 | | Journal (issue) | | Newsletter $6.00 Fibrous Malachite from the Mindingi Mine Katanga, Democratic Republic of the Congo Tony Nikischer...fibrous malachite from the Mindingi Mine in the Kambove District of Katanga began to appear in the specimen...ten {I 0) years ago (see figure J ). Although the mine was first worked superficially in the 1930s for...DRC as well (see figure 2). Today, the Mindingi Mine continues to produce wonderful malachite specimens...specimenand image. Nickel Laterite From the Tiebaghi Mine, New Caledonia Bob Werner werner@lcturbonet.com |  | | Journal (article/letter/editorial) | | Sweet Home rhodochrosite specimen mine, Alma District, Central Colorado: the porphyry molybdenum–fluorine...hrosite–fluorite in the Sweet Home Mine, Alma District, Colorado were originally mined for silver starting...For the last 13 years up until 2004, however, the mine has produced world-class rhodochrosite specimens...deposit is interpreted as a single pulse variant of a Climax-type hydrothermal system. Evidence for this includes...age of the end stages of mineralization of the Climax molybdenum deposit approximately 7.5 km to the | | | Journal (article/letter/editorial) | | Sweet Home rhodochrosite specimen mine, Alma District, Central Colorado: the porphyry molybdenum–fluorine...hrosite–fluorite in the Sweet Home Mine, Alma District, Colorado were originally mined for silver starting...For the last 13 years up until 2004, however, the mine has produced world-class rhodochrosite specimens...deposit is interpreted as a single pulse variant of a Climax-type hydrothermal system. Evidence for this includes...age of the end stages of mineralization of the Climax molybdenum deposit approximately 7.5 km to the |  | | Journal (article/letter/editorial) | | I•V HE.4VY .4CCESSORY OXIDES, CLIM.4X 3IOLYBDENUM MINE, CLIM.4X, COLOR.4DO Introduction Tantalum and uranium...significantcomponentsin ihnenorutilefrom the Climax Molybdenum mine, Lake County, Colorado. semiquantitative, and qua...principalmineral in certain float concentrates producedat the mine in the lnonazite-rutile float concentrate." Both...uranium. those familiar with milling operationsat Climax is that the minerals discussedhere are representative...during the 1950s. max ore were of interest early in mining activities. X-ray fluorescence analysisof splitsfrom |  | | Journal (issue) | | of float copper was found in southern Houghton County and the larger mass was recovered a few miles west...Molybdenite Climax Mine, Lake County, Colorado Bob Werner werner@lcturbonet.com The Climax Mine, located...located in Lake County, Colorado (Fig. I), is perhaps the world's largest deposit of molybdenum (Mo) metal...as "molybedamnite" or "molybedumdumite". The Climax Mine has operated on and off for over I 00 years and...expectation would be in vain. Specimens from the Climax Mine typically put real meaning to the term "aesthetically |  | | Book | | k. CLIMAX The History of Colorado's Climax Molybdenum Mine STEPHEN M. VOYNICK Climax The History...History of Colorado's Climax Molybdenum Mine Stephen M. Voynick Mountain Press Publishing Company Missoula...has been made possible by a grant from the Cyprus Climax Metals Company. A portion of the proceeds from...will benefit the National Mining Hall of Fame & Museum, Leadville, Colorado. Publication of this photographs...photographs and illustrations courtesy of the Climax Molybdenum Company unless otherwise noted. All Second |  | | Report (issue) | | Henderson Mine, Colorado By George A. Desborough U. S. Geological Survey Denver, Colorado, 80225 and...Extractive Research and Development, Inc. Golden, Colorado, 80401 Open~File Report 80-661 1980 This report...units vhich occur at the Henderson molybdenum mine, Colorado. The major minerals in fresh Henderson host...magmatic acces- sory minerals include ilmenorutile, monazite, fluorite, zircon, apatite, magnetite* xenotime...igneous host of molybdenum ore at the Henderson mine. This deposit has been extensively drilled and |  | | Journal (article/letter/editorial) | | Accepted Manuscript The genesis of Climax-type porphyry Mo deposits: insights from fluid inclusions and...this article as: A. Audétat, W. Li, The genesis of Climax-type porphyry Mo deposits: insights from fluid...apply to the journal pertain. The genesis of Climax-type porphyry Mo deposits: insights from fluid...data on fluid inclusions and melt inclusions from Climax-type porphyry Mo deposits. Data are presented from...suggest that the mineralizing silicate melts in Climax-type porphyry Mo systems were highly evolved high-silica |  | Wallace, A.R., Ludington, Steve, Lovering, T.G., Campbell, D.L., Case, J.E., Grauch, V.J.S., Knepper, D.H. (1988) Leadville 1 degree x 2 degrees Quadrangle, Colorado; a pre-assessment. Open-File Report Vol. 1988 (88-74) US Geological Survey doi:10.3133/ofr8874 | Report (issue) | | GEOLOGICAL SURVEY Leadville I°x2° quadrangle, Colorado: a pre-assessment by Alan R. Wallace , Steve...standards and stratigraphic nomenclature. Denver, Colorado -Menlo Park, California CONTENTS Page Preface........... 10 3. 4. 5. Map showing tracts for Climax and porphyry-type deposits..... Map showing tracts............ 18 19 20 TABLES Table 1. 2. 3. 4. Mining districts in the Leadville quadrangle................................. Base- and precious-metal mining areas......................... 4 11 16 17 PREFACE |  | | Report (volume) | | India and Brazil. By 1951 the foreign supplies of monazite, the main ore of thorium and the rare earths,...the manu· facture of incandescent gas mantles. Monazite was mined in the United States for this purpose...main ore mineral of thorium and the rare earths, monazite, occurs primarily in beach and river placer concentrations...their monazite content alone only in the last 5 years and in the period 1893-1911. The monazite produced...between these two periods has been a byproduct of the mining of other minerals, such as ilmenite or gold, and |  | | Report (volume) | | Rm G-84 DENVER, Colorado--Federal Bldg., Rm. 169, 1961 Stout St. LAKEWOOD, Colorado-- Federal Center...Center, Rm. 1C402, 12201 Sunrise Valley Dr. SALT LAKE CITY, Utah--Federal Bldg., Rm. 8105,125 South State...model of Climax Mo deposits, by Stephen D. Ludington 73 Grade and tonnage model of Climax Mo deposits...section of a Climax Mo deposit 74 Tonnages of Climax Mo deposits 75 Molybdenum grades of Climax Mo deposits...rock types 133 Cross section through the Kalavos district Cyprus showing relationship of massive sulfide |  | | Report (issue) | | Geochemical Maps of Stream Sediments in Central Colorado, from New Mexico to Wyoming Open-File Report...Survey Cover: Overlooking North Fork Lake Creek and Colorado highway 82 east of Independence Pass, with... Geochemical Maps of Stream Sediments in Central Colorado, from New Mexico to Wyoming By Robert G. Eppinger...Geochemical maps of stream sediments in central Colorado, from New Mexico to Wyoming: U.S. Geological Survey.................. 1 Geologic Setting of Central Colorado.............................................. |  | | 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 (article/letter/editorial) | | coal, so far beneath the surface, normal strip mining methods of drilling and blasting had to be suspended... 22, 1956. Trip to Climax, Colo. Editor R & M: On July 14, 1956, the Colorado Mineral Society made...trip to the Climax Molybdenum Mine at Climax, Colorado. This is the largest underground mine in the U.S...world's supply—60% from the Climax mine, and 20% from Utah—this one mine begins to take on a position...group of the men were taken thru the workings of the mine, the entire party had a wonderful dinner in the | | | Report (issue) | | S. Geological Survey Cover: The Mountain Pass Mine, southeastern California, June 2018; view to the...United States. The deposit was discovered in 1949. Mining of the deposit began in 1952, and production was.............................1 Rare-Earth-Element Mining in the United States.............................Sources of Critical Minerals Rare-Earth-Element Mining in the United States REE mineral occurrences are...However, only one U.S. deposit, the Mountain Pass Mine in California, is currently producing REEs; it has |  | | Report (issue) | | About 200 km northeast of the quadrangle in Gila County, Ariz., the Dripping Spring Quartzite, one formation...deposits from Ajo to deposits in the MiamiInspiration district including the Casa Grande, Sacaton, and Poston...body contains phyllic alteration. The New Cornelia mine produced about 45,360 tonnes of copper per year...and the mine is currently (1985) closed. Phelps Dodge Corporation planned to expand the mine so that...and a porphyry-related skarn deposit. North of the mine a composite Late Cretaceous quartzmonzonite-granodiorite |  | | Journal (article/letter/editorial) | | MICANITE, COLORADO E. Wtu. Herwucn, UniversityoJ Michigan,Ann Arbor, Mi.chigan. ABsrRAcr The Climax pegmatite...pegmatite of the Micanite district in Colorado contains unusually large masses of cordierite, which is altered...IurnooucttoN The Micanite pegmatite district iies acrossthe Park-Fremont County line in south-centralColorado...Sterrett (1923,p.53), who recognizedcordieritein the Climax deposit. The pegmatite was studied by the writer...they were reopened by the Colorado Feldspar Company of Canon City, Colorado, and moderate quantities of |  | | Book | | MINES AND MINERALS OF THE GREAT AMERICAN RIFT (COLORADO-NEW MEXICO) Sine —_—< ¢ te om At _SHT 40...MINES AND MINERALS OF THE GREAT AMERICAN RIFT (COLORADO-NEW MEXICO) Richard Walker Holmes and Marrianna...Mines and minerals of the Great American Rift (Colorado-New Mexico). Bibliography: p. Includes index...index. 1. Mines and mineral resources—Colorado. 2. Mines and mineral resources—New Mexico. I. Kennedy, Marrianna...enter must be obtained to prevent trespass. Old mine workings are dangerous and entering underground |  | | Journal (article/letter/editorial) | | ECONOMIC GEOLOGISTS AND THE AMERICAN INSTITUTE OF MINING AND METAL- LURGICALENGINEERS, NEW YORK MEETING...cassiterite and columbite-tantalite. Prospecting and mining have been particularly active since World War II...in zonedpegmatitescanbe appliedto prospectingand mining of pegmatite depositsin these two areas of South...company,Territory EnterprisesLtd., is developingand mining depositsat Rum Jungle itself and other companiesand...syndicatesare beginningto be active elsewhere in the district. Tropical weatheringof outcropscombinedwith soil |  | | Report (volume) | | San Isabel National Forest, South-Ce tral Colorado COLORADO An Assessment of the Mineral Resource...the San Isabel National Forest, South-Central Colorado By Richard B. Taylor, Rebecca j. Stoneman, and...structures 12 Mineral resources-Locatable minerals 12 Mining and exploration history 12 Metals 13 Industrial...the San Isabel National Forest, south-central Colorado Mineral resource potential map of the San Isabel...Isabel National Forest, south-central Colorado FIGURES 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. |  | | Report (issue) | | Public Inquiries Office, 437 Federal Building, Salt Lake City, Utah. MAPS AND BOOK REPORTS Anderson, C...map of the NE 1/4 Mount Union quadrangle, Yavapai County, Arizona: 1 map. Dec. 21, 1962. (Wa, Da, M; Arizona...of the Wilson Peak stock, San Miguel Mountains, Colorado: 154 p., 1 pi., 37 figs. Aug. 8, 1962. (Wa.) 13...area, Crawford Dam and Reservoir Site, Delta County, Colorado: 15 p., 5 figs. Dec. 11, 1962. (Da and Wb...Gammaradioactivity investigations at the Nevada Test Site, Nye County, Nevada (Interim report, February 1960 to July |  | | Journal (issue) | | Corp., an Idaho mining concern. Michigan Chemical is also continuing other mining exploration activities...drillings on 35,000 acres 1n the Cumpas and Nacozari district of Sonora. Compania Minera de Cananea- 99<< owned...years. The firm reportedly \vill develop an open pit mine if such an operation is justified. A Canadian-Japanese...lend Caribou Copper Mining $300,000 to prospect the Bootjack area of Williams Lake, B.C., said to contain...firms hope to form an operating company which would mine ore and export 25<, concentrate to the Japanese |  | | Report (issue) | | MOUNTAINS WILDERNESS STUDY AREA (CDCA-348), RIVERSIDE COUNTY, CALIFORNIA SUMMARY REPORT By Robert E. Powell...California Desert Conservation Area, Riverside County, California. SUMMARY Geologic and geochemical...in the northern Chuckwalla Mountains, Riverside County, Calif, (fig. 1). The area is split into two parts...ore minerals of tin and thorium cassiterite and monazite, respectively have not been observed in the stream...mineralization commonly observed around granite-molybdenite (Climax-type) systems in the western United States (Wallace |  | | Journal (article/letter/editorial) | | push began, and Bartlett Mountain, near the Colorado mining camp of Leadville Comparisons: Specific gravity...and Climax Station along the railroad from Denver provided a name for a great molybdenum mining enterprise...identified as moly bdenite (molybdenum disulphide) by Colorado School of Mines scientists in 1900, but because...there had been no use or market for it. Today, Climax production capacity is 43,000 tons daily and, through...ore have been taken from Bartlett Moun tain, the mining of which has been encouraged by the use of molybdenum | | Plumlee, Geoffrey S., Streufert, Randall K., Smith, Kathleen S., Smith, Steven M., Wallace, Alan R., Toth, Margo I., Nash, J. Thomas, Robinson, Rob A., Ficklin, Walter H., Lee, Gregory K. (1995) Map showing potential metal-mine drainage hazards in Colorado, based on mineral-deposit geology. Open-File Report Vol. 1995 (95-26) US Geological Survey doi:10.3133/ofr9526 | Report (issue) | | Prepared by the U. S. Geological Survey and the Colorado Geological Survey in cooperation with the U. S...Illinois River Parkview Mtn. Brush Fort Morgan Grand Lake White River V Allen's Park Us Akron Us Meeker...Gilman Hall's Gulch Tenmile - Breckenridge Kokomo Climax Holy Cross Upper Blue River Jefferson rk Fo... Castle Rock Sou ng ari Ro Tarryall Crk. Climax Tenn. Pass Snowmass Breckenridge Redcliff ...Round Mountain Woodland Park Riverside Ri ve r Colorado Springs Trout Creek Crested Butte Free Gold |
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