 | | Report (issue) | | Deposits in Serpentine Rocks Of the Piedmont Upland Maryland, Pennsylvania And Delaware By NANCY C. PEARRE...1082-K The geology, distribution, production, and mining development of deposits of chromite, titaniferous...districts ______ -._-_____-_____-___._. Montgomery County, Md_-_-_---_---_-_-----------_-__--_-_-_Soldiers...Marriottsville districts _-_____-___.___.____ Hollofield district ....._..._....-_-._..-._-.-_-.__._.._...... 709...709 710 711 712 713 714 714 714 714 Bare Hills district....._-____--._-_-_--_---.._.__-_..._._.. Woodensburg-Cardiff |  | | Journal (article/letter/editorial) | | Introduction CHROMIUM DEPOSITS of Maryland and Eastern Pennsylvania WINSLOW H. H A R T F O R D Chemistry...Pennsylvania, gold from North Carolina, and chromium from Maryland and Pennslyvania. Because stainless steel and...technology came after the practical exhaustion o f the Maryland chromium ores, the mines are small and many have...yellow." 2 Opening at Choate mine, Soldiers Delight, Baltimore County, Maryland. Paul Clifford of Rocks and...heavy black mineral. Brought by sledge from the mine to tributaries of the Ob, and rafted to the Arctic |  | | Journal (issue) | | • T • U. S. NEEDS SCIENTISTS Our country is in reed of scientifically trained meo and women for defense...in the southwestern part of Las Animas County, is the coal mining center of southern Colorado. It has a...population of 14,000 (this does not include the nearby mining camps) and js situated on the old Santa Fe Trail...side canyons which flow into the main canyons. Each mine has a camp with st~res, garages, and houses for...either side of the dikes. Jeffries Coal Mine The Jeffries Coal Mine is 3 miles south of Trinidad on Raton |  | | Journal (issue) | | Newsletter $2.00 from the Mill Creeli. Quarry Polk County, Oregon John Cornish 40 Cedar Glen Lane Port Angeles...these. The Mill Creek quarry is located in Polk County, off of Highway 22, just east of Buell (Fig. 2)...Approximately two miles from the highway one passes the county-maintained Mill Creek Picnic Area. Just beyond...outward from several quartz aggregates with black clinochlore on orange stilbite, photo by Rudy Tschernich...that he always has well labeled as to the specific mine and possibly level. I also told him to consider |  | | Report (edition) | | with cubic and octahedral cleavages, Pequea silver mine; middle left: azurite crystals on calcite, “old”...from the owners of the land, from the quarry or mine operators before entering to collect. (Land ownership...particular site, remember it is possible to visit the county courthouse in which the site is located, and trace...Penrose Ambler and Betty Clauser); and review (Juliet Reed and M. Anne). Many of the same individuals have...tested copper by Benjamin Franklin. In 1732 Gap mine land was owned by the honorable Proprietors Thomas |  | | Journal (issue) | | Zacatecas, Mexico (perhaps the largest example from the mine in 25 years) In conclusion, if the reader generally...specifically at Bloemfontein itself, but in that district within Free State are the Jagersfontein, Koffiefontein...WeberPerloff micromount collection that went to the LA County Museum, or the Cureton type specimen collection...be from the Tonglushan Copper Mine, near Daye, Hubei Province. This mine is said to be among the oldest...oldest in all of China, with evidence of mining dating back to the 11 century B.C.(!). The crystals occur |  | | Catalog/List | | S.A. Old No. l Headfnme. Whi ■ key Hlll Mine, Tuohnne County, CaUfomla (r■-,u. .SV•t- tor cr11•t•J...association. Few of the minute crystals you see on mine or quarry dumps or even on cabinet specimens will...dumps or surface float. Mirute crystals seen on a mine dump are a clue but nearly always tao weathered...on feldspar. 784 ADAMITE, Moha\'.1k Mine, San Bernardino County, r.alifornia. Group o f colorless to...785 ADAMITE (CUPRIAN),MohawkMine, San Bernardino County, California. Nicely spaced transparent jade green |  | | Book (volume) | | Dahlonega Co. and Rabum Co., and the McDuffie County Belt extending through portions of McDuffie, Warren...Sphalerite. BALDWIN COUNTY MILLEDGEVILLE, at state farmjasper. BANKS COUNTY COMMERCE, along Hwy. 59...along adjoining Co. linerock crystal. BARROW COUNTY WINDER, along rd. to Jefferson and 1½ mi. inside...Guide for Rock Hounds in the United States BARTOW COUNTY AREA, Saltpeter Cave, as floatjasper. CARTERSVILLE:...agate, (banded, various colors), jasper. BIBB COUNTY MACON: at Holton Quarry, 7½ mi. NWagate; N |  | | Report (edition) | | Adams County 15 Allegheny County Armstrong County Berks County Blair County Carbon County Chester...Chester County Cumberland County Delaware County Fulton County Lancaster County Lebanon County Lehigh County...County Monroe County Northampton County Sullivan County York County 18 20 21 23 . 25 28 37 38 39 ...the rockhound, of the land, or from quarry and mine operators, before entering to collect. This will...pseudomorphs after pyrite found near Columbia in Lancaster County, described in this report. If the only description |  | | Report (edition) | | of a thin slice of serpentinite from Lancaster County showing olivine (blue-green and red), serpentine...localities, the Grace mine in Berks County, the Stillwell quarry in Lancaster County, and the Medusa Cement...Cement Company quarry in York County, are now This fourth printing is essentially closed to collectors...Adams County 23 Allegheny County 31 . Armstrong County Berks County Blair County Carbon County Chester...Chester County Clinton County Cumberland County Dauphin County Delaware County Fulton County Lancaster County |  | | Journal (issue) | | CONTENTS HISTORIC MINERAL FEATURE The Mineralogy of Maryland: A Hiswrical Sketch by Jay L. Lininger HISTORIC...MINERAL FEATURE A History of Chromite and Copper in Maryland: The Tyson Years by Sally Newcomb HISTORIC MINERAL...the Copper Mine at Bare Hills, Maryland by Herbert C. Moore HISTORIC MINERAL FEATURE Maryland GOLD by Walter...MINERAL FEATURE William Keith's Copper Mine: Prelude to the Maryland-Pennsylvania Border War by Paul Chrastina...by Jay L. Lininger 125 HISTORICAL MINING CERTIFICATES The Maryland Gold Company by Walter A. Goetz 128 |  | | Journal (article/letter/editorial) | | with its representation of mining tools clearly proclaim Montana’s mining origins. Montana’s production...published describing the occurrence, collecting, mining, and cutting of the two state gemstones. Figure...2. Granville Stuart established Montana’s first mining camp at Gold Creek in 1860. Geologic Provinces...view showing the Indian Queen mine ca. 1905 at Farlin, Beaverhead County. 208 ROCKS & MINERALS Downloaded...mines at Butte in Silver Bow County and the Black Pine mine in Granite County have produced many fine crystal |  | Ye, Zaojun, Kesler, Stephen E., Essene, Eric J., Zohar, Pamela B., Borhauer, Jeffrey L. (2003) Relation of Carlin-type gold mineralization to lithology, structure and alteration: Screamer zone, Betze-Post deposit, Nevada. Mineralium Deposita, 38 (1) 22-38 doi:10.1007/s00126-002-0265-8 | Journal (article/letter/editorial) | | Sciences, University of Michigan, Ann Arbor, MI 48105, USA E-mail: Skesler@umich.edu P.B. Zohar Barrick Goldstrike...Elko, NV 89803, USA J.L. Borhauer SNC Lavalin America, Inc., P.O. Box 29, Elko, NV 8903, USA horizontal...Carlin-type deposits. Because Screamer was not exposed by mining at the time of this study, all work is based on...the dominant northeast-trending faults in the district (Teal and Jackson 1997). Relation of gold grade...6. 5 Dolomite + kaolinite + quartz + 2H2O = clinochlore + 5 calcite + 5CO2 7. Rutile + quartz + calcite |  | | Journal (article/letter/editorial) | | Mineralization in a Portion of the West Shasta District, California MARK H. REED Departmentof Geology,Universityof...3to5. Introduction THE West Shasta copper-zinc district lies in the shorttonsat 3.09 percent Cu and 1...summarizedin Figure I andby Kinkel et al. (1956). Mining of copper-zincore with by-productsilver wasmostactivebetween1898...productionthrough1946 from the nine principalminesin the district shows that 10.4 million short tons of ore were... lavasassociatedwith vol- 1299 1300 MARK H. REED Kennett •_•-• O-400ft. o Balaklala Rhyolite |  | | Report (edition) | | .... . .. . Adams County .... . .. ... ............... . . ... . Allegheny County .... . ...... . ............ . Armstrong County . . . . . . .. . .... ........ .. . .. . Berks County ..... . ..... ......... ...... . Blair County . . .. . ... ... . . .. . .... ........... . Carbon County ..... ..... .............. . Cl1ester County .... . . . .... ... ........... . .. . Cumberland County ...... . ..... . ....... . . Delaware County ... . .. .... . . . .... . . . .. . . . .. . Fulton County . ...... .. . . . |  | Schardt, C., Cooke, D. R., Gemmell, J. B., Large, R. R. (2001) Geochemical Modeling of the Zoned Footwall Alteration Pipe,Hellyer Volcanic-Hosted Massive Sulfide Deposit, Western Tasmania,Australia. Economic Geology, 96 (5) 1037-1054 doi:10.2113/gsecongeo.96.5.1037 | Journal (article/letter/editorial) | | precipitation from geothermal and epithermal fluids (Reed and Spycher, 1984; Drummond and Ohmoto, 1985; Seward...Seyfried and Bishop, 1981; Seyfried and Mottl, 1982; Reed, 1983, after Heinrich, 1996). To date, there have...conducted using SOLVEQ and CHILLER (Reed, 1982, 1998; Spycher and Reed, 1990a, b). SOLVEQ calculates the...depositional processes can be tested using CHILLER (Reed, 1998). CHILLER can simulate water-rock reactions...ore genesis and associated processes (Spycher and Reed, 1990a, 1998). Of the many reaction path options |  | Runyon, Simone E., Nickerson, Phillip A., Seedorff, Eric, Barton, Mark D., Mazdab, Frank K., Lecumberri-Sánchez, Pilar, Steele-MacInnis, Matthew (2019) Sodic-Calcic Family of Alteration in Porphyry Systems of Arizona and Adjacent New Mexico. Economic Geology, 114 (4) 745-770 doi:10.5382/econgeo.4661 | Journal (article/letter/editorial) | | E. University Ave., Laramie, Wyoming 82071-2000, USA 2 Geophysical Laboratory, Carnegie Institution...5251 Broad Branch Rd. NW, Washington, D.C., 20015, USA 3 Lowell 4 Department Institute for Mineral Resources...1040 East Fourth St., Tucson, Arizona 85721-0077, USA of Earth and Atmospheric Science, University of...Ninetysix Hills in Arizona and the Central mining district in New Mexico. These new occurrences are compared...deposit (Pima district), the Ajo mining district, the Tea Cup pluton (Kelvin-Riverside district), and the |  | | Journal (article/letter/editorial) | | Washington99164-2812 0361-0128/84/366/1880-17$2.50 1880 BRUCE MINE GEOCHEMISTRY 1881 113015' •AGDAD 113010' ß ' '...able,includingthe AmuletA mine(BeatyandTaylor, 1982), the Kidd Creek mine (Beaty and Taylor, 1980), and...GENERAL STRIKE & DIP FII GABBRO &ANORTHOSITE [] MINE • HILLSIDE MICA SCHIST 2BRUCE &OLD DICK F .,'...Dick rhyolite is the footwall of the depositin the mine. The lens thins toward its marginsand pinchesout...ch lies alongthe andesite-rhyolitecontactin the mine area. The schistcontainsthin bandsof pyrite, parallel |  | | Book | | T. J. Bornhorst, P. Brandes, R. Clark (Cliffs Mining Services Co.), B. C. Cornilsen, R. V. Dietrich...helpful suggestions throughout the project; to Ashton Mining of Canada, Inc. and Crystal Exploration, Inc.,...Michigan Department of Environmental Quality, Robert C. Reed, former Deputy State Geologist, and Tiger Salotti...APPENDIX I: MICHIGAN MUSEUMS AND EXHIBITS FEATURING MINING, MINERALS, ROCKS, AND FOSSILS .......................243 APPENDIX II: MINERAL SPECIES LISTED BY COUNTY ...............................248 ABOUT THE AUTHORS |  | | Report (issue) | | particular service in co- operating with the State ^Mining Bureau in making possible this addition to our...a part of the Fourth Annual Report of the State Mining Bureau, by Henry G. Hanks, who was then quently...the thirty years which elapsed since the State Mining Bureau. appearance of the second list, our knowledge...literature of a general nature on Die geology and mining industry of the State. The various kinds of minerals...Woodcock, formerly of the State Mining Bureau. Walter W. Bradley of the State Mining Bureau, M. Vonsen of Petaluma |  | | Journal (issue) | | No. 1 LARGE ANDALUSITE CRYSTALS FROM CAMPBELL COUNTY, VIRGINLA Richard S. Mitchell1,William F. Giannini2...veins at a previously unknown site in Campbell County, Virginia (Giannini and others, 1986; Figure 1)...petrographic studies of thin sections of Virginia rocks (Reed and Jolly, 1963; Smith and others, 1964). The deposit...miles east of Lynch Station in southern Campbell County, Virginia. The Universal Transverse Mercator (U...Resources /rCarnpbell County Figure 1. Location of deposit in Campbell County, Virginia. not common |  | | Report (Issue volume) | | continents and large regions. Conflicts between mining and other uses, such as recreation and urbanization...this value is from the Cornwall mine, but the ore body of the Grace mine near Morgantown appears to be...Q The Friedensville zinc mine in type F is clearly the third largest mine in the state after Cornwall...type. The Gap nickel mine and the chromite deposits of the State Line district follow at $5-7 million...Valley Cashtown Orrtana Carr Hill Fairfield (Mell's mine) McNair farm Fairfield SW Jacks Mtn. Tunnel Hill |  | | Journal (article/letter/editorial) | | Tourmaline on quartz, Cruzeiro mine, Minas Gerais, Brazil. Los Angeles County Museum of Natural History specimen...Pelt photo. MarcWApril: Beryl and calcite, La Pita mine, Maripi Boyacii, Columbia. Cal Graeber, Leonard... near Badger Creek, north of Coaldale, Fremont County, Colorado. Dave Bunk specimen, Jeff Scovil photo...(Herkimer “diamonds’’), Treasure Mountain Diamond mine, near Little Falls, New York. Uli Bahmann specimen...SepteniberlOctober: Gold, Smuggler Union mine, Telluride district, Colorado. Colorado School of Mines Museum |  | | Journal (article/letter/editorial) | | 193; anal. by, 195 Aureole of Nahant Gabbro, Mass., USA, chemical mineralogy of, anal., paragenesis, metamorphism...new amorphous copper carbonate from the Carr Boyd Mine, Western Australia, 97 BRINDLEY (G. W.), Motukoreaite--additional...and iron-bearing sulpharsenides, English Lake District, anal., paragenesis, formation, 389 Co-Ni disulphide...A rare-metal-rich Precambrian pluton, Colorf~do, USA, 959 Diaboleite, Arizona, chemical stability, 9oi...on low-grade metamorphism--southwestern Brewster County, Texas, 479 Drugmanite, Belgium, descr., cryst |  | | Book (volume) | | Most specimen collecting is done in the Lead-Zinc mining dists. of northwestern Illinois, the glacial drift...600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip mine⎯pyritized gastropods |
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