 | | Journal (article/letter/editorial) | | northward from Deer M ountain (Rocky M ountain National Park quadrangle). The schist in the Mummy Mountains dips............... 314 Structures in theLongs Peak-Estes Park region.........................................GRANITES OF T H E FRONT BANGE Rocky Mountains in Colorado. It is the purpose of this paper to describe the...presented.3 To the department of geology of the Colorado School of Mines at Golden, and to the department...structure along the Big Thompson River valley, Colorado, Jour. Geol., vol. 32 (1924) p. 52. 3 Field and |  | | Book (edition) | | ONYX • PERIDOT* • ZIRCON • CARNELIAN TOURMALINE OPALS • AOATI • • AMETHYST URINE • •... lOLITE k:^ RUBY /^^ RUTILE SAPPHIRE 1^ TOURMALINE CRYSTALS TOPAZ CRYSTALS 4 GEM hunter's GUIDE...six or eight different gem as color, its tourmaline may B are, in fact, A blue gem minerals...found many of stones, such as quartz amethyst, tourmaline, beryl, topaz and spodumene. crystals, Areas...mine, Racooche Valley, White Co. 1866 Vs White County Daniel Light form, % mi. NE Less than 1887 |  | | Journal (article/letter/editorial) | | PRE-CAMBRIAN STRUCTURE ALONG THE BIG THOMPSON RIVER IN COLORADO' MARGARET BRADLEY FULLER Northwestern University...eastern flank of the Front Range in north central Colorado (Fig. i). The preCambrian structures occupy parts...The western slope of this range descends to Middle Park and dips to the west under the overlapping edges...the "Geology of the Big Thompson River Valley in Colorado," accepted at the University of Chicago in partial...the Big Thompson River Valley in north central Colorado. The boundaries of the rock formations are roughly |  | | Report (issue) | | Mountain Quadrangle, Grand and Jackson Counties, Colorado By James C. Cole, William A. Braddock, and Theodore...Mountain quadrangle, Grand and Jackson Counties, Colorado: U.S. Geological Survey OpenFile Report 2011–1111...Mountain Quadrangle, Grand and Jackson Counties, Colorado By James C. Cole, William A. Braddock, and Theodore...rocks and Upper Cretaceous(?) and Paleocene Middle Park Formation. The folding and faulting appears to reflect...singular contractional deformation (post-Middle Park, so probably younger than early Eocene) that produced |  | | Book | | Guide to Roads and Trails of Rocky Mountain National Park Halka Chronic MOUNTAIN PRESS PUBLISHING COMPANY...Geology—Colorado—Rocky Mountain National Park— Guide-books. 2. Rocky Mountain National Park (Colo.)—...Roadside Geology: Getting to the Park U.S. 36 Lyons to Rocky Mountain National Park.. U.S. 34 Loveland to Rocky...National Park U.S. 34 Granby to Rocky Mountain National Park .. Colorado 7 Lyons to Estes Park...........Geology: Park Roads Trail Ridge Road — a Two-way Guide ............ceeseseeeeeeeees 47 Moraine Park—Bear |  | | Book (edition) | | 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...Atlas of Colorado American Gem Trails Nature As Sculptor: A Geologic Interpretation of Colorado . Scenery |  | | 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 (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 |  | Stern, Charles R., Allaz, Julien M., Raschke, Markus B., Farmer, G. Lang, Skewes, M. Alexandra, Ross, Jeremy T. (2018) Formation by silicate–fluoride + phosphate melt immiscibility of REE-rich globular segregations within aplite dikes. Contributions to Mineralogy and Petrology, 173 (8) doi:10.1007/s00410-018-1497-7 | Journal (article/letter/editorial) | | Plume-type peraluminous granite near Jamestown, Colorado, contain F, P, and rare earth element (REE)-rich...· Aplites · Globular segregations · Jamestown, Colorado Introduction Communicated by Timothy L. Grove...Geological Sciences, University of Colorado, Boulder, CO 80309‑0399, USA 2 Departments of Physics, Chemistry...Chemistry, and JILA, University of Colorado, Boulder, CO 80309‑0390, USA 3 Present Address: ETH Zurich...Corp, 3351 Onslow Drive, Camp Lejeune, NC 28547, USA The rare earth elements (REE) are critical metals |  | | Journal (issue) | | C. Morris ................................ A COLORADO VACATION. By /. E. Andress .....................with crystals of quartz, feldspar, corundum, tourmaline, beryl, etc., are found in such deep-seated rocks...white quartzite which he had picked up in Nuckolls County, Neb. From a map of Rhode Island I picked a small...Association! be hidden. 408 ROCKS AND MINERALS A COLORADO VACATION By J. E. ANDRESS For one who is accustomed...Illinois, it is refreshing to visit the State of Colorado, especially in the fall of the year. Then not |  | | Book (volume) | | ...........................................59 Colorado ...............................................................548 Table of Maps Page Alabama County Map ...................................................................................4 Alaska County and Stream Map ......................................................................22 Arizona County Map ................................................................................49 Arkansas County Map .......................................... |  | | Journal (article/letter/editorial) | | ......................................... 395 Colorado................................................................................ 441 Yellowstone Park views................................................................... 456 Geysers, Yellowstone park, W yoming.........................................slides, 50 cents each 150. Grand canyon of the Colorado. not mounted, $15.00. Size, 21 by 74 inches;...States Geological Survey 151. Grand canyon of th e Colorado at the footof the Toroweap, inArizona. The outer |  | | Journal (issue) | | possibly, some from the new local ity at Yogo , Fergus County. The Rock Creek placers produce quite a proportion...on a fork of the Judith River,near Yogo, Fergus County, but during the last summer a min ing company having...identification , who wrote back that they were tourmaline and of rare In return for his kindness, the youthful...heulandite. Pretty good evidence of a wide pectolite tourmaline, named were notion of what is the finest American...the planes are more or less pitted. Tourmaline. — Black tourmaline was abundant in the vein, mostly in |  | | Book (volume) | | ...........................................47 Colorado ................................................rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...gemmy qualities for cutting and polishing. AUTAUGA COUNTY PRATTVILLE, N. 6 mi., and just E of the Birmingham...were well known to prehistoric Indians.) BARBOUR COUNTY BAKER HILL, SE 1 mi. : 1 in a deep ravine, as a...deep red to variegated⎯ocher. BIBB COUNTY GENERAL AREA: c county gravel pits along the Cahaba R.⎯gemmy |  | | Book (volume) | | ...........................................47 Colorado ................................................rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...gemmy qualities for cutting and polishing. AUTAUGA COUNTY PRATTVILLE, N. 6 mi., and just E of the Birmingham...were well known to prehistoric Indians.) BARBOUR COUNTY BAKER HILL, SE 1 mi. : 1 in a deep ravine, as a...deep red to variegated⎯ocher. BIBB COUNTY GENERAL AREA: c county gravel pits along the Cahaba R.⎯gemmy |  | | Journal (issue) | | ................ THE ROY AL GORGE AND CENTRAL COLORADO. By J. E. Andress .............................. A vacation spent in Central and near Eastern Colorado, "The Closest State to Heaven," can be made most...various important and strategic minerals. Western Colorado or beyond the Continental D ivide doubtless holds...Beginning at Denver, the vacationist will find Colorado Springs ancl Manitou about 75 miles south at the...and petrified wood. About 40 miles southwest of Colorado Springs is pleasant Canon City on the Arkansas |  | | Book (volume) | | Idaho; rectangular step cut purplish pink elbaite tourmaline (30.89 ct), Maine; round brilliant red-orange...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...Cantlin, Ellis, [D; Jeannette B. Carillo, Gem Center USA, EI Paso, TX; Gary Christopher, The Prospectors Cache...James D. Lindberg, Las Cruces, NM; Jack Lowell, Colorado Gem & Mineral Co., Tempe, AZ; Steven & Lorna Lukinuk |  | | Report (volume) | | ............................................. Colorado.................................................especially from those of Arkansas, California, Colorado, New Mexico, Oregon, South Dakota, Tennessee,...minerals and rocks, their occurrence and uses: Colorado State Geol. Survey Bull. 6, 1913. 8 USEFUL...See Bauxite and Halloysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton; |  | | Journal (issue) | | edltorOrockngem.com Geodes, Geodes, Geodes! Gem Center USA lnc. has one of the world's largest selection of...different kinds of geodes are now available. Gem Center USA Inc. is also one of the leading distributors of quality...type of stone you are loolnns for, .. Gem· Center, USA Inc. •s your source, . Come See Us At The Followins...Topaz, SOO ets. Garnet, Smoky, Citrine, lolite, Tourmaline, etc. Apr19 Diamond, Emerald, Ruby, Sapphire-blue...Topaz, Garnet, SOO ets. Smokv, Citrine, lolite, Tourmaline, etc. Cabochons Apr21 Rare ~ine Fluorite 600 |  | | Journal (issue) | | resist visiting local rock shops. While in Estes Park, Colorado, we found a shop on the main street. I’m...night and they just had to have them to remember Estes Park. Lol! So, we bought two small towers with light...Lunar & Planetary Science Conference, Kevin Canon (Colorado School of Mines in Golden) contends that in its...around the world. Glass Beach, MacKerricher State Park Fort Bragg, California Seaham Hall Beach Seaham...California Sea Glass Beach Okinawa Island, Japan Grant Park Beach South Milwaukee, Wisconsin Mornington Back |  | | Report (volume) | | Pittsburgh, Pa. Coal Age, vols. 13, 14. New York. Colorado School of Mines: Magazine, vol. 8; Quarterly,...Maryland Geological Survey: vol.. 10; Anne Aruiidel. County. Baltimore, Md. Mazama, vol. 5; no. 3.. Poutkind...Chicago, 111. West Virginia Geological Survey: County Reports, Barbour-Upshur:Randolph. Morgantown, W...Adkinson, Henry; M. 4. The oil shales of Utah and Colorado: Salt Lake Min. Rev., vol. 20, no. 8, pp. 21-25...on back of topographic map], New York (Suffolk County), Moriches quadrangle (Camp Upton edition), U. |  | | Journal (article/letter/editorial) | | clusions, almost all colors, none is t h e common Colorado b r o w n . W e have cut over 3 0 0 , 0 0 0 square...o d s , 5 8 3 0 W . 2 n d Avenue, Denver 2 6 , Colorado. A T T E N T I O N CUTTERS! Dark blue sodalite...golden barite xls on galena w i t h siderite, Colorado: 4 x 4 " $ 1 2 . 5 0 ; apophylite xls on matrix...Minerals, 1100 Josephine St., "Denver 8 0 2 0 6 , Colorado. FOR SALE — I am o f f e r i n g the 16 lb., 2...Dawe, Crowell P.O., Barrington Passage, Shelbume County, Nova Scotia, Canada. SPECTACULAR SPECIMENS OF |  | | Book (edition) | | —Roadside Geology Series $14.00 RCMDSIDE EOLOGY of COLORADO Halka Chronic MAP SYMBOLS SEDIMENTARY ROCKS...Formations Undivided Tertiary E3 z Cfl Browns Park Formation Third phase volcanics Triassic-Jurassic...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 |  | | 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 |  | | Journal (issue) | | MUSEUM - PENNSYLVANIA STATE COLLEGE EXPEDITION TO COLORADO (1 948 ). By David M . Seaman ..................························-···········238 SOME TOURMALINE NOTES. By Maj. Gen. Julian S. Hatcher .........MUSEUM-PENNSYLVANIA STATE COLLEGE EXPEDITION TO COLORADO ( 1948 ) By DAVID M. SEAMAN Associate Curator...mineral collecting trip in cential and south-central Colorado collecting from some thirty-five mineral localities...well planned from noting the many lo..:alities in Colorado which have lress, appeared from time to time in |
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