 | | Report (volume) | | the Browns Canyon Wilderness Study Area, Chaffee County, Colorado U.S. GEOLOGICAL SURVEY BULLETIN 1716-C...the San Isabel National Forest, south-central Colorado: U.S. Geological Survey Bulletin 1638, p. 40-42...SOUTH-CENTRAL COLORADO Mineral Resources of the Browns Canyon Wilderness Study Area, Chaffee County, Colorado...Area, Chaffee County, Colorado. (Mineral resources of wilderness study areas South-Central Colorado; ch...Mines and mineral resources Colorado Browns Canyon Wilderness. 2. Geology Colorado Browns Canyon Wilderness |  | | Report (issue) | | Deposits of the Poncha Springs NE Quadrangle, Chaffee County,Colorado By RALPH E. VAN ALSTINE With a section... PAPER 626 Prepared in cooperation with the Colorado State Mining Industrial Development Board UNITED...Rhyolitic ash-flow tuff ______________________ _ Nathrop Volcanics _________________________ _ Browns Canyon...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 |  | | Journal (article/letter/editorial) | | COLORADO TOPAZ Topaz, Al Si0 (F,OH) is one of Colorado's better known gem minerals. Though Col orado...(PJM), 975 (TCM) Box 25046, Federal Center Denver, Colorado 80225-0046 A ccording to Cross and Hillebrand...discovery of Colorado topaz was made about 1880 by a Mr. Thiebald,* "a prospector of Colorado Springs."...area. The largest fine-quality topaz specimens in Colorado occur in several separate and distinct localities...are also referred to the general discussions of Colorado topaz in Eckel (1961) and Pearl (1963) and to |  | | Journal (article/letter/editorial) | | diameter, were received. They are hematites. One hematite pebble had a few spots of whitish quartz. ARIZONA...more. "The Glove Mine is located in Santa Cruz County, Arizona, near the little town of Amado, on the...specimen with a pleasing combination of two minerals. COLORADO — "I used to be a regular reader of R&M and a...spectacular, only good representative specimens of Colorado minerals. Half the fun is the trip anyway. No...consists solely of minerals I've found here in Colorado." — letter dated Jan. 10, I960, from Doug Graham |  | | Journal (article/letter/editorial) | | Note: Gold in Rhyolite at Nathrop, Colorado Denver Nathrop # Pueblo COLORADO DAVID E. SEAMAN 36 Winter...Winter Street Norway, Maine 04268 Ruby Mountain at Nathrop, Colorado, has been noted for many years as...while a grad uate student at the University of Colorado in 1932. That was the year of my first collecting...Arizona, New Mexico, and returning once again to the Nathrop, Colo rado site. We collected garnets and topaz...addition to observing gold with the rhyolite, hematite and pseudobrookite have also been noted; this |  | | Report (volume) | | be changed by heat treatment or dyeing. Only the ruby, sapphire, spinel, emerald, rutile, and quartz of...or two of these qualities. The diamond, emerald, ruby, and sapphire are considered precious gems. Some...canary yellow in the diamond; pigeon-blood red in the ruby; cornflower blue in the sapphire; and grass green...price of a gem stone. Such gems as the diamond and ruby are rare, in addition to being beautiful and durable...the deep redpyrope garnet closely resembles the ruby in color, there is no comparison in expense and |  | | 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...Exploring Rocks, Minerals, Fossils in Colorado America's Mountain: Pikes Peak and the Pikes Peak Region...Atlas of Colorado American Gem Trails Nature As Sculptor: A Geologic Interpretation of Colorado . Scenery |  | | Book | | Pumice 5. 3. II. 6. 7. 8. 9. 10. 11. Rhyolite Colorado Mass. Felsite (Aporhyolite) Quartz-Felsite Porphyry...Porphyry South Dakota Rhyolite Porphyry (Nevadite) Colorado Pumiceous Rhyolite 13. 14. 15. 16. 17. 18...Granite Mass. Binary Granite N. H. Binary Granite Colorado Biotite-Granite R. I. Biotite-Granite Vermont...Sanidine-Trachyte Colorado Trachyte Porphyry S. Dakota 23. Bostonite 27. 28. 29. Phonolite Colorado Leucite-Syenite...Monzonite Colorado Phonolite-Nephelite-Syenite Series: IV. V. Perlite Colorado Vitrophyre Colorado Rhyolite-Granite |  | | 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) | | 2008 Table of Contents Collecting Minerals in Colorado - Peter Modreski ...........................Pg...Mining Update .......................... Pg. 20 Colorado Fossil Woods - Frank Daniels ...................on collecting minerals in Colorado by Pete Modreski, the informative Colorado petrified wood article by...the magazine so you get your very own copy! Colorado Minerals is the theme of the 2008 Denver Gem and...from the vicinity of Pikes Peak itself, Stove Mountain and Sentinel and Specimen Rocks; Crystal Park; |  | | 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 |  | | Journal (article/letter/editorial) | | garnet from the Topopah Spring Tuff at Yucca Mountain, Nevada, USA R. J. MOSCATI* AND C. A. JOHNSON U.S...Federal Center, Box 25046, MS 963, Denver, CO 80225, USA [Received 20 January 2014; Accepted 10 April 2014;...Spring Tuff of the Paintbrush Group from Yucca Mountain, in southern Nevada. The Miocene-age Topopah Spring...cristobalite or quartz), sanidine and locally, hematite and/or garnet. Vapour-phase topaz and economic...not found in the Topopah Spring Tuff at Yucca Mountain. Based on their occurrence only in lithophysae |  | | 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? ......................................339 by M. I. Jacobson The San Juan Mountains of Colorado ..................................349 by J. A...10 cm tall, from the Yucca Hill claim, Park County, Colorado. Richard A. Kosnar specimen; photo by John...Natural History for conceiving the idea of a second Colorado issue and for helping a great deal in bringing |  | | 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 |  | | Book (edition) | | and often gems can be found. valuable For the mountain ranges and level for the ist to States contain...KYANITE LAZULITE t^^*l IDOCRASE lOLITE k:^ RUBY /^^ RUTILE SAPPHIRE 1^ TOURMALINE CRYSTALS ...malachite, an ore of the heavy metal copper, or hematite, an ore of iron, will be heavy in the hand. a...the mother rock. In general, the United States mountain them. is divided geologically into the areas...the east and west, and the plains between The mountain regions in the east from Maine down through |  | | Report (volume) | | 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...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton;...following localities: Bibb County, Pratts Ferry; Calhoun County, near Tampa; Clay County, T. 20, Pv. 7 E.; Jefferson...Jefferson County, at Elyton; Lee County, at Chewacla lime works; St. Clair County, at Gfeensport; Shelby |  | | Journal (article/letter/editorial) | | Although Colorado may be most noted for rhodochrosite or amazonite, the many varieties and associations...a k e w o o d , Colorado 80225 DIANNE L. K I L E 333 S a l e m Street Aurora, Colorado 80011 C O L O...above sea level; with more than eight hundred mountain peaks exceed ing 11,000 feet, the average elevation...and J. A. Mur phy for an update to Minerals of Colorado: A 100-Year Record (Eckel, 1961). 374 ROCKS... Quartz was a familiar gemstone to many early Colorado residents, as documented by an extensive body |  | | Report (issue) | | Denver, Colorado, USA © 2011 by Lithographie, LLC P.O. Box 11613 • Denver, CO 80211 • USA Phone 1.303...Topaz ALFREDO PETROV & JOHN RAKOVAN 34. Colorful Colorado DAVID W. BUNK 42. Mongolian Topaz: The Gorkhi...and quartz, 5.3 cm tall Sawtooth Mountains, Boise County, Idaho shown under longwave ultraviolet light (left)...Province, Afghanistan; San Diego County, California, and Thomas Range, Utah, USA Associated Species: In topaz...rhyolites: pseudobrookite, bixbyite, red beryl, hematite, and quartz. In pegmatites: microcline, zinnwaldite |  | | Journal (issue) | | - - - - - - - - - - - Mineral Collections 1n Colorado A Supplement to The Mineralogical Record November-December..."Smithsonian packet," Smoky Hawk claim, Florissant, Colorado. Collected in 2008; Dorris Family collection;...certificates for mines in the Cripple Creek District, Colorado, in 1898 and 1901. Sponsorship: This special supplement...Collecting in Colorado The Collections: Mel & Pam Bersch Ryan Bowling Ralph Clark Colorado School of Mines...Thompson George Witters Martin Zinn III and Colorado in the :Mineralogical Record Supplement to The |  | | 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; |  | | Book (volume) | | SOUTHWESTERN QUADRANT Arizona, Arkansas, California, Colorado, Louisiana, Nevada, New Mexico, Oklahoma, Texas...Southwestern Quadrant Arizoni, Arkansas, California, Colorado, Louisicna, Nevada, New Mexico, Oklahoma, Texas...Location Numbers Arizona Arkansas California Colorado 258 Louis B30 ana HOW TO USE THIS BOOK...volumes, through very precise directions and accurate county maps, to get you to the best and most accessible...for the county in which it is located. This site number also appears under the given county in the text |  | | Book | | oxygen form the minerals ruby and sapphire. The pigeon-blood red of the ruby is thought to result from...magnetite, zircon, gold, platinum, topaz, beryl, ruby and sapphire. One important rock in this group is...are often found associated an abundance of hematite. Hematite 10 FINDING AND PREPARING PRECIOUS AND...became iron oxide, or hematite. Water plays an important part in this process and hematite is oftep found in...desires. Sometimes the talus slopes at the base of a mountain contain rich indications of a dike or sill above |  | | Journal (issue) | | Colorado Springs Mineralogical Society Founded in 1936 Lazard Cahn Honorary President February 2020...of the Western Museum of Mining & Industry in Colorado Springs. He is currently working on a study of...gold mines. COLORADO SPRINGS MINERALOGICAL SOCIETY PO BOX 2 COLORADO SPRINGS, COLORADO 80901-0002 February...Denver Mining Club weekly meeting, Martin Palkovic, Colorado Geological Survey, Cretaceous Sedimentary Bedrock...ReturnFlows to the Arkansas River, Southeastern Colorado. Golden Corral Buffet & Grill, 3677 South Santa |  | | Journal (issue) | | Menzies Pink topaz from the Thomas Range, Juab County, U ta h .........................................to Uli c/o Martin Zinn, P.O. Box 2433, Evergree Colorado 80439. I The Mineralogical Record, volume 26,...Chilon, Nerchinsk district, Siberia. 12 = Nathrop, Colorado. 6 The Mineralogical Record, volume 26, January-February...unique belt of rhyolites that extends from Utah and Colorado into Mexico, along the southern section of a m...These span both sides of the Colorado Plateau, mainly in Utah and Colorado. Typically they have extruded |  | | Report (issue) | | Connecticut, USA © 2008 by Lithographie, LLC P.O. Box 263 • East Hampton, CT 06424 • USA Phone 1.860...guy in the series. This 3.3 cm tall andradite on hematite is from the Wessels Mine near Hotazel in northern...diopside; 7.1 cm tall Jeffrey Mine, Asbestos, Richmond County, Quebec, Canada Paul Stahl specimen Jeff Scovil...a/bite from the Little Three Mine in San Diego County, California; 6. 6 cm tall; Bryant Harris specimen...from the deposits around Emerald Creek in Latah County, Idaho, is brought about by inclusions of microscopic |
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Ruby Mountain, Nathrop, Chaffee County, Colorado, USA