 | | 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 Park–Bear Creek, El Paso County, CO, USA Pikes...NYF Miarolitic topaz, amazonite, phenakite Pikes Peak Granite NYF Miarolitic topaz, amazonite, phenakite... 3 Mount Antero and Mount White, Chaffee County, CO, USA Mount Antero Granite NYF Miarolitic beryl |  | | 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...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 “Early, Middle, and Late” Eras. In Colorado we because of the subsequent folding and overthrusting |  | | 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...Natural History for conceiving the idea of a second Colorado issue and for helping a great deal in bringing |  | | 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...(the potash feldspars, including microcline and orthoclase), and those containing abundant sodium and/or...since several other feldspar species, such as orthoclase and oligoclase, may exhibit these colors in relatively...granite bodies, such as Col 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) | | in West Cheyenne Canyon, El Paso County, Colorado, is located in the Pikes Peak batholith, a composite...composite of the Pikes Peak Granite and a series of late-stage potassic and sodic granite plutons (Raines 2001;...crystals. Other genthelvite localities in the Pikes Peak batholith are Crystal Park, Cookstove Mountain...Dunn (1977). In the Northern Cascades of Okanogan County, Washington, the alkaline granites of the Golden...described in 1892 from West Cheyenne Canyon, El Paso County, Colorado, by Frederick August Genth (1820–1893) |  | | Report (volume) | | Calcite Fluorite Apatite . 6. 7. 8. 9. 10. Orthoclase Quartz Topaz Corundum Diamond The numbers preceding...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 |  | | Report (volume) | | Fremont, El Paso, and Teller Counties, Colorado U.S. GEOLOGICAL SURVEY BULLETIN 1716-B COLORADO DEFINITION...the San Isabel National Forest, south-central Colorado: U.S. Geological Survey Bulletin 1638, p. 40-^2...SOUTH-CENTRAL COLORADO Mineral Resources of the Beaver Creek Wilderness Study Area, Fremont, El Paso, and Teller...Teller Counties, Colorado By David A. Lindsey, Jerry R. Hassemer, Ronny A. Martin, and Richard B. Taylor...Creek Wilderness Study Area, El Paso, Fremont, and Teller Counties, Colorado. (U.S. Geological Survey bulletin |  | | Report (issue) | | GOLD DEPOSITS OF THE CRIPPLE CREEK DISTRICT, COLORADO BY \V ALDEl\;IAR LINDGREN A:'\D FREDERIC!{ LESLIE...Granite Pikes---------------------------------------------------------·-········-······ Peak granite.......... ___ •. __ .. ___ .- _...... _. . . . Orthoclase .. __ ..... _... _. _. _. __ ........... __ .... . . . . . . . . . . . . . . . . . . . . . . El Paso and C. K. & N. mines ..... ___ ..... __ ........._... . ..... ___ . _..... _..... _.. _...... . El Paso mine .. ___ . ___ . ___ . _. _____ ......... _ |  | | Journal (issue) | | Colorado Springs Mineralogical Society Founded in 1936 February 2016 PICK&PACK Vol 56 ...... Number... February 18, 7:00 PM This month’s speaker is Colorado Springs Utilities Topic: Representative(s) will...Frank Rosenberg COLORADO SPRINGS MINERALOGICAL SOCIETY BOX ,COLORADO SPRINGS, COLORADO 80901-0002 February...Senior Center is located at 1514 North Hancock in Colorado Springs. For more information on any of the sub-groups...to be held on the Auraria Campus, University of Colorado, Denver. You may register online to be a judge |  | | Report (volume) | | GEOLOGICAL RESURVEY OF THE CRIPPLE CREEK DISTRICT, COLORADO BY WALDEMAR LINDGREN AND FREDERICK LESLIE RANSOME...on a "Resurvey of the Cripple Creek district of Colorado," by Messrs. Waldemar Lindgren and F. L. Ransome...made by Messrs. Cross and Penrose, the' people of Colorado had been so strongly impressed with the economic...GEOLOGICAL RESURVEY OF THE CRIPPLE CREEK DISTRICT, COLORADO. By WALDEMAR LINDGREN and FREDERICK LESLIE KANSOME...desire found expression in a request by citizens of Colorado for a reexamination of the district by the United |  | | 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 |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...localities: The Cripple Creek Mining District, Colorado . . . . . . . . . . . . . . . . . . . . . . ....collection to the Natural History Museum of Los Angeles County. Julius Weber was well known in the mineral community...Department of the Natural History Museum of Los Angeles County has placed a high priority on building its micromount...collecting benitoite and neptunite” in San Benito County, California. Bryan Lees (current lessee of the |  | | 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. 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 |  | | Report (issue) | | Polymorphism & Series: Mineral Group: Dimorphous with orthoclase. Feldspar (alkali) group; (Si,Al) is completely...Tirol, Austria. At Baveno, Piedmont, Italy. In the USA, at Amelia, Amelia Co., Virginia; Haddam, Middlesex...Spring Co., Arkansas. In Colorado, in the Pikes Peak area, El Paso Co., Crystal Peak, Teller Co., with large |  | | Report (issue) | | Denver, Colorado, USA © 2011 by Lithographie, LLC P.O. Box 11613 • Denver, CO 80211 • USA Phone 1.303...collection Robert Weldon photo Above: Topaz, 5.5 cm tall El Chalten, Santa Cruz, Argentina Scott Rudolph collection...Topaz ALFREDO PETROV & JOHN RAKOVAN 34. Colorful Colorado DAVID W. BUNK 42. Mongolian Topaz: The Gorkhi...and quartz, 5.3 cm tall Sawtooth Mountains, Boise County, Idaho shown under longwave ultraviolet light (left)...fluoresces brightest under longwave light at 350 nm (peak at about 352 nm). Don Newsome collection Jeff Scovil |  | | Journal (article/letter/editorial) | | Tree 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 |  | | Other Paper | | f11Ll, <:...Ofd';' UL e,( AMAZONITE FROM THE PIKES PEAK BATHOLITH by Eugen• E. Foord Stop 905 ·.U.S...G•ologica.l Survey Deaver Fedoral Ce�ter Lakewood, Colorado 80225 a..nd Robert F. Ma.rtin Dept. of Geologic�l...hues and intensities, has been known from the Pikes Peak batholith for over 110 years. Strictly speaking...maximum microcline but also similarly colored orthoclase, intermediate microcline and other varieties...amazoni te. The first description of amazonite from Colorado appears to have been that of Hollister (1867) |  | | Journal (article/letter/editorial) | | cavities in altered variscite at Fairfield, Utah County, Utah; also manganoan overite recently has been...S AND M I N E R A L S Edwin Over of Colorado Springs, Colorado, who, with Mr. Arthur Montgomery, recognized...reportedly from the Pikes Peak region (Burke, 1952). I n about 1921 E d moved to Colorado Springs where he...Mill where his uncle was the superintendent. In Colorado Springs he also met the well-known miner alogist...young mineral collectors. E d Over attended the Colorado School of Mines for a little over two years but |  | | Journal (article/letter/editorial) | | PEGMATITES OF EIGHT MILE PARK, FREMONT COUNTY, COLORADOXT E. Wrrr. HerNnrcu, Department of Mineralogy...o r m a t i o n . . . . . Hornblende gabbro. Pikes Peak granite .. . . . Aplite and fine-grained granite...to twelve miles west of Canon City, Fremont County, Colorado, includes about 30 square miles that lie at...separate paper. 420 PEGMATITES OF EIGHT MILE PARK, COLORADO 42r area are flanked on the east by hogbacks...Three major pre-Cambrian rock units are present: Pikes leak granite, Idaho Springs schist, and injection |  | | 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 |  | | Report (issue) | | Crystalline Rocks, Park and Jefferson Counties, Colorado GEOLOGICAL SURVEY PROFESSIONAL PAPER 608-B General...Crystalline Rocks, Park and Jefferson Counties, Colorado By C. C. HAWLEY and R. A. WOBUS GEOLOGY AND ORE...TARRYALL REGION, PARK AND JEFFERSON COUNTIES, COLORADO GEOLOGICAL SURVEY PROFESSIONAL PAPER 608-B...ago. Late phases of the final intrusion, the Pikes Peak Granite, were accompanied by beryllium-bearing...Tarryall region, Park and Jefferson Counties, Colorado) (Geological Survey Professional Paper 608-B) |  | | Journal (article/letter/editorial) | | quartz, Manhan River mine, Easthampton, Hampshire County, Massachusetts. Marvin Rausch specimen, Jeff Scovil...branch of the Calumet and Hecla mine, Houghton County, Michigan. A. E. Seaman Mineral Museum (Michigan...JulyIAugust: Vanadinite and wulfenite, Old Yuma mine, Pima County, Arizona. Les Presmyk specimen, Jeff Scovil photo...claim, Lake George intrusive center, Teller County, Colorado. Dave Bunk specimen, Jeff Scovil photo. November/December:... Eagle mine, Gilman County, Colorado. Dave Bunk specimen on loan to the Colorado School of Mines, Jeff |  | 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) | | Jean COWMAN & Philip PERSSON Tribute Pocket, CO, USA Mineral photography: James Elliott INTRODUCTION...claim, Colorado, USA. HISTORY: DISCOVERY AND RE-DISCOVERY Topaz has been known from the Pikes Peak area...this mine. Associated Photographer: Jeff Scovil (USA) Topaz is a rather common mineral, forming during...south-eastern portion of the Pikes Peak massif, El Paso County, Colorado, was one of the most significant... INTRODUCTION Associated Editors: Paul Cragan (USA) Malcolm Southwood (Australia) P. Persson photo |
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Pikes Peak, El Paso County, Colorado, USA