 | | 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...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...Pikes Peak Granite within the Pikes Peak batholith, in an area north of Florissant in Teller County, taken |  | | Journal (issue) | | Discovery of Gem-Grade Chrysocolla From Ontonagon County, Michigan Tom Rosemeyer datolite@charter.net This...for the week at the Minesota mine in Ontonagon County and mineral collect this area during part of the...Schoenfuss detecting al the Quincy mine, Houghton County, Michigan in August 2018. He has made several important...chunk of crystalline cuprite that contained small crystal vugs. He also started to find small chips of blue-green...conglomerate and vugs in cuprite. beautiful spherical crystal aggregates of needle-like malachite were found |  | | 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 (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) | | 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 |  | | 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) | | MineralCorp. specimenand image. Bibliogra-phy of Colorado Mining History Fig. 3: A close-upview (about...imprisonment for not more than six months in the county jail for any violation of the Act. As it appears...the hard to obtain Vol. 1, No. 1, Tsumeb, the Colorado I, Gold I, 5 Arizona issues, Silver issue, and...Lizard Mine, San Juan County, Utah, and the Burro Mine, San Miguel County, Colorado, USA Canadian Mineralogist...Lizard mine San Juan County, Utah, and the Burro mine, San Miguel County, Colorado, USA. At both mines, it |  | | Journal (article/letter/editorial) | | is compared with the commonly applied magnetite–ilmenite (mgt–ilm) oxybarometer of Ghiorso and Evans (2008)...the beginning of this study we focused mainly on crystal-bearing obsidians (vitrophyres) because they have...vanadium (Dmgt/melt V analyzing magnetite and ilmenite phenocrysts and the surrounding, glassy matrix...apatite, bio biotite, fl fluorite, fsp feldspar, ilm ilmenite, Kfsp potassic feldspar, mgt magnetite, mon monazite...MI and mgt in quartz i Magnetite inclusions; ilmenite microphenocrysts j Peralkaline rock; zircon |  | | 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) | | 10 October 2014 Helen Hunt Falls, El Paso County, Colorado O wing to its diverse paragenesis and resistance...zircon localities is quite long. The Pikes Peak region of Colorado has been a historical source of exceptional...earths and commonly typified by somewhat radial crystal aggregation is known as “cyrtolite,” once considered...zircon crystals from Helen Hunt Falls, El Paso County, Colorado. Dave Bunk specimen, Jeff Scovil photo. Volume...El Paso County, Colorado. Dave Bunk specimen, John Smolski photo. Figure 2. Zircon crystal, 3.3 × 2 |  | | 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) | | 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 |  | | Journal (article/letter/editorial) | | at 10:10 25 August 2017 Abbreviations: x l - -crystal fl—fluoresces xled- -crystallized ALABAMA — "Although...the old open pit Sodium Sulphate mine in Imperial County near BertROCKS AND MINERALS ram siding on the...California collectors do not appreciate them. COLORADO—"I am sending you some specimens by P.P.—thought...has been found and reported from the Crystal Peak area of Colorado and I have also found it there but only..."—items sent in by O. A. Reese, 806 E. Boulder, Colorado Springs, Colo. Onegite is quartz penetrated by |  | | Journal (issue) | | 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 |  | 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). |  | | 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 |  | | 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 |  | | Report (volume) | | distinguished by their, physical properties: color, crystal form, cleavage, parting, hardness, specific gravity...important aids in identifying gems. They are: color, crystal form, cleavage, parting, hardness, specific gravity...in most minerals. Most gem stones have certain crystal systems that form under favorable conditions of...particular atomic arrangement results. The six crystal systems in which gem stones may form are: isometric...cleavage, surfaces are parallel to some of the crystal faces of some gem stones. For example, diamonds |  | | Report (volume) | | ............................................. Colorado.................................................especially from those of Arkansas, California, Colorado, New Mexico, Oregon, South Dakota, Tennessee,...minerals and rocks, their occurrence and uses: Colorado State Geol. Survey Bull. 6, 1913. 8 USEFUL...See Bauxite and Halloysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton; |  | | Journal (issue) | | Collector's Newsletter Colorado Calumet Mining and Glacier Peak Mining Crystal Peak Mining District Venture...Update Joseph Dorris This season, Glacier Peak Mining and Colorado Calumet Mining Inc. (Bryan Lees) decided...the Crystal Peak Mining District near Lake George, Colorado. As I wrote last season, Glacier Peak Mining...limited resources we bad. Bryan Lees (president of Colorado Calumet) and I agreed that with our combined resources...resources, such as our co-located claims, Colorado Calumet's equipment and expert resources such as its |  | | Book | | 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 |  | | 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) | | 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 |
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