 | | Report (issue) | | UNDERGROUND WATERS OF THE ARKANSAS VALLEY IN EASTERN COLORADO BY , 2ST-. H- WASHINGTON GOVERNMENT PRINTING...UNDERGROUND WATERS OF THE ARKANSAS VALLEY IN EASTERN COLORADO BY , 2ST-. H- WASHINGTON GOVERNMENT PRINTING...Glaciation of the Yellowstone Valley north of the Park, by W. H. Weed. 189S. 41 pp., 4 pis. B 108. A geological...27 pis. B 159. The geology of eastern Berkshire County, Massachusetts, by B. K. Emerson. 1899. 139 pp...Geology and petrography of Crater Lake National Park, by J. S. Diller and H. B. Patton. 1902. 167 pp |  | | Journal (issue) | | informative mineral features". The authors describe quartz, feldspar, mica and others in terms of what the...Huizing, 534 I Thrasher Dr, Cincinnati OH 45247 USA Please, make checks payable to Mineralogical Almanac...encourage your submissions. James D. Endicott: Colorado Gem Miner Mark Ivan Jacobson I 08 Farmington Drive...Pearl lPearl I 95 I, p. 15) in his classic, ·'Colorado Gem Trails;' stated that '·no name appears more...history of Colorado gem mining. In 1907, Endicott discoYered amazon stone in Custer County, aquamarine |  | | Journal (article/letter/editorial) | | normal fault in the railroad cut near Yardley, Bucks county, Pa., had seeming importance from a mistake, through...fault rock of the Chalfont railroad cut, Bucks county, Pa., formerly supposed to fill confusedly a fault...square miles. including portions of Gallatin and Park counties, and the town of Livingston is within its...area. It enters the district from the Yellowstone Park about the middle of the southern border, flows northwest...with sandstone and some shale. Over this is the Colorado group, including Benton shales and Niobrara limestone |  | | Journal (article/letter/editorial) | | PEGMATITES OF EIGHT MILE PARK, FREMONT COUNTY, COLORADOXT E. Wrrr. HerNnrcu, Department of Mineralogy...Mile Park pegmatite district, three to twelve miles west of Canon City, Fremont County, Colorado, includes...separate paper. 420 PEGMATITES OF EIGHT MILE PARK, COLORADO 42r area are flanked on the east by hogbacks...in swarms. They contain microcline, oligoclase, quartz) muscovite, biotite, and schorl. Nbt uncommonly...pegmatites and geology of Eight Mile Park, Fremont County, Colorado. ft is an attempt to interrelate the |  | | 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) | | Although Colorado may be most noted for rhodochrosite or amazonite, the many varieties and associations...associations of quartz found throughout the state rank it as one of the premier worldwide localities for that...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...for about 750 known mineral species.* Of these, quartz is one of the most desirable from a collector's...to Minerals of Colorado: A 100-Year Record (Eckel, 1961). 374 ROCKS & MINERALS Quartz was a familiar |  | | 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) | | Colorado Springs Mineralogical Society Founded in 1936 October 2013 PICK&PACK Vol 53 . Number 08 CSMS...Willis was one of the founding members of the Colorado Springs Mineralogical Society. His micro-mineral...More Pictures on Page 3 COLORADO SPRINGS MINERALOGICAL SOCIETY PO BOX 2 COLORADO September 2013 PICK SPRINGS...Senior Center is located at 1514 North Hancock in Colorado Springs. For more information on any of the sub-groups...meeting of the Denver Gem and Mineral Guild; at the Colorado School of Mines Geology Museum, Conference Room |  | | 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) | | of &lontana, including portions of Gallatin and Park counties, and the town of Livingston is within its...enters the district from the Yellowstone SCIENCE. Park about the middle of the southern border, flows northwest...with sandstone and some shale. Over this is the Colorado group, including Benton shales and Niobrara limestone...vicinity of Placerville. Many and important auriferous quartz veins are found in the area. The principal ones...Pleistocene gravels are still worked. Auriferous quartz veins have been extensively 718 XCIENCE. worked |  | | Book (edition) | | gem stones mon dull are as hard or harder than quartz, a com- mineral everywhere present as dust which...Hardness Scale 6. Orthoclase 1. Talc 2. Gypsum 7. Quartz Topaz Corundum 10. Diamond 3. Colcite 8. 4...Your will scratch orthoclase feldspar but not quartz. In making hardness appears to be a scratch paper...the general arrange- ment of these surfaces. Quartz and amethyst, for example, are frequently crystallized...SPODUMENE DANBURITE DATOLITE GARNET FLUORITE QUARTZ CRYSTALS SPINEL STAUROLITE •^^ VESUVIANITE |  | | Report (volume) | | the ruby, sapphire, spinel, emerald, rutile, and quartz of gem quality have been synthesized. The best...Fluorite Apatite . 6. 7. 8. 9. 10. Orthoclase Quartz Topaz Corundum Diamond The numbers preceding each...of silica (quartz, 7 on Moh's scale) particles, a gem stone should be harder than quartz. Some minerals...react to heat are: violet quartz (amethyst) changing to orange brown, smoky quartz to yellow, pale-green...sapphire, star sapphire, star ruby, rutile, and quartz are gem stones that have been successfully synthesized |  | | Journal (issue) | | ......................................... 136 COLORADO PLATEAU PROGRAM. By John K . G11stafso11 .:.....Frank H . lf1/askey ............ 140 GEODES AT GARDEN PARK, COLO. By Glenn R. Seo// ......................PROSPECT PARK, N . J. By T . Orchard Lisle .................. 158 AEC OFFICIAI.S Discuss COLORADO PLATEAU...pay a flat rate per day for the use of the roof garden and tables (which will be furnished by the hotel)...Superior Oil Co. contends is the deepest Caddo county, Okla. (See Rocks and ""ell in the world is sti |  | | Report (issue) | | DIRECTOR C MIONIFEROUS FORMATIONS AND FAUNAS OF COLORADO BY GEORGE H. G-IIITT-Y. WASHINGTON GOVERNMENT...meridian 76° 30', from Tompkins County, New York, to Bradford County, Pennsylvania, by H. S. Williams...33 pp. B 16. Higher Devonian faunas of Ontario County, New York, by J. M. Clarke. 1885. 86 pp., 3 pls... Colo., and other points in the Tertiaries of Colorado and Utah, by S. H. Scudder. 1892. 35 pp., 3 pls...by F. H. Knowlton. 1893. 68 pp., 6 pls. B 106. Colorado formation and its invertebrate fauna, by T. W |  | | Journal (article/letter/editorial) | | FORMATION IN THE MANITOU REGION, COLORADO ON GEORGE I. FINLAY Colorado Springs, Colo. The Paleozoic section...section to the east of Pike's Peak, Colorado, in the Manitou region is composed of four members, as follows:...Cambrian is an II-foot band of white, fine-grained quartz feldspar sandstone. The succeeding layers going...anywhere along the Front Range in Colorado. The Harding sandstone and the Fremont limestone of Ordovician age...similar to the Millsap of the type locality in Garden Park, described by Dr. Whitman Cross. In the Manitou |  | | Journal (issue) | | Colorado Springs Mineralogical Society Founded in 1936 Lazard Cahn Honorary President December 2016...Classifieds Pg 13 COLORADO SPRINGS MINERALOGICAL SOCIETY PO BOX 2 COLORADO SPRINGS, COLORADO 80901-0002 December...Senior Center is located at 1514 North Hancock in Colorado Springs. For more information on any of the sub-groups...Fossil Collecting, At Pueblo Community College - Fremont Campus, 51320 Highway 50, Cañon City. Doors open...information. Thurs., Dec. 1, 7:00 p.m., Friends of the Colorado School of Mines Geology Museum, “First Thursday” |  | | 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 |  | | 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 |  | Collins, Donley S., Cobban, Robert R., Foord, Eugene E., Murphy, Jack A. (1989) Bibliography for update and revision of U.S.G.S. Bulletin 1114, Minerals of Colorado -- a 100 year record, by Edwin B. Eckel, Part A - Paper copy --Bibliography data file disks. Open-File Report Vol. 1989 (89-206) US Geological Survey doi:10.3133/ofr89206a | Report (issue) | | Survey Denver, Colorado Department of Geology, Denver Museum of Natural History Denver, Colorado NOTE FOR...revision of U.S.G.S. Bulletin 1114, Minerals of Colorado A 100 year record, by Edwin B. Eckel By Donley...Prepared in cooperation with Friends of Mineralogy - Colorado Chaptar, and the Denver Museum of Natural History...references dealing with the mineralogy of the state of Colorado. It is part of a more than 10 year effort to update...and revise U.S.G.S. Bulletin 1114, Minerals of Colorado: A 100 year record, by Edwin B. Eckel (1961). |  | | Report (volume) | | Deposits of minerals of wide distribution, such as quartz and calcite, have been omitted, except those that...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 |  | | Report (chapter) | | structure of the Front Range and Wet Mountains, Colorado, based on apatitefissiontrack thermochronology...deformation, in the Front Range and Wet Mountains of Colorado. AFT cooling ages are also used to estimate the...of the southern Front Range between Golden and Colorado Springs are from 100 to 270 Ma, and the mean track...and Von Bibber Canyons, just north of Golden, Colorado. To the south, eastverging thrusts and > 100...thermal effects of pluton emplacement along the Colorado Mineral Belt during Laramide deformation and in |  | | Report (volume) | | ............................................. Colorado.................................................of minerals that are widely distributed, such as quartz and calcite, have been omitted, except those that...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 |  | | Book (edition) | | describes sites under of the nearest town and county. and the many maps included book contain such...4B^ Diamond M Tourmaline ^P Ruby. Sapphire O Quartz crystal ^J^ Garnet __ Azurite, Malachite, Chrysocolla...with respect to one another. gem minerals The quartz gems, such as amethyst, form crystal prisms with...another at 60 degrees and intersected by a fourth Quartz and vertical axis at right angles to the other...other, light) FELDSPAR TWINS I J PHENACITE QUARTZ CRYSTALS ffrl (^h /&> ^& \b^ ^ VESUVIANITE |  | | Report (issue) | | ... Paleozoic and Mesozoic geology of eastern Colorado ......................................... , 65................................................ Fremont limestone........................................CONTENTS. Paleozoic and Mesozoic geology of eastern Colorado Continued. Page. Stratigraphy Continued. Cretaceous...Aurora County ....................................................................... Beadle County.......Bonhomme County ................................................................... Brookings County .... |  | | Report (issue) | | ALONG THE FRONT RANGE FROM DENVER TO BOULDER, COLORADO Clay Minerals Society 39th Annual Meeting and...Geological Survey Open-File Report 02-413 Denver, Colorado 2002 U.S. DEPARTMENT OF THE INTERIOR GALE A........................ 11 The clay industry in Colorado ..................................... 13 Rubey....................................... 44 Genesee Park overlook ....................................................... 67 Nederland; mining in Boulder County .............................. 67 Boulder Canyon |
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