 | | 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 |  | | Journal (article/letter/editorial) | | Vol. 20 SOCIETY OF' AMERICA MAY, 1935 No.5 COLORADO PEGMATITES KBNNBTU K. Lauons, Unioersity of Kansas...in every county 'of Colorado along the Front Range of the Rocky Mountains from Larimer County on the Wyoming...Wyoming line to Custer County in the south-centralpart of the state, and in scatteredpre-Cambrianareas...schists and granites of Larimer County are cut by numerous pegmatite dikesl which have been exploited...exhibiting an ore mineral phaseoccur in Boulder County.3JeffersonCounty contains both tourmaline and muscovite |  | | Journal (issue) | | Julius Weber Mamaroneck, New York COLORADO ISSUE #2 Articles Colorado locality index.............................. 323 by B. L. Muntyan What’s new in Colorado minerals? ...................................... Famous mineral localities: the Home Sweet Home mine ..................................................339 by M. I. Jacobson The San Juan Mountains of Colorado ..................................349 by J. A...AMAZONITE with smoky quartz, 10 cm tall, from the Yucca Hill claim, Park County, Colorado. Richard A. Kosnar |  | | 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 |  | | Report (issue) | | Aspen 15-minute Quadrangle, Pitkin and Gunnison Counties, Colorado By BRUCE BRYANT GEOLOGICAL SURVEY PROFESSIONAL...A study of an area at the intersection of the Colorado mineral belt with the west flank of the Sawatch...Aspen 15-Minute quadrangle, Pitkin and Gunnison Counties, Colorado (Geological Survey Professional Paper...Bibliography: p. 123 1. Geology Colorado Aspen region. 2. Mines and mineral resources Colorado Aspen region. I. Title............... ............. Mixed quartz diorite, pegmatite, quartz monzonite, and mica schist and gneiss |  | | Report (issue) | | GEOCHEMISTRY AND ORIGIN OF PEGMATITES CHEROKEE-PICKENS DISTRICT, GEORGIA Alexander J. Gunow and Gregory N. Bonn...103 Cover photo: Pegmatite& in the stream bed of Toonlgh Creek, Cherokee County. THE GEOCHEMISTRY...GEOCHEMISTRY AND ORIGIN OF PEGMATITES CHEROKEE-PICKENS DISTRICT, GEORGIA Alexander J. Gunow and Gregory N. Bonn................... . .. . . ............ .. 10 Pegmatite Deposits ... .. ...... .. . .. . ... ... ....... . .. .. . . .. ..... . ......... . ..... 10 Pegmatite Fields .... ....... .. ...................... |  | | Report (issue) | | GEORGETOWN QlJADRANGLE (TOGETHER 'VITH THE EMPIRE DISTRICT) COLORADo· BY JOSIAH E. SPURR AND GEORGE H. GARREY...... _·_ .................................... . Quartz gneiss ...................................... _.......... : .................................. . Quartz monzonite gneiss (adamellite gneiss) ........................................ _....... __ ... . Quartz monzonite (adamellite) ... ~ ....................: .......................................... . Quartz-bearing diorite and associated hornblendite .. |  | | 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 (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 (article/letter/editorial) | | Park, Maryland. Hafi, John C., Colorado School of Mines, Golden, Colorado. Heyl, George R., U. S. Geological...articles on quartz oscillatorplates. These valuable and timely contributions on the geology of quartz crystal...inspection, grading, cutting and testing of thin quartz wafers, were made possible largely through the...mineralogy Mineralography Memorials Miscellaneous Quartz osciliator-plates (Symposium) Total entries Illustrations...geological studies in both field and Iaboratory. Mining geologists have made valuable paragenetic studies |  | | Thesis/Dissertation | | mapping technique in the Italian Mountain area, Colorado Item Type text; Thesis-Reproduction (electronic)...MAPPING TECHNIQUE IN THE ITALIAN MOUNTAIN AREA, COLORADO By Henry Albert Truebe A Thesis submitted to... . . . . . . . . . . . . . . . . . . . . . . . Mining History . .......................................tectonic setting of the Italian Mountain area in Colorado. . . . . . . . . . : ................... 2 Generalized...mapped by dividing the Italian Mountain area, Colorado into 884 100-meter grid spaces and inventory |  | | Report (issue) | | organization is carrying on for the direct advancement of mining interests throughout the country than can readily...oil resources of the Santa Maria oil district, Santa Barbara County, Cal., by Ralph Arnold and Robert Anderson...Jordan,.jr. 338. The iron ores of the Iron Springs district, southern Utah, by C. K. Leith and E. C. Harder...Phalen. 350. Geology of the Rangely oil district, Rio Blanco County, Colo., with a section on the water supply...Hess. 357. Preliminary report on the Coalinga oil district, Fresno and Kings counties, Cal., by Ralph Arnold |  | | Report (issue) | | AND ENVIRONMENTAL GEOLOGY OF THE SUMMITVILLE, COLORADO ACID-SULFATE MINERAL DEPOSIT By J.E. Gray1 ,...of fresh quartz latite and vuggy silica........25 Figure 6. Sample of vuggy silica with quartz overgrowths...the Summitville mine................... 29 INTRODUCTION The Summitville mining district has received...environmental problems related to mining activities. Summitville Consolidated Mining Company, Inc. (SCMCI), a...open-pit gold mine at Summitville during the period from 1986 to 1992. Although mining ceased in the |  | | 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 |  | | Report (volume) | | Intrusive Rocks ana Associated Ore Deposits in the Colorado Mineral Belt U.S. GEOLOGICAL SURVEY BULLETIN... Alaska Rm. 101,4230 University Dr. LAKEWOOD, Colorado Federal Center, Bldg. 810 MENLO PARK, California...Intrusive Rocks and Associated Ore Deposits in the Colorado Mineral Belt By Charles G. Cunningham, Charles...understand the temporal and spatial evolution of the Colorado Mineral Belt UNITED STATES GOVERNMENT PRINTING...intrusive rocks and associated ore deposits in the Colorado Mineral Belt / by Charles G. Cunningham ... [et |  | | Report (issue) | | deposits________________________ Quartz-tungsten veins......._____________________ Quartz-gold veins.._________..._________________ ___. Nevada ___________ Elko County. - ______ ... _ Star mine, Harrison Pass _____ ____ Pag« 59...63 Good Hope barite mine, Tuscarora Range _____ _ ._. ________ Humboldt County Golconda manganese-tungsten...Ltd., mine...... --_--______.______ Lincoln County__-__-----_-----_-----___ Tern Piute district.........district____ .________..__ Nevada Scheelite mine.. _ ______ Hooper No. 2 mine __ _____ _ _ Yankee Girl mine_______________ |  | | Report (issue) | | SOUTHERN CORDILLERA" AGS/UA Mine Tour and Field Trip data for TRIP #4 "Copper Creek - Tiger - Kalamazoo Deposits"...TO: Registrants for AGS Field Trip #4, Copper Creek-Tiger-Kalamazoo Deposits As field trip chairman...Geological Society, I would like to take this opportunity to welcome you to the Southwest and thank you...provided the Society and our profes sion a unique opportunity to observe, examine, and discuss on a first hand...This particular excursion will take you to Copper Creek, Tiger, and the discovery outcrops above the Kalamazoo |  | Snyder, George L., Hausel, W. Dan, Klein, Terry L., Houston, Robert S., Graff, Paul J. (1989) Precambrian Rocks and Mineralization, Southern Wyoming Province - Hartville Uplift to Copper Mountain Area, Wyoming July 19-25, 1989. Field Trip Guidebook T332. American Geophysical Union | Report (issue) | | canyon wall on north side of North Fork Cherry Creek and on Tony Ridge, Bull Camp Peak 1 1/2-minute quadrangle...References cited 1U .S. Geological Survey, Denver, Colorado. ~e Geological Survey of Wyoming, Laramie, Wyoming... Guernsey, Wyoming (307-836 2356). Cultural opportunity to visit traces of Oregon Trail stage coach route...iron-formation formerly quarried at the Atlantic City mine. Return to Holiday Lodge, Lander, for evenin~. Tuesday...visit Copper Mountain supracrustal belt of Owl Creek Mountains, and return to Casper airport by 4:00 |  | | Journal (article/letter/editorial) | | shallow-intrusive textures are composed almost entirely of quartz and of topaz (Johannson, 1932); ii) late-stage...rhyolites ro and granites, and greisen-, pegmatite-, quartz-type veins; and iii) cavities formed by the...Phenocrysts of topaz, K-feldspar and mica in a quartz-feldspar-topaz groundmass, within ongonite from...2014); (C) Topaz at the Honeycomb Hills rhyolite, USA, as a primary phenocryst phase including biotite...biotite (Congdon and Nash, 1991); (D) Phenocrysts of quartz, alkali feldspar, and topaz in the rhyolite dikes |  | | Report (issue) | | Deposits of the Uncompahgre (Ouray) Mining District, Southwestern Colorado Professional Paper 1753 U.S. Department...western San Juan Mountains region of southwestern Colorado. In the foreground is a broad, gently south-sloping...confluence of the Uncompahgre River and Canyon Creek valleys and is almost surrounded by mountains towering...prospects that constitute the Uncompahgre mining district are located mostly within the cliffy slopes...Deposits of the Uncompahgre (Ouray) Mining District, Southwestern Colorado By Wilbur S. Burbank and Robert |  | | Report (issue) | | Oxidized Zinc Deposits of the United States Part 3. Colorado By ALLEN V. HEYL GEOLOGICAL SURVEY BULLETIN...deposits and the resources of oxidized zin.c ores in Colorado UNITED STATES· GOVERNMENT PRINTING OFFICE, WASHINGTON...19180xidized zinc deposits of the United States. Part 3. Colorado. Washington, U.S. Govt. Print. Off., 1964. vi...Bibliography : p. 88-91. 1. Zinc ores-Colorado. 2. Zinc mines and mining-Colorado. I. Title. (Series) For sale..._________ Rifle Creek district_ _ _ _____________ _ ___ ____ __ ________ __ __ __ Clear Creek County_____ |  | | Book | | mid-1957, of vvhich 70% is in New Mexico, 16% in Colorado, Utah, and Arizona, and 8% in Wyo1ning. These...doubtless the U.S.S.R., likewise established uranium mining industries. These efforts in the Reid and in the...siliceous and Ruoritic types, and the oxidized Colorado Plateau deposits are desc1ibed vvith those that...origin, e.g., Blind River, \i\litwatersrand, and Colorado Plateau. The writer has attempted to present equitably.... . . . 165 180 182 Chapter 5: RADIOACTIVE PEGMATITE DEPOSITS Geological Characteristics of Pegmatites |  | | Report (issue) | | DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY COLORADO SCIENTIFIC SOCIETY FALL FIELD TRIP September...PROTEROZOIC VOLCANOGENIC SEQUENCES IN CENTRAL COLORADO John C. Reed, Jr. U.S. Geological Survey Trip...Leader K. Lee Shropshire University of Northern Colorado Chairman, Field Trip Committee Open-File Report...Geological Survey editorial standards Denver, Colorado 1991 INTRODUCTION1 Precambrian crystalline...exposed in the Laramide and post-Laramide uplifts in Colorado and southern Wyoming include Early Proterozoic |  | | Report (issue) | | -------------------------------------IIothouse Creek............------------------------------------...-----------------------------------------------Quartz ...........,....------------------------------..._______________________________________ Talbot CountY-----------------------------------------------...-----------------------------Kyanite in Fulton County, by Geoffrey W. Crickmay -----------------,------........ · 41 41 41 42 43 43 44 VI Page Towns CountY----------------------------------------------- |
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