 | | Journal (article/letter/editorial) | | IVAN JACOBSON 1714 S. Clarkson Street Denver, Colorado 80210 markivanjacobson@gmail.com No pegmatite...cube of fluorite hanging from a crystal face or nestled on a crystal druse. Figure 2. Index map showing...Granite, near Red Stone quarry, Conway, Carroll County, New Hampshire. Henry Minot specimen and photo...significance Crystal Peak, Teller and Park counties, CO, USA Crystal Park–Bear Creek, El Paso County, CO, USA...USA Pikes Peak Granite NYF Miarolitic topaz, amazonite, phenakite Pikes Peak Granite NYF Miarolitic |  | | 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) | | University Auburn, Alabama 36849 cookrob@auburn.edu Phenakite Downloaded by [University of Tennessee, Knoxville]...04:13 19 December 2014 Mount Antero, Chaffee County, Colorado A s virtually every collector knows, many...and some districts, such as those in San Diego County, California, and many of those in Minas Gerais...rarer topaz, garnet, and phenakite specimens. Perhaps America’s best-known phenakite occurrence, and certainly...aquamarine localities, Mount Antero, Chaffee County, Colorado, was highlighted by Jacobson and Lees (2008) |  | | 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 |  | | 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."...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 |  | | Journal (issue) | | Gold Mines Middle Buttes Volcanic Complex Kern County, California Allan R. Blaske allan.blaske@gmail...volcanic complex is located in southeastern Kern County, approximately 9 miles southwest of the town of...Gold Mines, Middle Buttes Volcanic Complex, Kem County, California, Mineral News, Vol. 34, No. 4, April...dome-hosted epithennal precious metal deposit, Kern County, California: Unpub. M.Sc. thesis, Michigan Tech... L., and Brady, J, 1990, Cactus Gold Mine, Kem County, California, California Geology, April 1990, p |  | | Journal (article/letter/editorial) | | Variety Amazonite Yucca Hill Prospect, Park County, Colorado T H I S I S S U E ' S C O N N O I S S E U...bodies, such as Col orado's Pikes Peak Batholith and the Harney Peak Granite in the Black Hills of South...district, California; the general Pikes Peak area of Colorado; gem pegmatites of the New England states;...the Pikes Peak region of Colorado and include sites in Douglas, E l Paso, Park, and Teller counties.... A review of the more im portant Colorado amazonite localities is given by Eckel (1961), and a complete |  | | Book (edition) | | — _ ; 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 |  | | 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 |  | | Journal (article/letter/editorial) | | 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 |  | | 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 |  | | Journal (issue) | | Barnes Whitmore Operator of the Crystal Peak Gem Mines, Teller, Colorado Mark Ivan Jacobson markivanjacobson@gmail...Whitmore is remembered in Colorado as the owner and operator of the Crystal Peak Gem Company, which distributed...distributed uncounted crystal specimens of amazonite - a blue-green colored microcline, and smoky quartz...final hospitalization in 1938. The less than 50 Crystal Peak Gem Company stock certificates that are known...various times in Ohio, Iowa and Illinois. Moving to Colorado In July 1875 Albert Whitmore at the age of 21 |  | | 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 |  | | Journal (issue) | | 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...cleaned off the thaumasite to expose the entire crystal. It is free of damage thanks to the protective |  | | 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 (issue) | | CHAPTER REPRESENTATIVES (ALSO BOARD MEMBERS) COLORADO CHAPTER: Jeff Self; selfawareminerals@gmail.com...tourmaline mining at the Himalaya mine, San Diego County, is rife with conflicts by men who truly believed...sold, with mailing postage prepaid to continental USA addresses at $15 per copy. Requests for purchase...Awards at the Denver Gem and Mineral Show, Denver, Colorado September 15-17, 2017 Two educational awards,...to the Western Museum of Mining and Industry, Colorado Springs for their eleven cases with the theme |  | | Journal (issue) | | in South Dakota (see figure 2). and one large crystal from this de osit roduced 37 tons of marketable...contrast to chemistry, all other secondary data (crystal, physical and optical properties) are comparatively...for their creation The second two have different crystal systems, orthorhombic and triclinic respectively...for a mineral to express itself through multiple crystal systems and further to permit variation of cell...rarely hexagonally? Calcium carbonate regardless of crystal form is still calcium carbonate. But than, what |  | | 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 |  | | 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 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 |  | | Journal (article/letter/editorial) | | inch on edge, from the Henderson mine, Clear Creek County. Figure 2 (right). Green fluorite encrusted with...Wilderness area near Columbine Lake, La Plata County; largest crystal measures 1.25 inches on edge; collected... FLUORITE BARBARA L. MUNTYAN Ouray County Museum Ouray, Colorado 81427 Mineral photographs by John R...locations in Mexico; in Elmwood, Smith County, Tennessee, and in Hardin County, Illinois, in the United States;...eastern Russia. It also occurs in many localities in Colorado, where it is found in colors ranging from pale |  | | Journal (article/letter/editorial) | | was born in Missouri in 1903. We first came to Colorado in 1908, but I don’t remember much about that...several times in the next few years. When visiting Colorado, my family always stayed at the Iron Springs Chateau...those in my cabinet. In 1920, when we moved to Colorado Springs from Missouri, a friend, about my age...agates and carnelian from Austin Bluffs here in Colorado Springs. Shortly after that I met Willard Wulff...Museum of Nature and Science 2001 Colorado Boulevard Denver, Colorado 80205 Unless otherwise noted, all |  | | Journal (issue) | | White Horse Ranch to the Blitzen Valley, (Harney County, Oregon} and on the way I picked up some pieces...looked like slag from a furnace. This was in Grant County, Oregon, about 5 miles from Seneca. I was on a...largest crystal in the world ·was found in pegmatite. It was a perthitic microcline crystal measuring...a black tourmaline crystal 3x3x8 feet in the Luella Mine near Avon, Latah County, Idaho ; and etc. Origin...years to completely form the large 250 pound topaz crystal from Brazil in the Harvard University Museum. The |  | | Journal (issue) | | Colorado Springs Mineralogical Society Founded in 1936 July 2015 PICK&PACK Vol 55 ...... Number 6 Inside...Jacobson Topic: Pegmatitic Rare-earth Minerals of Colorado: Species and Identification Refreshments provided...by the Faceting Group CSMS Calendar Pg 2 Crystal Peak Gem Co Pg 4 Gravel Pit Pg 6 New Fossil Laws...Friends of Mineralogy, Colorado Chapter. Mark has collected rare earth minerals in Colorado, Texas, Wyoming...Minerals of Colorado: Species and Identification Most of the pegmatitic rare-earth minerals in Colorado are found |  | | 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 |
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Crystal Peak, Teller County, Colorado, USA