 | | Journal (article/letter/editorial) | | December 2012 Flgun 1. View from the summit of Pika Peak looking northwest acro88 the cliffās of Glen Cove...northeasterly-trending continentul Figure 2. Geologic map of the Colorado Front Range showing the Precambrian metamorphic...I-billion-year-old 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 āEarly, Middle, and Lateā Eras. In Colorado we because of the subsequent folding and overthrusting |  | | Journal (issue) | | 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...number of localities throughout the Pikes Peak batholith in central Colorado, and many of them provide spectacular...the interest in this region lies in commercial amazonite collecting; very few study the more esoteric aspects...found in pegmatites in the Pikes Peak batholith (PPB) in central Colorado. Although some minerals, such |  | | Journal (article/letter/editorial) | | IVAN JACOBSON 1714 S. Clarkson Street Denver, Colorado 80210 markivanjacobson@gmail.com No pegmatite...Granite, near Red Stone quarry, Conway, Carroll County, New Hampshire. Henry Minot specimen and photo...Crystal Peak, Teller and Park counties, CO, USA Crystal ParkāBear Creek, El Paso County, CO, USA Pikes...Miarolitic topaz, amazonite, phenakite Pikes Peak Granite NYF Miarolitic topaz, amazonite, phenakite References... 3 Mount Antero and Mount White, Chaffee County, CO, USA Mount Antero Granite NYF Miarolitic beryl |  | | Journal (issue) | | Julius Weber Mamaroneck, New York COLORADO ISSUE #2 Articles Colorado locality index.............................. 323 by B. L. Muntyan Whatās new in Colorado minerals? ......................................of Colorado ..................................349 by J. A. Murphy Amazonite from the Pikes Peak batholith...COVER: AMAZONITE with smoky quartz, 10 cm tall, from the Yucca Hill claim, Park County, Colorado. Richard...Natural History for conceiving the idea of a second Colorado issue and for helping a great deal in bringing |  | | Journal (article/letter/editorial) | | COLORADO TOPAZ Topaz, Al Si0 (F,OH) is one of Colorado's better known gem minerals. Though ColĀ 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...within the large (1,080 mi ) and well-exposed Pikes Peak batholith. The batholith, slightly more than |  | | Journal (article/letter/editorial) | | 20:04 16 May 2014 Stove Mountain Area Colorado Springs, Colorado All photos by Gary Zito unless otherwise...otherwise noted 224 ROCKS & MINERALS GARY ZITO Colorado School of Mines Metallurgical and Materials Engineering...Engineering Department 1500 Illinois Street Golden, Colorado 80401 gzito@mines.edu SARAH L. HANSON Adrian...20:04 16 May 2014 in the Stove Mountain area of Colorado have provided numerous attractive specimens of...Unlike the better known pegmatites within the Pikes Peak Batholith, this area is also notable for its |  | | Journal (article/letter/editorial) | | 36849-5305 Microcline, Variety Amazonite Yucca Hill Prospect, Park County, Colorado T H I S I S S U E ' S C...as amazonite or amazonstone. Although all blue- and green-hued microcline may be termed amazonite, not...not all amazonite is microcline, since several other feldspar species, such as orthoclase and oligoclase...granite bodies, such as ColĀ orado's Pikes Peak Batholith and the Harney Peak Granite in the Black Hills of...Pala district, California; the general Pikes Peak area of Colorado; gem pegmatites of the New England states; |  | | 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 |  | | 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...and J. A. MurĀ 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 (inĀ cluding quartz) was included |  | | Journal (article/letter/editorial) | | MINERALOGY OF THE MOUNT ROSA AREA, EL PASO AND TELLER COUNTIES, COLORADO. II. PEGMATITESI EuceNB B. Gnoss...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...aluminofluorides. These dikes intrude both the Pikes Peak and its derivative fayaiite granites along northeast-trending...the coexisting Pikes Peak pegmatites, which are characterized by quartz and amazonite crystals, zircon |  | | Journal (article/letter/editorial) | | 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...aquamarine localities, Mount Antero, Chaffee County, Colorado, was highlighted by Jacobson and Lees (2008)...there appears to be a general association with amazonite-bearing pegmatites. Good phenakite specimens are... at Waterford, Oxford County; and the Square pit at Topsham, Sagadahoc County, Maine. Good crystals are |  | Foord, E. E., ÄernĆ½, P., Jackson, L. L., Sherman, D. M., Eby, R. K. (1995) Mineralogical and geochemical evolution of micas from miarolitic pegmatites of the anorogenic pikes peak batholith, Colorado. Mineralogy and Petrology, 55 (1) 1-26 doi:10.1007/bf01162576 | Journal (article/letter/editorial) | | miarolitic pegmatites of the anorogenic Pikes Peak batholith, Colorado E. E. Foord 1, P. Cern~ z, L. L. Jackson...Mineral Resources, U.S. Geological Survey, Denver, USA Department of Geological Sciences, University of...Denver, USA Branch of Geophysics, U.S. Geological Survey, Denver, USA Topometric, Bedminister, USA With...granitic units of the anorogenic Pikes Peak batholith (1.08-1.02 Ga), Colorado range in composition, and follow...minerals are quartz, microcline perthite (mostly amazonite), and albite, with local topaz or fluorite, and |  | | Journal (article/letter/editorial) | | inch on edge, from the Henderson mine, Clear Creek County. Figure 2 (right). Green fluorite encrusted with...Mountain Wilderness area near Columbine Lake, La Plata County; largest crystal measures 1.25 inches on edge;... 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 (issue) | | R. Kampf Natural History Museum of Los Angeles County George Robinson National Museums of Canada Arthur..................................203 R. Barnes Pikes Peak Granite........................................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) | | MIAROLITIC CAVITY IN CHEYENNE CANYON, EL PASO COUNTY, COLORADO GARY ZITO Colorado School of Mines, Metallurgical...Engineering Department, 1500 Illinois St., Golden, Colorado 80401, U.S.A. SARAH L. HANSONĀ§ Adrian College...cavity in a pegmatite in Cheyenne Canyon, El Paso Co., Colorado has an unusual mineral assemblage that includes...a pegmatite pocket in Cheyenne Canyon, El Paso County, Colorado. This location is about 2 km north of...Cheyenne Canyon lies in the southernmost part of the Pikes Peak batholith, a composite batholith that is subdivided |  | | 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...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 |  | | Report (volume) | | Del Norte County; Trinity River, Trinity County; Spanish Creek and Gopher Hill, Plumas County; Placerville...and Webber Hill, El Dorado County; Cherokee Flats, Yankee Hill,and Oroville, Butte County; French Corral...Corral, Nevada County; Indian Gulch and Volcano, Amador County; and Alpine Creek, Tulare County. Other western...Diamond Basin, Ada County, Idaho; Curry County, Oreg.; and Nelson Hill, near Glacier County, Mont. The Great...Pierce County; Oregon, Dane County; Kohlsville, Washington County; Saukville, Ozaukee County; Eagle, |  | | Journal (issue) | | - - - - - - - - - - - Mineral Collections 1n Colorado A Supplement to The Mineralogical Record November-December...with amazonite, 11.8 cm, from the "Smithsonian packet," Smoky Hawk claim, Florissant, Colorado. Collected...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 (article/letter/editorial) | | DIKES OF MOUNT ROSA COMPLEX AREA, COLORADO FRONT RANGE, COLORADO, USA SARAH L. HANSONĀ§ Adrian College,...Madison Street, Adrian, Michigan 49221, USA, GARY ZITO Colorado School of Mines, Metallurgical and Materials...Department, 1500 Illinois Street, Golden, Colorado 80401, USA Keywords: pegmatite, beryllium mineralization...INTRODUCTION The Mount Rosa Complex (MRC), located in the Colorado Front Range, extends from St. Peters Dome in the...of the Pikes Peak Intrusive Center within the larger 1.08 Ga Pikes Peak Batholith. The Pikes Peak Intrusive |  | | Journal (article/letter/editorial) | | Littleton, Colorado 80125 dkile4@comcast.net Albite and Microcline From the Crystal Peak Area Teller...Teller 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...biotite/Fe-zinnwaldite crystal from the Crystal Peak area, Teller County, Colorado; this crystal was enclosed in quartz...important amazonite pocket, named the āKey-Hole vug,ā on the Ten-Percenter claim in the Crystal Peak area |  | | Journal (article/letter/editorial) | | Denver, Colorado MARK I. JACOBSON Chevron U.S.A., Inc. 700 S. Colorado Boulevard Denver, Colorado 80222...sponĀ sored by the Coors Foundation of Golden, Colorado, and repreĀ sents a significant improvement over... Crystal displays and mineral occurrences of amazoniteāsmoky quartz and selenite-calcite-aragonite as...expanded exhibits of minerals for which Colorado is famousāamazonite, aquamarine, rhodochrosite, topaz, and...its role in providing educaĀ tional tours for Colorado school children. Plans are also proĀ gressing |  | | Other Paper | | 1-Ā· N lW f11Ll, <:...Ofd';' UL e,( AMAZONITE FROM THE PIKES PEAK BATHOLITH by Eugenā¢ E. Foord Stop...Gā¢ologica.l Survey Deaver Fedoral Ceļæ½ter Lakewood, Colorado 80225 a..nd Robert F. Ma.rtin Dept. of Geologicļæ½l...PISTOLS .... ļæ½---=.. I INTRODUCTION AND HISTORY Amazonite, a bluish-green to greenish-blue variety of microcline...known from the Pikes Peak batholith for over 110 years. Strictly speaking, the term amazonite (or amazonstone)...plagioclaseĀ amazoni te. The first description of amazonite from Colorado appears to have been that of Hollister |  | | Journal (article/letter/editorial) | | CLASSIC COLORADO PORTFOLIO MINERALS: BARBARA L . MUNTYAN 6978 Mapiti Court Boulder, Colorado 80301 COLORADO...COLORADO IS ONE OF THE MOST HIGHL Y MINERALIZED states in the Union. Not only is it known for the variety...found in Colorado occur in extraordinarily large and beautiful crystals. Some of the best Colorado specimens...rather common species from a number of famous Colorado locales. There were literally dozens of other...Shares of Colorado. Figure 1 (left): Hematite after siderite, quartz, Lake George, Park County, Colorado |  | | Journal (issue) | | Mineralogical Societies (RMFMS) www.rmfms.org Colorado Federation of Gem & Mineral Societies (CFGMS)...Calendar Pg 2 New Discovery Ute Arti- Pg 6 facts, El Paso Co. Fig. 1. The colorful copper minerals of Arizona...Crystal Group COLORADO SPRINGS February 2013MINERALOGICAL SOCIETY PO BOX 2 COLORADO PICK SPRINGS, &...9 a.m. ā 4 p.m. daily, at two locations on the Colorado School of Mines Campus, Golden CO: (1) Arthur...Fri-Sun, Feb. 22-24, Gem and Mineral Show, Jefferson County Fair Grounds, Exhibits Building; sponsored by the |  | | Journal (issue) | | important miner in the Crystal Peak area north of the town of Florissant in Colorado. In addition to being a...a prospector, miner, and operator of the Crystal Peak Gem Mines, he also mentored others who succeeded...including Jerry Hurianek, whose longtime activities in Colorado are documented in t\vo of his unpublished articles...in 1938 about finding smoky quartz in the Crystal Peak area (Hurianek 1938). Jerry, in turn, passed along...hills north of Florissant and Lake George for amazonite and smoky quartz for the past 150 years, but few |
|
Pikes Peak, El Paso County, Colorado, USA