 | | Journal (article/letter/editorial) | | PEGMATITES OF EIGHT MILE PARK, FREMONT COUNTY, COLORADOXT E. Wrrr. HerNnrcu, Department of Mineralogy...district, three to twelve miles west of Canon City, Fremont County, Colorado, includes about 30 square miles...westernmost end of the Canon City embayment in the Front Range structure. The area is a dissected plateau...that is bisected by the Royal Gorge of the Arkansas River, rvhich is nearly 1200 feet deep locally. The...of the area will be presented in a separate paper. 420 PEGMATITES OF EIGHT MILE PARK, COLORADO 42r |  | | Journal (article/letter/editorial) | | Florida] at 01:47 09 August 2017 Quartz Sand from Arkansas A nice sample of fine grained white sand consisting...sand was collected along Ark. highway 69, in Izard County, between Brockwell and Cushman (but closer to Cushman)...from Carmel, Calif. Carmel, in N . W . Monterey County, is on the Pacific Ocean and from its beach we...smoky). Please send them in. near Texas Creek in Fremont Co., Colo. This is a fine grained black sand consisting...amounts of colorless quartz, red garnet, green epidote, and at least 6 grains of gold of which two are |  | | Report (issue) | | Quadrangle, Chaffee County, Colorado GEOLOGICAL SURVEY Work done in cooperation with the Colorado State Mining...the Poncha Springs SE Quadrangle, Chaffee County, Colorado By RALPH E. VAN ALSTINE GEOLOGICAL SURVEY...PROFESSIONAL PAPER 829 Work done in cooperation with the Colorado State Mining Industrial Development Board Description...sand, manganese, and pegmatite in part of the Arkansas Valley UNITED STATES GOVERNMENT PRINTING OFFICE...Springs SE quadrangle, Colorado Page .In pocket Index map of south-central Colorado ______ __ ____ Photographs |  | | Report (issue) | | CHAFFEE, FREMONT, AND JEFFERSON COUNTIES, COIO. By WALDEMAR LINDGREN. INTRODUCTION. Colorado is not an...Juan County slightly exceeded 1,500,000 pounds. The copper ores, properly so called, of Colorado comprised...which one-half came from San Juan County. It may be said that Colorado does not contain a single copper...249 tons of copper ores in 1906; the yield of Fremont and Jefferson counties is negligible. Although...Nearly all the gold- and silver-bearing deposits of Colorado, and the copper deposits as well, occur in close |  | | Journal (article/letter/editorial) | | THE CHIEF LITHIUM PEGMATITE, DEVILS HOLE, FREMONT COUNTY, COLORADO1 E. Wu. HnrNnrcu eNo Rrcnann W. VraN...corporation in canon city, colorado. However, Iithium minerals were rumored to have been found in this area as early...of his generar investigationof the geologvof the area (Vian, 1965). 1 Contribution No. 265, Mineralogical...Creek, 5 mites Frc. 1. Index map of the Devils Hole area, showing location of the Chief pegmatite. GsuBn...volcanic field down to the north rim of the Arkansas River vallev. TnB Cnrnn Ppcuarrre General.The Chief |  | | 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 (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 |  | | 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 |  | | Journal (article/letter/editorial) | | Complexes in the Wet Mountains Area, Fremont and Custer Counties, Colorado Theodore J. Armbrustmacher and...Carl E. Hedge US Geological Survey, Denver, Colorado 80225, USA Abstract. Concentrations of Rb, Sr, and...Cambrian alkaline complexes in the Wet Mountains area, Colorado, show that rocks formed as end-products of...alkaline igneous complexes in the Wet Mountains area, the McClure Mountain Complex, the Gem Park Complex...Setting The Wet Mountains area is about 20 km southwest of Canon City, Colorado, just east of the Sangre |  | | Report (issue) | | Surface-Water Discharge in the Vicinity of Lincoln Park, Colorado, 1961 through 1996 By Edward R. Banta U.S. GEOLOGICAL...cooperation with the COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT Denver, Colorado 1997 U.S. DEPARTMENT.........................~^ 2 Description of Study Area...................................................data-collection sites in the vicinity of Lincoln Park, Colorado, 1961-96 FLOPPY DISK [Floppy disk is in pocket]...6. Stratigraphic units of interest in the study area................................................ |  | | Book | | MINES AND MINERALS OF THE GREAT AMERICAN RIFT (COLORADO-NEW MEXICO) Sine —_—< ¢ te om At _SHT 40...MINES AND MINERALS OF THE GREAT AMERICAN RIFT (COLORADO-NEW MEXICO) Richard Walker Holmes and Marrianna...Mines and minerals of the Great American Rift (Colorado-New Mexico). Bibliography: p. Includes index...index. 1. Mines and mineral resources—Colorado. 2. Mines and mineral resources—New Mexico. I. Kennedy, Marrianna...minerals of the Great American Rift in New Mexico and Colorado. Great American Rift is the name we use for a |  | | Book | | Gkologim-in-charge. CATALOGUE OF MINERALS FOUND IN COLORADO. BY • F. M. ENDLICH. [EXTRACTED FROM THE TENTH...been adopted. tar as practicable, analyses of Colorado minerals have been given. They will aid examination...of the catalogue. systematic enumeration of the Colorado mineral species and references to the publications...Endlich, S. IN COLORADO. X. D. The continuous development of mineral resources of Colorado is productive...Geological .Report for PS75. Now, the survey of Colorado is completed, many additions of species new to |  | | Report (issue) | | the Poncha Springs NE Quadrangle, Chaffee County,Colorado By RALPH E. VAN ALSTINE With a section on ... PAPER 626 Prepared in cooperation with the Colorado State Mining Industrial Development Board UNITED...Ralph E. Van Alstine and Doak C. Cox _________ _ Colorado-American mine ______________ -_Delay adit and...Poncha Springs NE quadrangle. Geologic map of the Colorado-American fluorspar mine, Browns Canyon district...district. Geologic map of underground workings, Colorado-American fluorspar mine. Longitudinal section showing |  | | Journal (article/letter/editorial) | | Two Point claim, Pikes Peak batholith, Teller County. The Collector’s Edge specimen, Jeff Scovil photo...Mail Stop 150, Box 25046 Federal Center Denver, Colorado 80225 pmodreski@usgs.gov C olorado is, of course...been written as guides to mineral collecting in Colorado. A classic, which went through three major editions...1951 version with a slightly different title), is Colorado Gem Trails and Mineral Guide, by Pearl (1951,...up-to-date guidebook to the state’s minerals is Colorado Rockhounding, by Voynick (1994). Other published |  | | Book (volume) | | THE SOUTHWESTERN QUADRANT Arizona, Arkansas, California, Colorado, Louisiana, Nevada, New Mexico, Oklahoma...The Southwestern Quadrant Arizoni, Arkansas, California, Colorado, Louisicna, Nevada, New Mexico, Oklahoma...treasured friend, Frank A. Greene, Jr. of Coal City, Illinois | ae a nem ee as - @ lan aus...Mineral Location Numbers Arizona Arkansas California Colorado 258 Louis B30 ana HOW TO USE...volumes, through very precise directions and accurate county maps, to get you to the best and most accessible |  | | Journal (issue) | | (RMFMS) www.rmfms.org Colorado Federation of Gem & Mineral Societies (CFGMS) Colorado Springs Mineralogical...CSMS Calendar Pg 2 Calumet Iron Mine Pg 3 Colorado Extraterrestrials Pg 6 Pebble Pups Corner Pg...provided by the Fossil Group COLORADO SPRINGS MINERALOGICAL SOCIETY PO BOX 2 COLORADO April 2013 PICK SPRINGS...303-423-5876, bjmelby@q.com. Fri-Sun, April, 19-21, COLORADO MINERAL & FOSSIL SHOW-SPRING, Denver, CO, Martin...Aumente 505-867-0425, mzexpos@gmail.com Sat., May 4, Colorado Mineral Society Mineral Auction, Holy Shepard |  | | 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 (article/letter/editorial) | | TRIP TO COLORADO By PETER ZODAC Editor, Rocks and Minerals It is always nice to go on a long trip, especially...cooperative. Such a trip was made last June to Colorado with my cousin, Royce Phillips of Washington,...some collecting. I had no intentions of going to Colorado last summer, as work had me tied down. An invitation...of Canon City, Colo., requesting me to attend the big convention that was to be held in his city; his...as he was going alone— and this is how I got to Colorado. There would be only one slight hitch, he wrote |  | | Journal (article/letter/editorial) | | DEPOSITION IRON MINE, x936 AT THE No. 8 CALUMET COLORADO. • CHAS. H. BEHRE, JR., E. F. OSBORN, AND E....the abandoned iron mineat Calumet,ChaffeeCounty,Colorado,offeredan atßPresented beforethe Geological Societyof...for data; and to Mr. P. J. Schlosser,of Turret, Colorado, for locatingclaimboundariesand furnishingmaps...Hills, was madeavailablethroughthe courtesyof the Colorado Fuel and Iron Company. In •93 •, Butler and Goddard...located in T. 5 • N., R. 9 E., Chaffee County, central Colorado. Its geographicpositionis shownin Fig |  | | Journal (article/letter/editorial) | | ites fromthe Wet MountainsArea, Fremont and Custer Counties,Colorado TnEOr)ORE J. ARMBRUSTMACHER Abstract...the associated carbonatites of the \Yet Mountains area carbonatite locations are summarized. are of Cambrianage...are not appar- CARBONATITE$, WET MOUNTAINS AREA, COLORADO 891 FiG. 2. Photomicrographs in plane light...Na:Fe2+aSi80• (OH)• VR VR Diopside Dolomite Epidote CaMgSi•O• Ca(Mg, Fe, Mn)(CO3)• Ca•FeAI•O. OH....averagecrustal igneousrocks. This latter group of area. elementsis typicallyabundantin maficand ultramafic |  | | Report (volume) | | San Isabel National Forest, South-Ce tral Colorado COLORADO An Assessment of the Mineral Resource...the San Isabel National Forest, South-Central Colorado By Richard B. Taylor, Rebecca j. Stoneman, and...the San Isabel National Forest, south-central Colorado Mineral resource potential map of the San Isabel...Isabel National Forest, south-central Colorado FIGURES 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14....the San Isabel National Forest, South-Central Colorado By Richard B. Taylor, Rebecca j. Stoneman, and |  | | Report (issue) | | deposits in the Wet Mountains area, Fremont and Custer Counties, Colorado By T. J. Armbrustmacher Open-File...--Location and geologic map of the Wet Mountains area 2 2.--Carbonatite dike cropping out at the Miles...--Photomicrograph of carbonatite from Brush Hollow Creek area 9 6. Prospect pit in a red rock syenite dike located...deposits in the Wet Mountains area, Fremont and Custer Counties, Colorado 1 By T. J. Armbrustmacher Introduction...deposits have been known to exist in the Wet Mountains area since at least the early 1950's. This talk summarizes |  | | Journal (issue) | | ................ THE ROY AL GORGE AND CENTRAL COLORADO. By J. E. Andress ..............................one, "because I have moved from A-city to B-city. As you know B-city is not known for minerals so your... 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 |  | | Journal (issue) | | Operator of the Crystal Peak Gem Mines, Teller, Colorado Mark Ivan Jacobson markivanjacobson@gmail.com...com A. B. Whitmore is remembered in Colorado as the owner and operator of the Crystal Peak Gem Company...various times in Ohio, Iowa and Illinois. Moving to Colorado In July 1875 Albert Whitmore at the age of 21...south into Colorado via Denver, heading for Colorado Springs. "I believe I got into Colorado about July...ground still covered with snow, hail and sleet" (Colorado Springs Gazette I 931 ). The Denver Daily Times |  | | Journal (article/letter/editorial) | | ANTHOPHYLLITE WITHIN THE ALBITE-EPIDOTE HORNFELS FACIES. FREMONT COUNTY. cor6nnoo CuRnrBs A. Salorrr...western Fremont County, Colorado. The metamorphic grade of these albitic quartzites-the albite epidote hornfels...apparent instability of paragonite within the albite-epidote hornfels facies. INrnorucrrow During the summer...Precambrianrocks north of the Arkansas River between Howard and Cotopaxi in southcentral Colorado,discloseda well-exposedisolated...Mitchell Gulch, the most prominent drainage in the area. Included among the rock types is a quartz-albite-anthophylIite |
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