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| 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."...have been in the Crystal Park area. The largest fine-quality topaz specimens in Colorado occur in several...within the large (1,080 mi ) and well-exposed Pikes Peak batholith. The batholith, slightly more than 1 billion |
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| 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...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...body of literature. The first published list of Colorado mineral localities (in cluding quartz) was included |
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| Littleton, Colorado 80125 dkile4@comcast.net Albite and Microcline From the Crystal Peak Area Teller County...County, Colorado A MYSTERY REVISITED F or many years collectors have recovered microcline and albite...specimens from various localities within the Pikes Peak batholith that had unusual irregular hexagonal holes...biotite/Fe-zinnwaldite crystal from the Crystal Peak area, Teller County, Colorado; this crystal was enclosed in...Ten-Percenter claim in the Crystal Peak area north of Florissant in Teller County, Colorado. The contents of this |
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| 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 |
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| the summit of Pika Peak looking northwest acro88 the cliff’s of Glen Cove to South Park and the Tarryall...Ihe Pikn P c i l Balhdilh dates for rocks in this area rnngc from I .7 to I .8 billion years. The zone...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 |
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| — _ ; COLORADO GEM TRAILS AND MINERAL GUIDE ! ■ : ' BOOKS BY RICHARD M. PEARL Colorado Gem Trails...Mineral Guide Colorado Rocks, Minerals, Fossils America’s Mountain: Pikes Peak and the Pikes Peak Region American...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 |
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| Microminerals from Pegmatites in the Pikes Peak Batholith, Central Colorado Daniel E. Kile Research Associate...Nature & Science 5176 Black Bear Run - Littleton, Colorado 801215 Email: centennial87@comcast.net were sparse...of localities throughout the Pikes Peak batholith in central Colorado, and many of them provide spectacular...found in pegmatites in the Pikes Peak batholith (PPB) in central Colorado. Although some minerals, such...be a compilation of all the known species in the area, but rather a portfolio of some of the more interesting |
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| 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 |
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| ...........................................59 Colorado ...............................................................548 Table of Maps Page Alabama County Map ...................................................................................4 Alaska County and Stream Map ......................................................................22 Arizona County Map ........................................................33 Arizona – Maricopa Co. Morristown area Site Map ...................................... |
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| ...........................................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 |
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| ...........................................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 |
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| EARTH’S TREASURES • MINERALS AND JEWELRY PIKES PEAK MINERALS A Museum Display R&G KIDS Fossil Sand...Collectors CAMEOS Ancient and Contemporary Carvings CRYSTAL SKULLS Modern Art or Genuine Artifacts? www.rockngem...STAINLESS STEEL CABBING UNIT This machine is made in the USA for Kingsley North. Features an all stainless steel...displays in the Pikes Peak Historical Society Museum, in Florissant, Colorado, include the area’s minerals...fluorite is from a claim near Crystal Park, Colorado, at the base of Pikes Peak. (Jeff Scovil photo/ Collector’s |
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| 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 chromium can substitute for aluminum in the crystal structure. Ideal "fluortopaz" (Al2SiO4F2) would...lighter and larger than fluorine. Crystals and Crystal Structure Crystals are orthorhombic and are typically...dipyramidal with point group symmetry 2/m 2/m 2/m. Crystal structure consists of layers of oxygen, fluorine |
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| 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 |
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| England Richard C. Erd U.S. Geological Survey Menlo Park, CA Donald R. Peacor University of Michigan Ann...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 |
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| 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 |
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| Associate Professor Lamar University HIGHLAND PARK QE 365 T37 1973 _ Photographs by Werner Lieber...1973 Published by Sterling Publishing Co, Inc. 419 Park Avenue South, New York 10016 British edition published...that is, chemical formula, physical properties, crystal system, and most important to you as a collector...which we cannot possibly deal with at length here— crystal structure. Crystallography is a whole sub¬ division...the mineral as well as to reveal characteristic crystal shapes and forms. | The atoms making up minerals |
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| Published by Sterling Publishing Co, Inc. 419 Park Avenue South, New York 10016 British edition published...is, chemical formula, physical properties, crystal system, and most important to you as a collector...which we cannot possibly deal with at length here— crystal structure. CrysraLLoGRAPHy is a whole sub- division...property material Merely to develop a solid crystal body, into crystals. often which which What...What displaying gives each allows the is a crystal? plane natural surfaces called faces, which reflect |
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| Nature & Science 5176 Black Bear Run Littleton, Colorado 801215 Email: centennial87@comcast.net texture...a rare hydrous iron oxalate in the monoclinic crystal system, Fe2+(C2O4) ·2H2O. It was named after Friedrich...California (or those identically named in Nevada, Colorado etc.), the series of adits and stopes collectively...today and lies within the Soda Mountains Wilderness area, sporting eight different collecting areas consisting...hikes. The various collecting sites are within an area of perhaps 3 acres and are under BLM management |
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| on Amazonite 7.5 cm, from the Smoky Hawk claim, Colorado. Collected by the Dorris family; Tom Spann photo...Bacher; Reinhold Bacher photo. Fluorapatite, 3.3-cm crystal, from the Pulsifer quarry, Maine. Collected by...own favorite experiences is gazing raptly into a crystal pocket just after it has been opened, and all the...classic locality for spectacularly large apophyllite crystal clusters, which still rank as some of the largest...June a heavy rain revealed that this mineralized area contained prehnite balls (exceeding 1 inch in diameter) |
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| Boots on the ground in the Black Hills Rockhound Area. By Bill Rozday 20 Find jagged quartz crystals...Parting Shot...................... 82 Part II: Peak production came at a steep price. By Bob Jones Find...Wulfenite from the Red Cloud (photo credit)mine (La Paz County), Arizona, is world famous. (3.9 cm high) Jeff...in quantity. Arizona’s colorful lead molybdate crystal groups are familiar to every serious mineral collector...making amazing finds of topaz in the Pikes Peak area of Colorado and superb nodules of variscite near Fairfield |
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| .PEBBLE PEDDLER 100 NORTH LAKE PARK BOTTINEAU, NORTH DAKOTA 58318 (701) 263-4948 E-Mail: ppeddler@metigoshe...ASSOC/A TIONS: Finch Mine (AKA Barking Spider), Pinal County, Arizona: Very nice combinations which may have...00 each GLOVE WULFENITE: Glove Mine, Santa Cruz County, Arizona: Very nice crystalline specimens with...Tucson Mountains, Pima County, Arizona: Butterscotch to deep orange-red crystal inch plastic perky boxes:...1/4 79 WULFENITE: 79 Mine, Banner District, Gila County, Arizo _na: Transparent bright yellow crystals |
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| information b Book review c Crystal morphology information d Crystal drawing ff Continues on following...193-256 137-208 129-192 209-264 193-256 [ [ COLORADO-Ill] 177-256 121-184 89-168 1-120 1-88 [ ...177-256 185-280 169-248 [ 425-528 337--400 COLORADO-II] 321--400 337--400 ARIZONA-Ill] 337--400...69-132 65-128 1-64 11 / 1980 20 I 1989 [ COLORADO-I] [ 289-352 385-448 [ AUSTRALlA] 353-504...Iaria from the Howard-Montgomery quarry, Howard County, Maryland (by J. S. White) 25:53-54 AFGHANISTAN |
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| Petrified Forest Trails Arizona Gem Trails and the Colorado Desert of California High Tension (A Biography)...\merica Alabama Alaska Arkansas Arizona California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho...archaeologists working in the remote Lake Rudolf area of Africa's Kenya found shaped stone implements...chert, flint, jasp-agate, jasper, quartzite, rock crystal, amethyst, chrysoprase, opal, etc.), serpentine...clear red carnelian, purple amethyst, and rock crystal-all mounted in heavy gold settings that were further |
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| Museum of Nature and Science 2001 Colorado Boulevard Denver, Colorado 80205-5798 jmurphy @ dmns.org PETER...Survey MS 150, Box 25046 Federal Center Denver, Colorado 80225-0046 pmodresk @ usgs.gov Unless otherwise...to 2000) J oin us for a gemstone tour around Colorado! Our field trip takes us from east to west in...in the same way you may have toured through Colorado on a mineral collecting trip. This route, from the...gemstones are known to occur. We cannot discuss every Colorado gemstone occurrence; rather, this is a general |
