 | | Journal (article/letter/editorial) | | Figure I : View of Mt. Antero towards the southeast, taken by the U . S. Geological Survey geologist...oldest existing photograph of Mt. Antero. Courtesy of U.S.G.S. A Mount Antero Postscript E . WM. HEINRICH...of pegmatite prospecting on Mount Antero, Chaffee County, Colorado, gives a detailed account of fine...single type of beryllium deposit found in the Mount Antero area. Less well publicized is the discovery of...follows: 14 R O C K S AND M I N E R A L S 1. Quartz-beryl-pyrite veins. This type includes the veins at the |  | | Journal (article/letter/editorial) | | for aquamarine, the blue to bluegreen gemstone of beryl. The glassy blue appearance of natural aquamarine...cm long), Beebe Hall, McCain Valley, San Diego County, California. Cal and Kerith Graeber specimen; Jeffrey...ROCKS & MINERALS Aquamarine, like all varieties of beryl, is a beryllium aluminum silicate with hexagonal...of the crystallography and atomic structure of beryl can be found in Sinkankas (1988, 1981). The most...aquamarine is iron in the + 2 oxidation state. Yellow beryl occurs when all the iron is in the + 3 oxidation |  | | Journal (article/letter/editorial) | | Figure 1: View of Mt. Antero towards the southeast, taken by the U . S. Geological Survey geologist D...is probably the oldest existing photograph of Mt. Antero. Courtesy of U . S . G . S . AQUAMARINE, PHENAKITE...N E R A L S F R O M the Mt. Antero mineral locality, Chaffee County, Colorado, are well known throughout...1885, Reverend Roselle Theodore Cross of Denver, Colorado, wrote to George F . Kunz, the noted New York...locality. . . . I bought all the man had but one" (Colorado Historical Society). This greatly interested Kunz |  | | 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? ......................................339 by M. I. Jacobson The San Juan Mountains of Colorado ..................................349 by J. A...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) | | Vol. 20 SOCIETY OF' AMERICA MAY, 1935 No.5 COLORADO PEGMATITES KBNNBTU K. Lauons, Unioersity of Kansas...in every county 'of Colorado along the Front Range of the Rocky Mountains from Larimer County on the Wyoming...Wyoming line to Custer County in the south-centralpart of the state, and in scatteredpre-Cambrianareas...The pre-Cambrian schists and granites of Larimer County are cut by numerous pegmatite dikesl which have...exhibiting an ore mineral phaseoccur in Boulder County.3JeffersonCounty contains both tourmaline and muscovite |  | | Journal (article/letter/editorial) | | GRANITE PEGMATITES OF THE MT. ANTERO REGION, COLORADO Gnoncn Swrrzrn, Haraard flnioersity,Cambridge,Mass...A granite stock in the region of Mt. Antero, Chafiee County, Colorado, contains numerous, small, closely...qtartz, and a variety of later hydrothermal minerals-beryl, phenakite, albite, bertrandite and fluorite. The...preferred setting. INTRODUCTION The region of Mt. Antero, Colorado has been known for many years as a locality...locality for fine crystallized specimensof beryl (aquamarine), phenakite and bertrandite. Descriptive notes |  | | Journal (article/letter/editorial) | | THE BERYL-MOLYBDENITE DEPOSIT COUNTY, COLORADO. KENNETH OF CHAFFEE K. LANDES. INTEREST hasrecentlybeenaroused...impartsunusualproperties.In addition,the 'occurrence of beryl in a quartzvein is unusual. Thewriterbelieves thatdeposits...pegmatiticorigin. Location.--The beryl-molybdenite vein of central Chaffee Countyoutcrops at an elevation...the writer's knowledge) to mention thepresence of beryl. An analysis of molybdite fromthislocality waspublished...1Worcester, P. G.: Molybdenite Deposits of Colorado. Colorado Geol.Survey, Bull. •4, x9x9. 9.Crawford |  | | Journal (issue) | | Discovery froin Mt. Antero in Chaffee County, Colorado William Henry Hutchinson University of Colorado (Boulder)...areas of Mount Antero and Mount White in the Collegiate Range in Chaffee County, Colorado (Jacobson 1993)...Self discovered a new beryl crystal on his mine, the Blue Eagle Claim, on Mount Antero. This crystal, although...although broken in pieces, is the largest recorded beryl found on the mountain to date (Jacobson, personal...claim owner Jeffery Self near the claim on Mount Antero, approximately 13,000 feet in elevation. (Continues |  | | Journal (issue) | | 2008 Table of Contents Collecting Minerals in Colorado - Peter Modreski ...........................Pg...Mining Update .......................... Pg. 20 Colorado Fossil Woods - Frank Daniels ...................on collecting minerals in Colorado by Pete Modreski, the informative Colorado petrified wood article by...the magazine so you get your very own copy! Colorado Minerals is the theme of the 2008 Denver Gem and...of aquamarine crystals, the state gemstone of Colorado. The aquamarine occurs in miarolitic pegmatite |  | | Journal (article/letter/editorial) | | 1169 Golden, Colorado 80402 bryan@collectorsedge.com Downloaded by [University of Colorado at Boulder...Spectacular New Aquamarine Find on Mount Antero Chaffee County, Colorado Beautiful crystals of ColoradoÕs state...276-foot-tall Mount Antero, in Chaffee County, Colorado, hit pay dirt. Steve Brancato, of Salida, Colorado, has been...on the geology, history, and collecting on Mount Antero, see Pearl [1972], Jacobson [1984, 1993], and Heinrich...Home mine near Alma, Colorado, and the barite discoveries near Stoneham, Colorado. Currently the company |  | | Journal (article/letter/editorial) | | Knoxville] at 04:13 19 December 2014 Mount Antero, Chaffee County, Colorado A s virtually every collector knows...and some districts, such as those in San Diego County, California, and many of those in Minas Gerais...Beautiful specimens of variously colored tourmaline, beryl, and spodumene from such occurrences grace many...premier aquamarine localities, Mount Antero, Chaffee County, Colorado, was highlighted by Jacobson and Lees...veins. Commonly associated minerals are topaz, beryl, Dr. Robert B. Cook, an executive editor of Rocks |  | | Journal (article/letter/editorial) | | fine gems. Noted from Pala, California; Mt. Antero, Colorado; some localities in Chester and Delaware...pegmatite near the Royal Gorge in Fremont County, Colorado. Common in the pegmatites of Yavapai and Maricopa...Mountain in the Crested Butte region of Gunnison County, Colorado, in good gem crystals. ANDRADITE, calcium-iron...Andradite has been found at Middletown, Delaware County, Pennsylvania and at other localities in Delaware...observed in pegmatite as at St. Peter's Dome, Colorado; and at Rockport, Massachusetts, at which locality |  | | Journal (issue) | | Colorado Springs Mineralogical Society Founded in 1936 Lazard Cahn Honorary President July 2019 PICK...Pittman Topic: “Mineral Collecting Locations in Colorado” Please note: Members whose names begin with A-L...July **In case of inclement weather please call** Mt. Carmel Veteran’s Service Center 719 309-4714 Number...Pebble Corneron Pg Pg 5 bers andPups Phenakite Mt. Antero Pg 9 Brad’s Bench Tips Pebble PupsExhibit Corner...meeting about where to collect mineral specimens in Colorado. There are hundreds, if not thousands of places |  | | Journal (article/letter/editorial) | | mineral in a few pegmatites at Atolia, San Bernardino County, California and also in pegmatites north of the...earth type of pegmatite as at Barringer Hill, Llano County, Texas where large masses weighing up to four hundred...found in the Gem Mines region north of Florissant, Colorado; green cubes and cubo-octahedrons to four inches...octahedral crystals have been collected at Mt. Antero, Colorado; where also the first octahedral twinned...St. Peter's Dome near Pike's Peak, El Paso County, Colorado. CRYOLITE, a fluoride of sodium and aluminum |  | | Journal (article/letter/editorial) | | Two Point claim, Pikes Peak batholith, Teller County. The Collector’s Edge specimen, Jeff Scovil photo...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) | | LARIMER COUNTY, C O L O R A D O MARK I . JACOBSON 1350 E . Easter Avenue Littleton, Colorado 80122 LEPIDOLITE...under active claim by King Koenig of Loveland, Colorado, although no recent claim markers were observed...to be present along fractures in the pegmatite. Beryl has been reported from these pegmatites by Meeves...Mountain pegmatite district is known mostly for its beryl occurrences, lithium minerals are present in many...He was the au thor of "Mt. Antero Mineral Locality, Chaffee County, Colorado: Past & Present" (January-February |  | | Journal (article/letter/editorial) | | William Besse. 1714 S. Clarkson Street Denver, Colorado 80210 markivanjacobson@gmail.com B lue minerals...symbol to promote outstanding aspects of their county or state. Approval is usually not difficult because...explored for copper in the Cerbat Mountains, Mohave County. They acquired mineral rights to two sections of...Cochise County, and earned the nicksurrounding Mineral name of “Turquoise Park, Mohave County, King” (Arizona...Johnston Turquoise company man district, Mohave County, Arizona. John Betts photo. 1964). reputedly was |  | | Journal (article/letter/editorial) | | DIFFERENCES IN THE MINOR ELEMENT COMPOSITION OF BERYL IN VARIOUS ENVIRONMENTS1 Monrruon H. Sr.llrz, Warrncn...R. BAnNorr, U. S. Geolog,ical Survey, Denver, Colorado. AesrRA.cr The range in abundance of certain elements...found in beryl by spectrographic analysis, but only 13 made up as much as 0.1 per cent of any beryl. Beryl...contain relatively large amounts of cs, Rb and Li. Beryl from wallrock adjacent to pegmatite generally has...Sc, V, Cr, Mg, Fe and Ni than beryl from pegmatite, and less Rb. Beryl comes from several types of veins |  | | Journal (article/letter/editorial) | | California; in the Petaca district of Rio Arriba County, New Mexico; from the Harney Peak region of South...Reagan mining district, Kern range, White Pine County, Nevada. SULFUR, S, occurs very rarely in pegmatites...found in Colorado as tiny yellow grains as a very rare mineral in the pegmatites of the Mt. Antero region...sulfide, has been found in the Ben Nevis ville, Union County, Georgia. It has been mine on San Augustin Peak...tains, New Mexico, with argentite in a Randolph County, Alabama; and from a sulfide zone near the center |  | | Journal (issue) | | on Amazonite 7.5 cm, from the Smoky Hawk claim, Colorado. Collected by the Dorris family; Tom Spann photo...the finest aquamarine and phenakite from Mt. Antero, Colorado, and their most publicized effort, the mining...museum quality.” (Szenics, 1967) Spruce Peak, King County, Washington, 1977 Beautiful pyrite and quartz specimens...and FLECK, G. (1980) The Grey Horse mine, Pinal County, Arizona. Mineralogical Record, 11 (4), 231–232...and HAWES, W. (1978) Quartz and pyrite from King County, Washington. Mineralogical Record, 9 (6), 352–353 |  | | 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...region (Burke, 1952). I n about 1921 E d moved to Colorado Springs where he lived with his uncle Loyalle...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 |  | | Catalog/List | | Wheatley's Mines, near, Phoenixville, Chester County, Pennsylvania. An excellent matrix specimen of...3. AZURITE, Copper Queen Mine, Bisbee, Cochise County, Arizona. A superb, large, old-timer of the hest........................................ 2500. 7. BERYL variety MORGANITE, Gillette Quarry, Haddam, Connecticut... The habit is prismatic (which is rare in pink beryl) with an excellent second-order pyramidal termination............. 2750. 18. PHENAKITE, Mt. Antero, Chaffee County, Colorado. Fine, bright doubly-terminated |  | 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 (article/letter/editorial) | | first type consists primarily of Be silicates (beryl + phenakite) in the outer zones (zones I–II), which...hydroxylherderite or hurlbutite ! fluorapatite ! beryl, which is suggestive of the competitive predominance...uniquely described by Cs-rich beryl in zones III and IV. This type of beryl is easily altered by hydrothermal...hydrothermal fluids, leading to secondary Cs-poor beryl and nanpingite. Our results indicate that crystallization...evolution of pegmatite crystallization. Keywords: beryl, phenakite, hydroxylherderite, beryllium, Nanping |  | | 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 |
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Mt Antero, Chaffee County, Colorado, USA