 | | Journal (article/letter/editorial) | | northeasterly-trending continentul Figure 2. Geologic map of the Colorado Front Range showing the Precambrian metamorphic...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...subduction zone and possibly the creation Era in Colorado and Wyoming of a volcanic island arc. Carpenter...perhaps be the Phillipine island arc, and Jack Colorado show two major rock groups with different ages |  | | 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...crystals. Figure 1 (center spread). Stove Mountain, Colorado. Figure 2 (center spread, inset). An outcrop of |  | | Journal (article/letter/editorial) | | DIKES OF MOUNT ROSA COMPLEX AREA, COLORADO FRONT RANGE, COLORADO, USA SARAH L. HANSON§ 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...Complex (MRC), located in the Colorado Front Range, extends from St. Peters Dome in the south to Mount Buckhorn...Buckhorn to the north and east of Cheyenne Canyon. The complex lies in the southern part of the Pikes Peak |  | | Report (issue) | | = 7.32–7.38 X-ray Powder Pattern: St. Peters Dome, Colorado, USA. 4.35 (10), 2.13 (6), 1.837 (6), 1...ralstonite, weberite, jarlite, siderite, hematite, cassiterite, quartz. Distribution: In Germany, from Altenberg...Tasmania, Australia. In the USA, at St. Peters Dome, near Pikes Peak, El Paso Co., and in the Goldie carbonatite...Mountain-Iron Mountain, Fremont Co., Colorado; in the Dugway district, Tooele Co., Utah; at the Zapot pegmatite...Hawthorne, Fitting district, Mineral Co., Nevada; from the Grand Reef mine, Aravaipa district, Graham Co., |  | | Book (edition) | | MILEAGE L OGS. REVISED EDITION Revised Edition, COLORADO GEM TRAILS AND MINERAL GUIDE HICllAHD :--1. PEARL...an extensive ¥em and mineral collecting tour 01 Colorado, revealing the interesting places where Nature...highways. Latest information is given on local tra\'el and collecting conditions and land ownership, so...Swallow, Publisher) 2679 South York Street Denver, Colorado 80210 - , =· - ·, BOOKS BY RICHARD M. PEARL...PEARL Exploring Rocks, Minerals, Fossils in Colorado America's Mountain: Pikes Peak and the Pikes Peak |  | | Book (edition) | | — _ ; COLORADO GEM TRAILS AND MINERAL GUIDE ! ■ : ' BOOKS BY RICHARD M. PEARL Colorado Gem Trails...Trails and Mineral Guide Colorado Rocks, Minerals, Fossils America’s Mountain: Pikes Peak and the Pikes...Nature As Sculptor: A Geologic Interpretation of Colorado Scenery Guide to Geologic Literature Popular Gemology...Gemology Mineral Collectors Handbook Colorado Gem Trails The Art of Gem Cutting (With Dr. H. C. Dake)...Dake) * RICHARD M. PEARL ★ COLORADO GEM TRAILS AND MINERAL GUIDE ★ SKETCH MAPS BY MIGNON WARDELL PEARL |  | | Journal (article/letter/editorial) | | 09:35 10 October 2014 Helen Hunt Falls, El Paso County, Colorado O wing to its diverse paragenesis and...localities is quite long. The Pikes Peak region of Colorado has been a historical source of exceptional zircon...zircon crystals from Helen Hunt Falls, El Paso County, Colorado. Dave Bunk specimen, Jeff Scovil photo...quartz specimen from Helen Hunt Falls, El Paso County, Colorado. Dave Bunk specimen, John Smolski photo...syenite in the Litchfield-Gardiner area, Kennebec County (King and Foord 1994). Zircon crystals to 2.5 cm |  | | Journal (article/letter/editorial) | | MINERALOGY OF THE MOUNT ROSA AREA, EL PASO AND TELLER COUNTIES, COLORADO. II. PEGMATITESI EuceNB B. Gnoss...alkalic granites in the Mount Rosa area, west of Colorado Springs. One is the older calc-alkalic Pikes Peak...biotite, siderite, and minor topaz, allanite, cassiterite and genthelvite. The Pikes Peak type occurs as...minerals in pegmatites of the St. Peters Dome district, Mount Rosa area,Colorado,attracted the attention of...and agesof pegmatites occur side-by-sidein the district has led us to a clarification of the paragenesis |  | | 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 |  | | 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...should be mailed to Dr. Arthur Roe, 3024 E. Sixth St., Tucson, Arizona 85716, so as to be received before |  | | 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."...area. The largest fine-quality topaz specimens in Colorado occur in several separate and distinct localities...are also referred to the general discussions of Colorado topaz in Eckel (1961) and Pearl (1963) and to |  | | Journal (article/letter/editorial) | | Drift stope level, Climax, Colorado 2Ht In the ore zone, which forms a dome-shaped cap of intensely silicified...veinlets with molybdite, wolframite, topaz, cassiterite, monazite, pyrite and chalcopyrite (Killefer... OCCURRLNCD OF POLYTYPES 2Hr Fairplay, Park Co., Colorado Harvard 81614 This locality simply has been mentioned...Harvard unnumbered Mountain Lion Mine, Boulder Co., Colorado. 1859 OF MOLYBDENITE Magnolia Dist', ZHt...(Worcester, r9r9). Harvard 104570 Near St. Peters Dome, El Paso Co., Colorado. 2IIr The specimen indicates |  | | Report (volume) | | to that for many other metals or fuels. Little mining has been done, and very few high-grade deposits...(Pratt, 1916, p. 68). Brazil dominated the monazite mining industry from 1895 untill914 and shipped most of...deposit at Steenkampskraal, in the Van Rhynsdorp district, South Africa, provided most of the free world's...granite than in granodiorite or quartz monzonite. Cassiterite-bearing granite typically contains accessory...as allanite, monazite, or thorite. Bodies of cassiterite-bearing granite may well contain more thorium |  | | Journal (article/letter/editorial) | | BERYLLIUNT MINERALS IN THE VICTORIO MOUNTAINS' LUNA COUNTY, NEW MEXICO* Wrr.r.rauT. HorsBn, Cornell[Jniaersity...other regions. A modification of the Goldschmidt-Peters theory for the origin of these beryllium minerals...Victorio Mountains, 5 miles south of Gage, Luna County, New lvlexico. The area was visited in September...minerals, fluorite, and, to a lesserextent, cassiterite or molybdenite' Bqryl occurs also in the unique...veins and pegmatites. The quartz veins of Chafiee County, Colo., Hill City, S. Dak., Irish Creek, Va., San |  | | Report (volume) | | it helpful to refer to Survey Bulletin 507, "The mining districts of the western United States," and to...abundant, it may have been completely exhausted by mining or quarrying. Deposits of minerals of wide distribution...because they occur in sufficient quantity to warrant mining for their usual products but because they furnish...A. F. Rogers, Stanford University, Palo Alto. Colorado.........Prof. R. D. George, Boulder. Connecticut...Hotchkiss, Madison. Wyoming.........Mr. C. E. Jamison, Cheyenne. Those members of the United States Geological |  | | Journal (article/letter/editorial) | | GLASTONBURY, CONNECTICUT. J. H. Betts, 215 W. 98th St., #2F, New York, NY 10025. Mineral collectors are...81MINERALS dletown-Portland, Connecticut, pegmatite district. They are found in South Glastonbury, about 5...includes one of the largest quarries of the entire district, the Howe No. 1. Access is through a trail system...in the district include albite, allanite, almandine, autunite, biotite, bismutite, cassiterite, columbite...indication that the South Glastonbury quarrying district will produce fine minerals specimens, though perhaps |  | | Report (volume) | | ............................................. Colorado........................................................................................ 102 District of Columbia ....................................to refer to Geological Survey Bulletin 507, "The mining districts of the western United States," and to...abundant it may have been completely exhausted by mining or quarrying. Deposits of minerals that are widely...because they occur in sufficient quantity to warrant mining for their usual products, but because they furnish |  | | Journal (issue) | | McCornack 2-Ben M-aben CABOCHONS-LADIES ONLY I--Grace Peters 2-Mrs. Claude Rosenberg 3-Audra Ewing MINERAL SPECIMENS...White Horse Ranch to the Blitzen Valley, (Harney County, Oregon} and on the way I picked up some pieces...looked like slag from a furnace. This was in Grant County, Oregon, about 5 miles from Seneca. I was on a...feet. It was mined on the farm Tveit, Iveland District north of Kristiansand, Norway. A book of biotite...3x3x8 feet in the Luella Mine near Avon, Latah County, Idaho ; and etc. Origin The crystals have reached |  | Van Alstine, R. E., Worl, R.G., Heyl, A.V., Trace, R.D., Parker, R.L., Griffitts, W.R., Sainsbury, C.L., Cathcart, J.B. (1976) Geology and resources of fluorine in the United States. Professional Paper 933. US Geological Survey doi:10.3133/pp933 | Report (issue) | | Peninsula, Mich. 10. Porphyry molybdenum ore, Colorado 11 . Zinc ore, Edwards , N . Y. 12. Manganese...Survey in accordance with the provisions of the Mining and Minerals Policy Act of 1970 (Public Law 91-631...discovered or not currently profitable to mine. The mining of mineral deposits, once they are discovered,........................................... Castle Dome . .... .. .. ....... .. .......... . ........ ....important types of fluorine occurrences-Continued Colorado-New Mexico-western Texas-southeastern Arizona |  | | Journal (issue) | | Uwharrie Wildlife M anagem ent A rea, M ontgom ery County, North Carolina. T he major crystal m easures 6...reward for me. KEITH PROCTOR 88 RAVEN HILLS CT. COLORADO SPRINGS, CO. 80919 PHONE: 303-598-8805 (Private...the Burlington mine near Jamestown, Boulder County, Colorado. We found perhaps a dozen good specimens,... MINERAL SPECIES: Country: State or Province: County: N earest Town: M ine Name: O ther Inform ation:...Barbara Frank M untyan 6978 W apiti Court Boulder, Colorado 80301 303-443-8462 A ll news and material relating |  | | Journal (issue) | | mineral localities: The French Creek mine, St. Peters, Chester County, Pennsylvania..........................number of institutions already, including the Colorado School of Mines and the Virginia Polytechnic Institute...adjunct curator at the Science Museum of M innesota (in St. Paul), resulting in the opening of a new mineral...in progress, and participate in either gemstone mining in Oregon or dinosaur digging in W yoming. He is...Delaware 19898 Steven C. M isiur Sterling Hill Mining Museum 30 Plant Street Ogdensburg, New Jersey 07439 |  | | Journal (issue) | | Mine, Randolph County, North Carolina (Dunn, 1977), and the Gold Quarry Mine, Eureka County, Nevada (Jensen...luster. Cmsts and cpstals are associated with cassiterite. albite. tantalite, zircon. hollandite, rnicrolite...Iz-i_mt. Greenland: St. Peter's Dome. Colorado: and the Zapot Pe-matite in Vineral County. Nevada. Figure...from the Bassick Mine, let Mountains. Custer County, Colorado in a similar mineral assemblage of quartz...habit is similar to those reported from St. Peters Dome, Colorado and illustrated in Palache er al. ( 1 |  | | Book | | mid-1957, of vvhich 70% is in New Mexico, 16% in Colorado, Utah, and Arizona, and 8% in Wyo1ning. These...doubtless the U.S.S.R., likewise established uranium mining industries. These efforts in the Reid and in the...siliceous and Ruoritic types, and the oxidized Colorado Plateau deposits are desc1ibed vvith those that...origin, e.g., Blind River, \i\litwatersrand, and Colorado Plateau. The writer has attempted to present equitably.... . . . . . . . . . . . . . . . . . . . . . . Colorado Plateau . . . . . . . . . . . . . . . . . . . |  | | Report (issue) | | _________________ ___. Nevada ___________ Elko County. - ______ ... _ Star mine, Harrison Pass _____... Tuscarora Range _____ _ ._. ________ Humboldt County Golconda manganese-tungsten depositNorth workings...Lincoln County__-__-----_-----_-----___ Tern Piute district....... __ ___ ... Mineral County____-_______________...naine________________ Mine near Green Talc mine. _____ Nye County ____ _._-___-________-___ Gabbs area __ _____________________..._____ Brucite and magnesite deposits. __ Pershing County __ Rocks in the West Humboldt Range ..~ Limerick |  | | Report (volume) | | ................................. Arsenical cassiterite........................................................"................. 64 Hinsdalite from Colorado ................................................................. 75 Some minerals from Beaver County, Utah................................. 77 Introduction...100 CONTENTS. 5 Page. Natramblygonite from Colorado........................................... Occurrence.......................... Thaumasite from Beaver County, Utah..................................... Introduction |
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