 | | Journal (article/letter/editorial) | | December 2012 Flgun 1. View from the summit of Pika Peak looking northwest acro88 the cliff’s of Glen Cove...northeasterly-trending continentul Figure 2. Geologic map of the Colorado Front Range showing the Precambrian metamorphic...formbasin was established in the southeril Pikes Peak Batholith. Adapted by the author from Reed, Bickford...Karistrom 1978; Lanthier 1978). Farther south in Colorado, sediments accumulated in decper-water rocks formed...Survey into “Early, Middle, and Late” Eras. In Colorado we because of the subsequent folding and overthrusting |  | | Journal (article/letter/editorial) | | MINERALOGY OF THE MOUNT ROSA AREA, EL PASO AND TELLER COUNTIES, COLORADO. II. PEGMATITESI EuceNB B. Gnoss, CaliJornia...the Pikes Peak granite and in related alkalic granites in the Mount Rosa area, west of Colorado Springs...Springs. One is the older calc-alkalic Pikes Peak type; the younger is the alkalic Mount Rosa type. The accessory...of radioactive zircon, fluorite, astrophyllite, thorite, and lesser amounts of pyrochlore, rutile, niobian...aluminofluorides. These dikes intrude both the Pikes Peak and its derivative fayaiite granites along northeast-trending |  | | Journal (article/letter/editorial) | | Root Pocket, Two Point claim, Pikes Peak batholith, Teller County. The Collector’s Edge specimen, Jeff...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 |  | | 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) | | DESIRED PLEASE SEND THEM I N . Abbreviation*: xl—crystal xled—crystallized fl—fluoresces ARIZONA — The...other. Wynne, in southern Cross County, is in eastern Arkansas. COLORADO—A loose but beautiful bright green...green amazonstone (amazonite) crystal was sent in by Crystal Gallery, 20 South Garrison, Linwood, Colo...listed in our December R&M ad." —note with the crystal. To add to its attractiveness the crysinch tal..."Amazonite. Crystal Peak, Florissant, Teller Co., Colo."—on label. Florissant, in western Teller Co., is |  | | Journal (article/letter/editorial) | | mineral species; all crystallizing in the isometric crystal system. They are found in igneous and metamorphic...trapezohedral crystals or else the trapezohedral crystal faces are the ones most prominently developed.... A large, nine pound, six ounce trapezohedral crystal of almandite was recovered at 35th Street and Broadway...Natural History mineral collection. An even larger crystal nearly nine inches in diameter, a combination of...in North Carolina. A large nine inch diameter crystal was found in the Pulsifer quarry at Auburn, Maine |  | | Journal (article/letter/editorial) | | is in the Bement collection from Florissant, Colorado (Hiestand, 1887), and from Barringer Hill, Texas...Tavetsch, and Val Giuf, Switzerland. One very large crystal of this mineral, about an inch in diameter and...transparent crystals from several localities in Alexander County, North Carolina. Some excellent large monazite...occurs as a large, single, hexagonal pyramidal crystal about J/2xlV^ inches on a matrix of calcite. It...represented by only one specimen from Lewis and Clark County, Montana. The well known dealer, Lazard Cahn, supplied |  | | Journal (issue) | | R. Kampf Natural History Museum of Los Angeles County George Robinson National Museums of Canada Arthur...............................203 R. Barnes Pikes Peak Granite......................................217...SPECIMENS from the collection of the Geology Museum, Colorado School of Mines. See page 242 for a full description... All rights reserved. notes fromthej EDITOR COLORADO-III Here we are with our third special issue devoted...devoted to the mines and minerals of Colorado. As most long-time subscribers know, the first in the series |  | | Journal (article/letter/editorial) | | MICHAEL J. GOBLA 19055 East Bethany Place Aurora, Colorado 80013 gobla@copper.net Unless otherwise noted...Indian Queen mine ca. 1905 at Farlin, Beaverhead County. 208 ROCKS & MINERALS Downloaded by [University...Silver Bow County and the Black Pine mine in Granite County have produced many fine crystal specimens...field collector, Crystal Park in Beaverhead County, the pegmatites of Jefferson County, and the Snowbird...Snowbird mine in Mineral County continue to be productive sources of mineral specimens. The Montana Gold Rush |  | | 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? ......................................of Colorado ..................................349 by J. A. Murphy Amazonite from the Pikes Peak batholith...10 cm tall, from the Yucca Hill claim, Park County, Colorado. Richard A. Kosnar specimen; photo by John...invaluable reference which should provide us with crystal draw ings to illustrate articles for centuries |  | | 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...Minerals, Fossils in Colorado America's Mountain: Pikes Peak and the Pikes Peak Region Seven Keys to...Atlas of Colorado American Gem Trails Nature As Sculptor: A Geologic Interpretation of Colorado . Scenery |  | 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). |  | | Book (edition) | | formula, allegiance to a mineral group, symmetry and crystal structure as well as the strongest X-ray powder...and opaque minerals. More attention is paid to crystal habit or aggregate development and their sizes...species must contain chemical formula, structure (crystal system, space group, and unit cell dimensions)...units (A), expressed differently according to the crystal system: only a for the cubic system, a,c for the...specifying the orientation of the crystal faces in relation to the crystal axes, a set of three or four numbers |  | | Journal (issue) | | Menzies Pink topaz from the Thomas Range, Juab County, U ta h .........................................check out this new way of selecting purchases. Crystal Models Anyone who has ever tried to study crystallography...that the process is much easier if you have goo crystal models to play with. Rene Just Haiiy (1743-1822)...collectibles today. Among the more recent producers of crystal model sets was tl German mineralogist Paul Heinrich...Burchard has produced a book < computer-generated crystal drawings and supportive data relating the original |  | | Report (issue) | | Prepared in cooperation with the Colorado Geological Survey for the United States Department of Agriculture...Service Development of Industrial Minerals in Colorado Circular 1368 U.S. Department of the Interior...Survey Development of Industrial Minerals in Colorado By Belinda F. Arbogast, Daniel H. Knepper, William...John S. Dersch Prepared in cooperation with the Colorado Geological Survey for the United States Department..., 2011, Development of industrial minerals in Colorado: U.S. Geological Survey Circular 1368, 87 p. Library |  | | Journal (issue) | | mine near Magdalena, Sonora, Mexico. The large crystal is 28 mm across. Collection of Gerhard Becker;...Lesnick, The Lesnicks (Wantagh, NY) Jack Lowell, Colorado Gem and Mineral (Tempe, AZ) Nathan and Gloria...Enchanted Mesa Minerals (Belen, NM) Paul Otto, Crystal Showcase (Albuquerque, NM) Pala Properties International...Graeber, et al. (Fallbrook, CA) Tom and Gale Palmer, Crystal Cavern Minerals (El Paso, TX) The Mineralogical...Cripple Creek, Colorado Sweet Home mine, Alma, Colorado Crystal Peak area, Crystal Peak, Colorado Bulldog/Commodore |  | | 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 (issue) | | Cover 3. Diamond. Curve faced rhombododecahedral crystal (7 mm). Specimen 19 from collection of Almazy ...Bogomolov. Cover 4. Marialite. Kukurt, EPamirs. Large crystal 5cm MIL Specimen: A.M. Skrigitil'. Photo: M. Leybov...animals "[3]. Ontogenic point of view. A growing crystal is a system, and, although not living, it is self-organizing...From the ontogenic point of view each natural crystal is considered a separate specient of the mineral...and dendrites? From what moment does a splitted crystal cease to be Nate: "- St. Petersburg University |  | | Book | | formulae. General properties. Here the mineral’s crystal system—the basic arrangement of its atoms—is specified...ALLOYS Silver Ag Silver is a member of the cubic crystal system but crystals are rare, the mineral occurring...states of Guanajuato and Chihuahua, Mexico. In the USA silver occurs at Keweenaw, Michigan, in association...copper ores, and at Butte, Montana, as well as Colorado, Arizona and Idaho. In Canada it occurs at Cobalt...Above: Copper from Lake Superior. Michigan. This crystal shows the enlarged faces of the rhombic dodecahedron |  | | 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) | | Museum (Historical Geology) Richard M. Pearl, Colorado College (Mineralogy) Kenneth Ross, Field Director...Director, Explore’s Camp, Mesa Verde, Colorado (Archeology) Arnold Goodman, Boston University (Microscopical...DIGEST Vol. Il JUNE - 1948 No. 9 Contents Colorado Mineral Localities. . The American Federation...the 13th to the 16th of this month at Denver, Colorado. For the first time, earth scientists, both amateur...PLAISTOW, NEW HAMPSHIRE THE COLORADO EARTH SCIENCE MINERAL RICHARD Colorado Climax Molybdenum Mine |  | | Book | | the University of Colorado and I-Iarvard University, is Professor of Geology at Colorado College. The author...Federation of Mineralogical Societies, and the Colorado Mineral Society. He has collected and prospected... A bruised or scratched specimen, or a broken crystal, has little to recommend it, and a mineral of unknown...unnecessary amount of waste rock adhering, or part of a crystal or crystals may be covered up by the matrix. This...Four-drawer cabinet for storage of smaller mineral, crystal, and rock specimens. Many specimens can be stored | | | Book | | the University of Colorado and Harvard University, is Professor of Geology at Colorado College. The author... A bruised or scratched specimen, or a broken crystal, has little to recommend it, and a mineral of un¬...unnecessary amount of waste rock adhering, or part of a crystal or crystals may be covered up by the matrix. This...Four-drawer cabinet for storage of smaller mineral, crystal, and rock speci¬ mens. Many specimens can be stored...requiring only a familiarity with their appearance (crystal form or habit) and their other properties (such | | | Book | | the University of Colorado and Harvard University, is Professor of Geology at Colorado College. The author...lecturer to both as Rocky Mountain Federaand the Colorado Mineral Society. eration of Mineralogical Societies...of the specimens tion concerning them. broken crystal, known locality or and on the completeness ...unnecessary amount of waste rock adhering, or part of a crystal or crystals may be covered up by the matrix. This...Four-drawer cabinet for storage of smaller mineral, crystal, and rock specimens. Many specimens can be stored |
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