 | | Journal (issue) | | Pegmatites in the Pikes Peak Batholith, Central Colorado Daniel E. Kile Research Associate, Denver Museum...Nature & Science 5176 Black Bear Run - Littleton, Colorado 801215 Email: centennial87@comcast.net were sparse...throughout the Pikes Peak batholith in central Colorado, and many of them provide spectacular thumbnail-...pegmatites in the Pikes Peak batholith (PPB) in central Colorado. Although some minerals, such as fluorite, hematite...batholith, in an area north of Florissant in Teller County, taken prior to the arsoncaused 2002 Hayman fire |  | | Journal (article/letter/editorial) | | MIAROLITIC CAVITIES OF THE PIKES PEAK BATHOLITH, COLORADO DANIEL E. KILE§ U.S. Geological Survey, 3215 Marine...Marine Street, Suite E–127, Boulder, Colorado, 80303, U.S.A. ABSTRACT Clay samples from 105 cavities...pegmatites throughout the Pikes Peak batholith, in Colorado, were analyzed by powder X-ray diffraction (XRD)...pegmatite, clay minerals, Pikes Peak batholith, Colorado. SOMMAIRE Des échantillons provenant de 105 cavités...part et dʼautre du batholite de Pikes Peak, au Colorado, ont été analysés par diffraction X (méthode des |  | | Journal (article/letter/editorial) | | IVAN JACOBSON 1714 S. Clarkson Street Denver, Colorado 80210 markivanjacobson@gmail.com No pegmatite...common minerals of microcline, bladed albite, and smoky quartz are enhanced by a purple or green cube of fluorite...Granite, near Red Stone quarry, Conway, Carroll County, New Hampshire. Henry Minot specimen and photo...Peak, Teller and Park counties, CO, USA Crystal Park–Bear Creek, El Paso County, CO, USA Pikes Peak Granite... 3 Mount Antero and Mount White, Chaffee County, CO, USA Mount Antero Granite NYF Miarolitic beryl |  | | Journal (article/letter/editorial) | | DANIEL E. KILE 5176 Black Bear Run Littleton, Colorado 80125 dkile4@comcast.net Albite and Microcline...Microcline From the Crystal Peak Area Teller County, Colorado A MYSTERY REVISITED F or many years collectors...some reporting that these holes once contained smoky quartz crystals that had been selectively etched out...Crystal Peak area, Teller County, Colorado; this crystal was enclosed in quartz, preserving its integrity...Crystal Peak area north of Florissant in Teller County, Colorado. The contents of this find were among the |  | | 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."...longest dimension, associated with feldspar, smoky quartz, and zircon. The large fragment was said to...been in the Crystal Park area. The largest fine-quality topaz specimens in Colorado occur in several separate |  | | Journal (article/letter/editorial) | | CAVITY IN CHEYENNE CANYON, EL PASO COUNTY, COLORADO GARY ZITO Colorado School of Mines, Metallurgical and...Engineering Department, 1500 Illinois St., Golden, Colorado 80401, U.S.A. SARAH L. HANSON§ Adrian College...in a pegmatite in Cheyenne Canyon, El Paso Co., Colorado has an unusual mineral assemblage that includes...albite overgrowths, small clear to slightly smoky quartz crystals, micas completely altered to sericite...minerals, generally goethite, coat the feldspar, quartz, and sericite. This mineral assemblage is, in part |  | | Journal (issue) | | Our Lucky Monday – a great collecting story Colorado, USA J. Scovil photo. Issue #6 The Collector’s...be the end of our search for amazonite with smoky quartz. Monday morning, 13 June, things were going...Peak region has been producing amazonite and smoky quartz specimens as well as other pegmatite minerals...combination of smoky quartz with amazonite from Lucky Monday pocket, Smoky Hawk claim, Colorado, USA. 8.2 cm...association with deep black smoky quartz. This discovery became known as the Smoky Hawk structure and has |  | Brigatti, Maria Franca, Lugli, Cristina, Poppi, Luciano, Foord, Eugene E., Kile, Daniel E. (2000) Crystal chemical variations in Li- and Fe-rich micas from Pikes Peak batholith (central Colorado) American Mineralogist, 85 (9) 1275-1286 doi:10.2138/am-2000-8-920 | Journal (article/letter/editorial) | | Fe-rich micas from Pikes Peak batholith (central Colorado) MARIA FRANCA BRIGATTI,*,1 CRISTINA LUGLI,1 LUCIANO...Italy 2 United States Geological Survey, Denver, Colorado 80225, U.S.A. ABSTRACT The crystal structure...Precambrian, anorogenic Pikes Peak batholith, central Colorado, were determined by single-crystal X-ray diffraction...Peak batholith (PPB), central Colorado. The PPB is a result of a complex magmatic history of crystallization...located in the southern Front Range of Colorado, west of Colorado Springs and south and southwest of Denver |  | | Journal (article/letter/editorial) | | miarolitic cavities in the Lake George ring complex and vicinity, Colorado DANIEL E. KILE* AND D.D. EBERL...Geological Survey, 3215 Marine Street, Boulder, Colorado, 80303-1066, U.S.A ABSTRACT The Crystal Peak...of the Pikes Peak batholith, near Lake George in central Colorado, is world-renowned for its crystals...amazonite (the blue-green variety of microcline) and smoky quartz. Such crystals, collected from individual miarolitic...microcline (variety amazonite; Fig. 1a) and for quartz (variety smoky; Fig.1b) found within miarolitic cavities |  | | Journal (article/letter/editorial) | | miarolitic cavities in the Lake George ring complex and vicinity, Colorado DANIEL E. KILE* AND D.D. EBERL...Geological Survey, 3215 Marine Street, Boulder, Colorado, 80303-1066, U.S.A ABSTRACT The Crystal Peak...of the Pikes Peak batholith, near Lake George in central Colorado, is world-renowned for its crystals...amazonite (the blue-green variety of microcline) and smoky quartz. Such crystals, collected from individual miarolitic...microcline (variety amazonite; Fig. 1a) and for quartz (variety smoky; Fig.1b) found within miarolitic cavities |  | | Journal (article/letter/editorial) | | and quartz, 9.9 cm across, Tree Root Pocket, Two Point claim, Pikes Peak batholith, Teller County. The...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) | | Photo courtesy Geology Museum, Colorado School of Mines. Downloaded by [University of Florida] at 07:14...Museum, Colorado School of Mines, 1310 Maple Street, Golden, Colorado. GOLDEN INVITATION The Colorado School...School of Mines Geology Museum (CSMGM), in Golden, Colorado, invites all those in town for the Denver Gem...from our Meissner collection, and a display of Colorado calcites from various col- lectors. Other tentative...another soothing performance by the melodious Colorado School of Mines String Quartet. We hope to see |  | | Journal (issue) | | Nature & Science 5176 Black Bear Run Littleton, Colorado 801215 Email: centennial87@comcast.net texture...California (or those identically named in Nevada, Colorado etc.), the series of adits and stopes collectively...bath. 2 1. Lake George ring complex (LGR), Crystal Peak area, Teller Co., Colorado. Humboldtine was...hematite and goethite surfaces on amazonite and smoky quartz from a miarolitic cavity collected in 2003....Humboldtine on amazonitic microcline and smoky quartz, Teller Co., Colorado; central crystal ca. 3.0 cm SEM-EDS |  | | Journal (issue) | | LaPlante, Jean des Revières, Anthony Gleckler, George Polman, Tom Spann, Mark Mauther, Chris Stefano...Vanadinite 3.4 cm, from the North Geronimo mine, La Paz County, Arizona. Dick Morris collection; Jeff Scovil photo...Jean des Revières Pinal Geology Museum John Ebner George & Deborah Polman Flagg Mineral Foundation Members...cm, from the Defiance mine near Gleeson, Cochise County, Arizona. Ken Donn photo. 6 Supplement to The...cm, from the Breckenridge district, Summit County, Colorado. Ken Donn photo. Wulfenite (hot-pink), 3 |
|
