 | | Journal (article/letter/editorial) | | [University of Nebraska, Lincoln] at 13:31 09 June 2016 Colorado boasts numerous localities where fine sphalerite...of sphalerite also occur at many localities in Colorado, in shades of amber, emerald- or lime-green,...Muntyan, former director of the Ouray County Museum in Ouray, Colorado, is a frequent contributor to Rocks...in her series on Colorado minerals appeared in the July/August I994 issue (“Colorado Pyrite”), September/October...September/October 1995 issue (“Colorado Calcite”), May/June 1996 issue (“Colorado Fluorite”), and July/ August |  | | Journal (article/letter/editorial) | | August 2013 BARBARA L. MUNTYAN P.O. Box 495 Ouray, Colorado 8 I427 hodochrosite, a manganese carbonate with...Rhodochrosite has also been found in many localities in Colorado, particularly in the mines of the San luan Mountains...it i s one of the most recognized and coveted Colorado minerals. partiY DO e the presence of a mix...significant amounts in many mining districts of the Colorado mineral belt, a large, elongated, highly mineraiized...extreme southwestem comer of Colorado. Most of the metal mining in Colorado has been within this belt since |  | | Journal (article/letter/editorial) | | (above). Pyrite, Alice Glory Hole, Clear Creek County. Cluster of intergrown crystals showing light...Figure 2 (right). Pyrite, Mountain Spring mine, Rico, Dolores County. Cluster of modified cubes; specimen...C*O*L*O*R*A*D*O PYRITE BARBARA L. MUNTYAN Ouray County Museum Ouray, Colorado 81427 Mineral photographs by John R...Park City, Utah; Washington State; and numerous Colorado localities. Pyrite crystallizes in the isometric...Pyrite is the most common sulfide mineral found in Colorado; it is found in a wide variety of occurrences |  | | 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 |  | | 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) | | For August, 1935 __ __ ,,. PAe& The Boulder, Colorado, Tungsten Area. By Ronald L. Ives ........ 113................ 12 3 Lake City Mining District, Colorado. By David Seaman ........... 124 Club and Society...Minerals Association 1935 WHOLE No. 50 The Boulder, Colorado, Tungsten Area By RONALD L. IVES Since the early...mining mation is pre-Cambrian, with three, in Colorado, those who panned the and possibly four mineralizations...remainder FeWO, .... Ferberite hlgh country of Boulder County, Color20-80 % Mn WO., ado, near the town of Nederland |  | | 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? ...................................... Famous mineral localities: the Home Sweet Home mine ..................................................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 |  | | Report (volume) | | 4=78 GEOLOGY AND ORE DEPOSITS NEAR LAKE CITY, COLORADO BY JOHN DUER IRVING AND HOWLAND BANCROFT WASHINGTON...andesite.............................................. Henson tuff.......................................................................................... Hinsdale volcanic series.......................................................................... '... Henson tuff.....l......................................................................... ^......... Hinsdale volcanic series.............................. |  | | 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 |  | | Report (issue) | | COLORADO GEOLOGICAL SURVEY BOULDER R. D. GEOqGE, State Geologi.t BULLETIN 22 MINERAL DEPOSITS OF THE...oozi5137 EAME"S BROS, STATE PRINTERS FOR COLORADO DENVER. COLORADO GEOLOGICAL B O A R D His Excellency...Shoup George Norlin Governor of Colorado President University of Colorado Victor C. Aldersox.. Charles...TRANSMITTAL State Geological Survey, Uxiversity of Colorado, October 28, 1920. Governor Oliver H. Shoup. Chairman...honor to transmit herewith Bulletin 22 of the Colorado Geological Survey. Very respectfully, R. D. George |  | | Journal (issue) | | Marvin Hanner Additions to the Ore Mineralogy of Colorado.................................................by Donald Grybeck Crystallized Minerals of the Colorado Mineral Belt....................................had achieved considerable fame, and the right to mine diopside was obtained that year by G eorge L. English...thereafter. In 1971 both the land and the right to mine diopside were purchased by the present owners, Schuyler...Alveum, R obert Dow, and G eorge Robinson. T he mine is now being worked interm ittently each year for |  | | Journal (article/letter/editorial) | | KokomoMiningDistrict,Colorado CRAIG J.MACH* ANDTOMMY B.THOMPSON **'• Department of EarthResources, Colorado StateUniversity...StateUniversity, Fort Collins,Colorado 80523 Abstract The oresof the Kokomo miningdistrict,Colorado, areAg-Pb-Znmassive...hydrothermal solutions. Mantosaresurrounded by halosof siderite-manganosiderite, hydrothermal dolomite, and/orjasperold...res verysimilarto oresat Leadville and Gilman,Colorado. Ore deposition occurred in the generalsequence:...ironsulfides (pyrrhotite, marcasite, andpyrite)+ siderite,quartz,highironsphalerite, ferroandolomite, galena |  | | Book (volume) | | ...........................................59 Colorado ...............................................................548 Table of Maps Page Alabama County Map ...................................................................................4 Alaska County and Stream Map ......................................................................22 Arizona County Map ..................................................................45 Arizona – Yuma Co. Hull Mine Site Map ...................................... |  | | Report (issue) | | District, Eagle County, Colorado GEOLOGICAL SURVEY Study made in cooperation with the Colorado Mining Industrial... Ore Deposits of the Oilman District, Eagle County, Colorado By THOMAS S. LOVERING, OGDEN TWETO, and T...PAPER 1017 Study made in cooperation with the Colorado Mining Industrial Development Board Description...district that is the leading source of zinc in Colorado and an important source of silver, copper, lead...1896Ore deposits of the Oilman District, Eagle County, Colorado. (Geological Survey Professional Paper 1017) |  | | Journal (article/letter/editorial) | | MolybdeimmMineralizedBrecciaPipeComplex, Bedwell Basin,Colorado JA.X{ES E. SIIARP Abstract The Redwell Basin...porphyry stock suggest that this depositis of the Climax type. Brecciating fluids emanating from the stock...al. (1967) to offsetearly Tertiary and Mesozoic mine fault. Radial dikes of felsite and of igneous sedimentaryrocks...•,•""""'• j•,•/ Breccia pipes xx N•. x\• t x Mine x>-Prospect or rnine opening •)•\ •,• • Fau Its...in decreasing order of abundance are fluorite, siderite,pyrite, serfcite,sphalerite,and cassiterite. |  | | Report (issue) | | Group: Forms two series, with calcite and with siderite. Calcite group. Occurrence: A primary mineral...uncommon in granite pegmatites. Association: Calcite, siderite, dolomite, fluorite, barite, quartz, pyrite, tetrahedrite...Mare (Nagybánya) district, Romania. In the Wolf mine, near Herdorf, Westphalia, Germany. In Russia, from... Canada. In the USA, from the Emma mine, Butte, Silver Bow Co., Montana; in Colorado, at many localities...Home Sweet Home mine, Alma, Park Co., from the Climax mine, Lake Co., in the Sunnyside mine, near Silverton |  | Lüders, Volker, Romer, Rolf L., Gilg, H. Albert, Bodnar, Robert J., Pettke, Thomas, Misantoni, Dean (2009) A geochemical study of the Sweet Home Mine, Colorado Mineral Belt, USA: hydrothermal fluid evolution above a hypothesized granite cupola. Mineralium Deposita, 44 (4) 415-434 doi:10.1007/s00126-008-0221-3 | Journal (article/letter/editorial) | | geochemical study of the Sweet Home Mine, Colorado Mineral Belt, USA: hydrothermal fluid evolution above...fluorite–rhodochrosite mineralization at the Sweet Home Mine occurred coeval with the final stage of magmatic...activity and ore formation at the nearby world-class Climax molybdenum deposit about 26 to 25 m.y. ago. The...Geosciences, Virginia Tech, Blacksburg, VA 24061, USA T. Pettke Institute of Geological Sciences, University...Switzerland D. Misantoni Colorado Calumet Company Inc., P.O. Box 1169, Golden, CO 80402, USA al assemblage was |  | | Report (issue) | | Mo porphyry 2.2 Cu Au porphyry 2.3 Mo porphyry Climax 2.4 Mo porphyry low F 2.5 Fe skarn 2.6 Cu skarn...Norte Cty, CA Santa Helena, Antioquia, Colombia Goto Mine, Luzan, P.I. References Wells, F. G. et al 1946...APPROXIMATE SYNONYM DATE Granite molybdenite Climax December 6, 1982 OF (REFERENCE) Mutschler and...in K-feldspar altered host rocks. Examples Climax Colorado References 10 Rb White and others, 1981...(Cyprus), York Harbor, (Canada) Turner-Albright, (USA) References 3.1 (continued) Petersen and Zantop |  | | Journal (article/letter/editorial) | | relatively shallowporphyrydeposits, suchasHenderson,Colorado,boilingcauses aqueousfluidsto pass directlyfrom.../anyor /aKV.Biotite transformsto magnetite,hematite,siderite,pyrite, chlorite,or fayalite beyondthe K-feldsparfield...um /teposits,especiallyClimax and Hendersonin Colorado,is perhapsbestclassified asgreisen(seereview by... 1978). In what follows, I havetakenHenderson,Colorado,astypicalof what superfluously might be calleda...•U•O(fixed).At porphyry-typedeposits, suchasHenderson,Colorado. fixed #,•o, the slopeof a line of equal #•:•ois |  | | Journal (article/letter/editorial) | | THE MOLYBDENUM MINE AT AZEGOUR, MOROCCO.• ARNOLD HEIM. Tn•, Azegourmine is the most recentlydiscovered...molybdenum mine, and is one of the richest known. It was discoveredfive years ago. The mine was formerly...district, was made in 1929, by the manager of the mine, M. F. Hdbrard. A year later, a report appearedby...Atlas (a distanceof 6o Km.). From this town to the mine a motor road 2o Km. long has beenconstructed,which...the end of the paper. 76 MOLYBDENUM the work. MINE AT AZEGOUR, MOROCCO. 77 Excellent subsurface |  | | Report (issue) | | Series 30 Bibliography and Index of Colorado Geology, 1984-1989 Colorado Geological Survey Department of...Resources Denver, Colorado 1990 Information Series 30 Bibliography and Index of Colorado Geology, 1984-1989...Institute under contract to the Colorado Geological Survey Colorado Geological Survey Department of...of Natural Resources Denver, Colorado 1990 ii FOREWORD In recognition of the need to more effectively...published literature on the state's geology, the Colorado Geological Survey is pleased to release Information |  | | Report (issue) | | Geochemical Maps of Stream Sediments in Central Colorado, from New Mexico to Wyoming Open-File Report... Cover: Overlooking North Fork Lake Creek and Colorado highway 82 east of Independence Pass, with Star... 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.............................................. |  | | 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 |
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