 | | Journal (article/letter/editorial) | | B. COOK Department of Geology and Geography Pyrargyrite Downloaded by [New York University] at 17:35...dominant member of the family, the antimony-analog pyrargyrite, is similarly sought, yet offers collectors somewhat...specimens of pyrargyrite have been recovered from an interesting array of important mining districts; it...Mexico and, to a lesser extent, Peru. When fresh, pyrargyrite is dark red; however, it tarnishes when exposed...hardness of 2.5 and a measured density of 5.82. Pyrargyrite is hexagonal (3m), most commonly forming stout |  | | Report (issue) | | COLORADO GEOLOGICAL SURVEY BOULDER R. D. GEORGE. State Geologist BULLETIN 10 GEOLOGY AND ORE DEPOSITS...DEPOSITS OF THE GOLD BRICK DISTRICT COLORADO By R. D. CRAWFORD and P. G. WORCESTER DOI: https://doi.org/10...CHARLES A. CARLSON Governor of Colorado Presi dent University of Colorado President State School of Mines...honor to transmit herewith Bulletin 10 of the Colorado Geological Survey. Very respectfully, R. D. GEORGE.... . . . . . . . . . . . . . . . . History of mining . . . . . . . . . . . . . . . . . . . . . . . |  | | 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 |  | | Report (issue) | | COLORADO GEOLOGICAL SURVEY BOULDER R. D. GEORGE, State Geologist BULLETIN 12 COMMON MINERALS AND ROCKS...org/10.58783/cgs.b12.hntl2601 EAMES DENVIIIR, COLORADO BROS., STATE PRINTERS 1917 GEOLOGICAL BOARD...Governor of Colorado LIVINGSTON F ARRAND ______________________ President University of Colorado HowARD C...TRANSMITTAL State Geological Survey, University of Colorado, Feb.2.1917. Governor Juli11s C. Giinter, Chairman...honor to transmit herewith Bulletin 12 of the Colorado Geological Survey. Very respectfully, R. D. GEORGE |  | | Book | | deposits, can only be considered to some extent. Mining selects, if possible, deposits which are not complicated...Australia (f) G. M. F R I E D M A N , Troy, New York, USA G. FRIEDRICH, Aachen, Germany H . FROHBERG, Toronto...B. F . LEONARD, Denver, Colorado G. J . N E U E R B U R G , Conifer, Colorado 80433 E . H . N I C K E.... W. OSTERWALD, Denver, Colorado U. P E T E R S E N , Cambridge, Mass., USA G. M. R A D I S I C S , Toronto...Quartz alone in just one group of ore deposits (the gold-quartz deposits), and he will not expect t h a t |  | | Book (edition) | | 35 mm, Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit...various degrees. less common are malleable (e.g gold). ductile (e.g. copper). sectile (e.g. chalcocite)...abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture), dept...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....always included in text, except in the cases of the USA, UK, and the provinces Ontario and Quebec in Canada |  | | Book (edition) | | Rs v Engineering News -Record ~ Engineering and Mining Journal-Press Power Chemical and Metallurgical...ment—Copper—Lead and zinc — Gold and — Price Iron — Copper—Lead — Zinc —Silver— Gold —Tin, metals— Production...rocks — Acid sulphate waters in igneous rocks — Mine waters of sulphate type —Sodium carbonate waters...Detrital clay deposits Gold Origin and distribution deposits Origin of placer gold Eluvial deposits Processes...placer gold — Fineness and relation relation to bed-rock — Grade of auriferous to vein gold — Gold watercourses |  | | Journal (issue) | | from the Bunker Hill mine, Idaho (see vol. 13, no. 5) and wulfenite from the 79 mine, Arizona (see vol....ground is forever gone as well. Modern Mining Technology Modem mining technology has become so automated...have greatly diminished. In addition, many modem mining companies preoccupied with efficiency now actively...been ac companied by a progressive improvement in mining and beneficiation technology which allows ever...incentive for mining people to preserve specimens. And it has helped to convince mining executives that |  | | Book | | Exploration and Discovery of Minerals and Rocks Mining and Quarrying 364 365 Processing, Benefication...0.74 0.76 1.34 78 Platinum Pt 1.38 Pt 79 Gold Mercury Lead Au Hg 1.43 1.37 1.55 Au + Hg 2+...for a Song time, long before Christ. Egyptians mining turquoise in the Sinai area were well aware of...a particular face, it is necessary to deter- mine whether or not that face intersects all of the crystallographic...Orange-red Realgar, crocoite Red Gold-brass Cinnabar, hematite, zincite Gold, chalcopyrite, pyrite Silver |  | | Book (edition) | | For the Student of Elementary Mineralogy, the Mining Engineer, the Geologist, the Prospector, the Collector...meet the needs of the student of mineralogy, the mining engineer, the geologist, and the amateur mineralogist...important elements as copper, lead, zinc, silver, gold, tin, mercury, nickel, antimony, and arsenic. Below...are said to occur in the native state. Example, gold, Au. 2. Sulfides. This class consists for the most...Remarks of G lobule Gold Au allow, core, no co: (ene remains bright Metallic gold can be easily reduced | | | Book (edition) | | For the Student of Elementary Mineralogy, the Mining Engineer, the Geologist, the Prospector, the Collector...it is oriented, in the absence of other deter mining properties, in the positive position. Fm. 117...Gadolinium . . Gallium . . . . . Germani um . . Gold . . . . . . . . Hafnium . . . . . Helium . . . ...important element.5 as copper, lead, zinc, silver, gold, tin, mercury, nickel, antimony, and arsenic. Below...and are said to occm in the native state. Example, gold, Au. 2. Sulfides. This class consist.5 for the most |  | | Book | | enteri versity of Roches Harold L. Ailing's the mining distri* Adirondack Mou somed into a lifet New York...searching for silver near Lake Sanford in Essex County discovered magnetite in 1826, but an excess of...Rochester; the main Public Library of Buffalo and Erie County; and the Crandall Public Library (Holden Research...ciifce—Westchester County.................. Tne McLear pegmatite—5t. Lawrence County.............................. Tilly Foster magnetite mine near Brewster, Putnam County.................................. |  | | Book | | Appalachian coal region, in northwestern Arkansas and in Colorado. Semianthracite Coal—Some regard the term semianthracite...that of Pennsylvania. A little is also found in Colorado. Superanthracite—In some regions coal has been...Science, N.S. XXIII; 696, 1906. III. Cerrillos Hills district, N.M.—Johnson, Sch. of M. Quart., XXIV: 492, 1903...section, and hence outcrop around the margir, the mining operations being therefore confined to a narrow...to anthracite, as in the Crested Butte area of Colorado or the Cerillos field of New Mexico. Some of the |  | | Journal (issue) | | ........247 Mineralogical Notes Texasite from Colorado by Wilson W. Crook III ...................................251 Chalcanthite from the Helvetia District, Arizona by George Robinson ..............................................252 llvaite, a New Colorado Occurrence by Henry A. Truebe...................the recent paper, “ Uralolite from the Dunton Gem mine, Newry, Maine: a second occurrence” (vol. 9, p....Gordonsville zinc mines, near the town of Carthage, Smith County, Tennessee. Relatively little top-qualitymaterialfrom |  | | Book (edition) | | trigonal copper trisocta- silver hedron trisocta- gold platinum galena hedron halite for tetragonal...(barite, diamond) (cinnabar, scheelite) (uraninite, gold) . Vectorial properties The most important ...without breaking (gold); others are ductile and can be drawn in very thin threads (gold); or sectile and...Americium Argon As Arsenic At Astatine Au B Ba Be Gold Boron Barium Bi Bismuth Berkelium Bromine Symbol...a mineral was discovered (benitoite, San Benito County, California), or dedicated to a scholar (dolomite |  | | Book (edition) | | used in a modern building such as steel, cement, brick, glass, and plaster had their origin in minerals...cerargyrite copper cuprite fluorite galena garnet gold halite lazurite leucite silver spine! group sylvite...crystallizing in this class, but in addition there are pyrargyrite, proustite, and alunite. Figures 189-192 represent...Fluorine Francium Gadolinium G allium Germanium Gold Hafnium Helium Holmium Hydrogen Indium Iodine Iridium...anomaly in the sizes of atoms, which results in gold (at . wt. 197) having the same atomic r adius as |  | | Journal (volume) | | visitors, interested to see how rock have the yellow gold extracted therefrom, and how cleverly the little...Exposition.* G. Dodd, the superintendent of the mining departof the Union Iron Works, it will readily...veras county, Cal., lies Salt Spring val- Through this trough-like depression extends a gold belt reaching...and of greatly varying size. The gold-bearing quartz of the district is associated with these dykes, usually...is that of the building and head frame at that mine. An electric plant is stalled at La Grange |  | | Journal (volume) | | furnaces, which are of brick built up into four walls so as to form a kind of rough brick box, no mortar or...thorough surprise to the Mining and Scientific Press. possessing the colors of Mining and Scientific Press...Press. ESTABLISHED 1S«50. Oldest Mining; Journal on the American Continent. e. No. 220 Market Street ,...Carborundum, 1-2. Som Recent Output of Gold in California and Colorado for '95; Our California Delegation...Delegation in Congress; The Revival of Mining and Mining Machinery; "Jumping," 2. MECHANICAL PROGRESS.— A Drill |  | | Report (volume) | | of Science A. I. M. E____ American Institute of Mining and Metallurgical Engineers Aardrijksk---. Aardrijkskundig...cientlfica Circular Classe classification Company, County Collections Committee Communications Comparative...Devonian development diagram Direcci6n Dissertation district distribution division Doctoral, Document Doctoral...Meteorological, etc. microscopic, etc. Mimeographed Mineral, Mining min. res_ _ _ _ _ mineral resources Mineralog_____...American Institute of Mining and Metallurgical Engineers: Contributions 134, 136-139; Mining and Metallurgy |  | | Report (volume) | | Director Published in the Central Region, Denver, Colorado Manuscript approved for publication November 4...1988), and on December 7, 1989, at the Northwest Mining Association 95th Annual Convention and Trade Show...the Mineral Hill and Warm Springs mining districts, Blaine County, Idaho: Idaho Bureau of Mines and Geology...Deposits in the Lake Creek Mineralized Area, Blaine County, South-Central Idaho By Bradford R. Burton and...Mineral Deposits in the Washington Basin Area, Custer County, South-Central Idaho By J. Brian Mahoney H. Mineral |  | | Report (volume) | | 17 Climate and vegetation. 18 _._ History of mining and present conditions___________________ 20 ..._______________ . Placers __ _ Mineralogy ____________ Mining districts, camps, and properties. Helvetia district_..._______________ _____ Ore deposits _ . Copper World mine ____ _____ _____ Location and topography _ _ History..._____ Black Horse mine _ Leader mine_ '. Isle Royal mine Heavy Weight mine Old Dick mine _______________..._______________ _ Mohawk mine _ ___ Omega mine _. 76 77 78 78 78 78 79 80 84 85 86 87 91 91 91 92 92 98 99 99 100 |  | | Book (edition) | | Agricola. This work gives a detailed account of the mining practices of the time and includes the first factual...plaster, and a score of metals ranging from iron to gold. Metallic ores and industrial minerals are rnined... John Wiley & Sons, New American Institute of Mining, Metallurgical and Petroleurn Engineers, 1960,...energy state than random patterns. Intuitively, a brick wall constructed with carefully positioned bricks...stable and less energetic configuration than a brick wall made with a random arrangement of similar bricks |  | | Book | | Table 3.—Production of coal, iron ore, copper, lead, gold, and silver in the principal producing countries:...territories in population, agriculture, manufactures, and mining ...-..-----.--Mliniall jertachois: lay re@mamyol...MeTMItALONsIOm Del UuseLOlscehnsUs Statistics: Ol MINING eee Qeciee eae oe inne eee cee nena ewe recone...employed during each month, by minerals, in the mining of which more than-2;000iwereiemploy.edil 9022...-/----------------102 Table 46.—Wages paid for contract coal mining, and amount paid in allowances, by states and territories: |  | | Book (edition) | | Agricola. This work gives a detailed account of the mining practices of the time and includes the first factual...plas- and a score of metals ranging from iron to gold. Metallic ores and industrial minerals are mined...References Buseck, pp. Jr., 1968, Affluence F. Jr., Mining, Metallurgical and Petroleum Engineers, 1960,...lower energy state than random Intuitively, a brick wall constructed with carefully positioned bricks...ment provides a more stable figuration than a brick wall and less made energetic con- FIG. 2.5 |  | | Report (volume) | | 27-36. Minneapolis, Minn. American Institute of Mining Engineers: Transactions, vols. 30-35; Bimonthly...Canada. Canadian Mining Institute: Journal, vols. 4-7. Ottawa, Canada. Canadian Mining Review: vols. 20-24...Waterville, Me. Colorado College Studies: vols. 9-11; Science series, nos. 42-46. Colorado Springs, Colo...Colo. . . . Colorado Mining Bureau: Bulletins, nos. 4 and 5; Report State Bureau of Mines, 1902. Denver...Denver, Colo. Colorado School of Mines: Bulletin, vols. 1, 2, and 3, no. 1. Golden, Colo. Colorado Scientific |
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