | | Journal (issue) | | Joliet, Ill. ident, Tenino, Wash'. and Mrs. Dorothy Craig, secretary, Los AngelH, Calif. Bottom row:...Boul der Dam, is being sponsored by the Clark County Gem Collectors of Las Vegas, Nev. Santa Cruz Helps...wonderful flower agate. The camp site is located at Boulder Beach right on the shores of Lake Mead. George... The camp is about four and a half miles from Boulder c:ty, Nev. A full day and evening of trips and...they are sure of a warm welcome from the Clark County eroup who always put on a wonderful program. The |  | | Journal (article/letter/editorial) | | specimens from the Wenden Area (Yuma Co.), Ariz. The quartz xls on the fire agate with flat blades and arranged...piece I send out too. "The second specimen is drusy quartz xls with small barite xls altered to brown limonite...limonite. "The third specimen is drusy quartz on green malachite. I also find this material on light blue...brassy-yellow grains of pyrite. COLORADO — O. A. Reese, 806 E. Boulder St., Colorado Springs, Colo., sent in...in an odd but very fine flat, loose, dark smoky quartz xl. The crystal is 5 inches long, iy2 inches wide |  | | Journal (issue) | | Albuquerque, New Mexico. Oct. 1-3 - - Cochise County Fair, Douglas, Arizona. Oct. 2-3—Apple Day, Julian...Julian, California. Oct. 2-3—Santa Cruz County Fair, Sonoita, Arizona. Volume 17 OCTOBER, 1954 COVER...Holbrook, Arizona. Color photo by Syl Labrot of Boulder, Colorado CALENDAR October events on the desert Oct... Oct. 13-16 — Kiwanis International Southwest District Convention, Albuquerque, New Mexico. Oct. 16—Fall...days a week during winter. Oct. 16-17 — Graham County Fair. Safford, Arizona. Oct. 17—Tucson Fine Arts |  | | Report (issue) | | Geological Society of America, [1987J. M(284)2 C266b Boulder, Colo. : Geologic map of the east flank of the...McCain Valley Wilderness Study Areas, San Diego County, California. Washington, D. C. : U.S. G.P.O., 1987...of the Southern Inyo Wilderness Study Area, Inyo County, California. Washington, D.C. : U.S. G.P.O., 1987...geologic map of northern Wilson Creek Range, Lincoln County, Nevada. Reston, Va. : U.S. Geological Survey,...Geologic map of the Marble Hill quadrangle, Bollinger County, Missouri. Reston, Va. : U.S. Geological Survey |  | | Report (issue) | | GEOLOGY AND MINERAL RESOURCES OF SAN DIEGO COUNTY, CALIFORNIA By F. HAROLD WEBER JR., California...parts of several sections, by R. M. Stewart COUNTY REPORT California Division of Mines Ferry Building...CAMPBELL, Director AND GEOLOGY State Geologist COUNTY REPORT ^ Price $8.00 3 CONTENTS Page ABSTRACT...metavolcanic rocks Hybrid gneisses and associated quartz diorite and granodiorite (Cretaceous and/or older)...Structural .. MINERAL RESOURCES _ AND MINING History of mining Mineral production _ Land ownership and |  | | Journal (issue) | | from the bank, the Grutt brothers were working in a mine shaft. One morning, an extra heavy charge of dynamite...downtown section and a major part of the residential district was destroyed —and another gold camp was started...locate the barrel of whiskey—but as in all lost mine stories— the unfortunate prospector failed. Thus...is where you find it" Drive to one of these LOST MINE SITES Magnificent 23"x34" full-color map shows the...29 GHOST TOWN: Tuscarora CHRIS JENSEN 30 LOST MINE: Monte Cristo Gold HAROLD O. WEIGHT 34 NATURE: |  | | Journal (issue) | | camping and hiking trip to Eagle Mountains of the Colorado desert. Overnight camp at Cottonwood Springs,...Smith Trek . . 18 MINES Current news of desert mining 20 INDIANS Navajo Justice By SANDY HASSELL ...Arizona. The route took us past the old Fortuna mine in the lower end of the Gila range. Fortuna was...apples. Apples never have tasted so good. I sliced mine thin and kept a small piece in my mouth as long...together many times in the canyons of California's Colorado desert. He spends nearly all his weekends on such |  | | Report (issue) | | BULLETIN 71 Mineral Resources of Taos County, New Mexico by JOHN H. SCHILLING Description of mineral...INSTITUTE OF MINING & TECHNOLOGY CAMPUS STATION SOCORRO, NEW MEXICO NEW MEXICO INSTITUTE OF MINING 8c TECHNOLOGY................................... 11 HISTORY OF MINING ................................................................................... Ore-bearing quartz veins ..................................................... 35 Spanish Main prospect ["Govenor's Mine"(?)] ....................................... 36 |  | | 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 |  | | Journal (issue) | | Flatirons Facets Flatirons Mineral Club of Boulder County, Colorado Volume 61, Number 4 The Flatirons Mineral...just south of the South Boulder Recreation Center at 1360 Gillespie Drive, Boulder, 80305. The picnic starts...indicated with an *. • • • • July 7 – *Kremmling, Colorado to collect fossils July 20‐22 – Rocky Mountain...16 for more information) July 21 – *Two Creeks, Colorado to collect blue barite and calcite July 28‐29...iron from Central Wyoming Kemmerer Fossil fish Boulder Creek Festival on Memorial Day Weekend Many thanks |
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