 | | Report (issue) | | Strategic Graphite A Survey By EUGENE N. CAMERON and PAUL L. WEIS CONTRIBUTIONS TO ECONOMIC GEOLOGY...___________________-__--_---__------__--____________ The graphite problem--__-_____-----------------_---_._____...occurrence of natural graphite._-_.._._.___ Minerals associated with various types of graphite.____________________...production.________________________ Geology of graphite deposits in the United States__-_._________--...deposits in carbonate rocks._________________ Graphite resources and reserves.__________________________________ |  | | Report (issue) | | GRAPHITE. By HENRY G. FERGUSON. INTRODUCTION. Natural graphite may be either crystalline or amorphous...amorphous. Crystalline or flake graphite is commonly understood to mean graphite in crystals of sufficient size...amorphous graphite shows a crystalline structure under the microscope. Crystalline graphite occurs either...either in veins, as in the Ceylon deposits, or as flakes disseminated through the country rock, as in many...the United States. Most deposits of amorphous graphite are the result of the alteration of coal bed's |  | | Journal (article/letter/editorial) | | GRAPHITE DEPOSITS OF ASHLAND, ALABAMA? JOHN S. BROWN. CONTENTS. Introduction .....................themetamorphic rocks ................................ Graphite ...................................................... Massive graphite andgraphite veins ................................. Graphite inTalladega slate...Surv.of Alabama, •923, PP. t3, 98. 208 GRAPHITE DEPOSITS OF ASHLAND, ALABAMA. 209 County,the other... Productiongraduallyincreaseduntil about 1913 Alabama became,and has still remained, the leadinggraphite-producing |  | | Report (issue) | | technical in£onnati6n relative to· the p~oduetion of Graphite v?ill form a part of the volume• or volmne.s on...••• ••• Quebec ... • ••• • •• ••• Baffin Island Ceylon India Australia .. •• •• ••• • • I ••• •••...especially mica,, whicl1 is freque,n tly present in graphite- deposits. The useis of grapl1ite, aJ.~e n ume1"0...Mexican, Bavarian, and Ceylon g·1,aphites in about equaJ p1·oportio11s. A flake graphite of l1igh graphitecontent...the trade sense, and refers to that variety of graphite in which the particles are so fine as to give |  | | Report (issue) | | Strategic Minerals Inventory Summary Report-Natural Graphite Prepared as a cooperative eflort among earthscience...Strategic Minerals Inventory Summary Report-Natural Graphite By Ulrich H. Krauss, Helmut W. Schmidt, Harold...Congress Cataloging in Publication Data Natural graphite. (U.S. Geological Survey circular; 930-H) "Prepared...Bibliography: p. Supt. of Docs. no.: I 19.4/2:930-H 1. Graphite. I. Krauss, Ulrich H. II. Series: U.S. Geological...inventory information about major deposits of graphite, one of the mineral commodities selected for the |  | | Journal (issue) | | NATURAL COLORING MATTER OF MINERALS , NOTES BY K GRAPHITE , STUDENTS ' MINERALOGICAL CLUR OF PHILADELPHIA...east side of the ancient isthmus — now Rensselaer County, N. Y. — is another large deposit of the same material...riud this formation again until we reach Ulster County, where it has bi^en carried up by the elevation...continues on along the eastern border of Sullivan County, into New Jersey and Pennsylvania, making the Kittatinny...rocks are not known west of Lake Huron. In Oneida County, N. Y., the conglomerates of this epoch are — in |  | | Journal (article/letter/editorial) | | ORIGINAL PAPERS AND DISCUSSIONS. STRUCTURE OF GRAPHITE IN RELATIONSHIP TO CRUCIBLE MAKING. BY RRINHARDT...American graphite crucible manufacturers were confronted with the necessity of using American graphite, altogether...altogether or in part, as a substitute for Ceylon graphite, on which they had previously depended almost...unsatisfactory, as compared with those made of Ceylon graphite. The problem was then raised as to why crucibles...containing, American graphite flakes should not be as efficient as those made of Ceylon graphite; and, if possible |  | | Report (issue) | | Graphite Chapter J of Critical Mineral Resources of the United States—Economic and Environmental Geology...http://periodic.lanl.gov/images/periodictable.pdf. Cover. Graphite. U.S. quarter for scale. Mineral collection of...Photograph by Andrew Silver (BYU index 1-1023a). Graphite By Gilpin R. Robinson, Jr., Jane M. Hammarstrom...Jr., Hammarstrom, J.M., and Olson, D.W., 2017, Graphite, chap. J of Schulz, K.J., DeYoung, J.H., Jr.,............... J1 Commercial Classifications of Graphite.............................................. |  | | Journal (article/letter/editorial) | | Deposita 22, 18-25 (1987) © Springer-Verlag !987 Graphite deposits of Sri Lanka: a consequence of granulite...Kensington, N.S.W., 2033, Australia Abstract. The vein graphite deposits of Sri Lanka are located in a Precambrian...dominated by granulite facies rocks. The vein graphite has been interpreted as being of solid phase lateral...transport through the crust, the origin of the graphite is proposed to be the direct consequence of granulite...and precipitation of vein graphite. Textures and structures of the vein graphite indicate syntectonic deposition |  | | Journal (article/letter/editorial) | | The origin of epigenetic graphite: evidence from isotopes PAUL L. WElS U.S. Geological Survey, Spokane...syngenetic graphite, epigenetic graphite, and graphitic marble suggests that syngenetic graphite forms only...rock. Epigenetic graphite forms only from carbonaceous material or preexisting graphite. The reactions...about 50-100°C lower. INTRODUCTION THE ORIGIN of graphite has been debated by geologists for very many years...organic matter in sediments may be converted to graphite by metamorphism (WALCOTT, 1898; BASTIN, 1910; |  | | Report (volume) | | porphyroids ..... ......................... Corundum in graphite -..............----...---.-.---....-.-.--.Minerals...United States Continued. Page. Corundum Continued. Alabama ...-.......-......-.-..........:.................the United States......... .................^. Alabama ..........................-..-.-.....----..----.......................... 153 Burma, Siam, and Ceylon ......--.-..--..-..--....---..-.--.......... Turkey... II. Outcrop of peridotite at Buck Creek, Clay County, N. C........ III. A, Corundum in chlorite at Corundum |  | | Report (volume) | | .................................. 33 35 36 Graphite.................................................manganese ores and alloys, platinum, aluminum, pyrite, graphite, stone, potash, and magnesite. In the discussion...Tennessee; and the Birmingham and other districts of Alabama on the south. Of these coals, those available in...the advantage in this respect will fall to the Alabama mines, which are being made more easily and cheaply...military service can not fail to reduce the output of mine and furnace and to enlarge the demand for American |  | | Journal (article/letter/editorial) | | THE RED ROSE TUNGSTEN NORTHERN JOHN BRITISH MINE, COL UMBI. dl.• S. SXv.VV.NSON. The writer visitedthe...probably will not be developedduring the war. Graphite on the Labrador coast is being tested. GEOLOGIC...AND DEPOSITS RESULTS OF THE L. W. OF WORK ON GRAPHITE UNITED STATES. •' CYU'RRIER. Before the War the...the country's needs for commercial"flake" graphite suitable for crucibles were supplied almost entirely...entirely by importation from Madagascarand Ceylon,and Madagascargraphitehad largely supplanted Ceylongraphite |  | | Book | | known polymorphous substances are: Diamond and Graphite (C) Pyrite and Marcasite (FeS,) Calcite and Aragonite...the same, no matter where the mineral is found. Graphite is always black, pyrite always brassy yellow,...mineral can be bent. Try this with a flake of graphite. ELASTIC. The mineral snaps back after bending...good deposits in Arkansas. The most famous diamond mine is the Kimberley, but this once richest of all diamond...Cleavage---perfccc octahedral Hardness-10 GRAPHITE - Carbon - C The name "graphite" comes from the Gret!k word meaning |  | | Journal (article/letter/editorial) | | GEOLOGIST AUGUST, 1912 No. 5. THE GRAPHITE DEPOSITS OF CEYLON. A REVIEW OF PRESENT KNOWLEDGE WITH A...SIMILAR GRAPHITE DEPOSIT NEAR DILLON, MONTANA2 . EDSON' S. BASTIN. INTRODUCTION. The graphite depositsof...depositsof Ceylon are of especialinterest to Americans becausemost of the graphite used in this country comes...for many years been the largest consumerof the Ceylon material Much has been printed in regard to these...print as early as •68•, the graphitedepositsof Ceylon were not exploiteduntil sometimebetween 182o and |  | | Journal (article/letter/editorial) | | (1970) Geology o~ Bogala Mine, Ceylon and the Origin of Vein-Type Graphite GEORGE ERDOSFt Department...University of Ceylon, Peradeniya, Ceylon The unique vein-type graphite deposits of Ceylon occur in high-grade...Precambrian metasedimentary series. At the Bogala graphite mine, the rocks are of the granulite and almandine...minerals than pure graphite. Each vein is made up of a number of parallel graphite sheets oriented parallel...parallel to the vein. It is suggested that the Ceylon graphite veins, and possibly all similar deposits, form |  | | Journal (article/letter/editorial) | | MINERAL OCCURRENCES Items On New Finds Are Desired. Alabama—Mr. Ernest Fairbanks, 109th Street, Old Orchard...Co., where turquoise is found as thin veins in graphite schists (Carboniferous). The Erin occurrence is...of black, crystallized ferberite from the Conger Mine, near Nederland, Boulder Co., Colo. It is good to...in Georgia at the fo'lowing localities: Cherokee County —2V2 miles northeast of Ball Ground, 1 mi'e northwest...of Cherry Grove School; Fayette County—near Fayetteville; Fulton County—near College Park. (Georgia Mineral |  | | Journal (issue) | | Canadian Talc in Insulators, I 12 ; The Graphite Deposits of Ceylon, I 14 ; Zircon-Rutile Beach Sands in...Public Analyst for the County of Surrey. Later, Dr. Pariy joined the London County Council as an Assistant...· Report of the Acting Director of Agriculture, Ceylon, for 1942. Pp. 16, 9½ x 6. (Colombo: Government...Office, 1943 ;) Price 35 cents. Agriculture in Ceylon. By W. I. Ladejinsky. Foreign Agric., 1944, 8,...Annual Report of the Tea Research Institute of Ceylon for 1942. Bull. No. 24. Pp. 55, 9¾ x 6. (St. Coombs |  | | Report (issue) | | and tungsten. Critical: Aluminum, asbestos, graphite, platinum, and vanadium. Although in 1938 the...Carolina, in the native from a small vein in Burke County. There is no commercial develop ment and no deposits...Creek, Jackson Gountyj County; posits in the State ari small; Jackson County; small deposits of...Iiidu_3tr-_ial dianond drills, caa be riolcombe Yanoey County. but in case Hcw- in shape, but in North...been found in The four most promising aroas and Mine Fork of Jacks Creok, 1918, its mining possibi |  | | Journal (article/letter/editorial) | | Stable carbon isotopes of graphite from Bogala Mine, Sri Lanka ALBERT DOBNER, WOL~.3ANG GRAF, PAULA ELAJ4N-WEINHEIMER...Hirner~ A. 1978: Stable carbon isotopes of graphite from Bosnia Mine, Sri Lanka. Lithos !1,251-255. Oslo, ISSN...isotopes nC and nC of twenty-four graphite samples from Bogala Mine, Sri Lanka have been determined. The...models for the biogenic or abiogenic origin of the graphite deposit are discussed, Albert Dobner, Bayerisches...transformation of sedimentary organic matter to graphite under metamorphic conditions has been described |  | | Report (issue) | | ----------------------Burma____________________________________ _ Ceylon-----------------------------------Crystalline rocks...nited States of America ___________________ _ Alabama _____________________________ _ Alaska _______...Perce Counties __________ _ Idaho CountY-----------------Valley CountY-----------------Adams, Payette,...and Gem Counties ________________________ _ Boise County ___ --------------Ada, Owyhee, Elmore, and Custer...Spruce Pine district ____________ Madison County and Haywood County _____________________ _ Zirconia district |  | | Book (edition) | | Dakota School of Mines; Professor E. A. Smith, Alabama Geological Survey; ProDr. H. B. fessor G. H. Perkins...glass sand, 178 Graphite, 178 ; of graphite in the United States, 178 graphite, 180 181 ; References...References on graphite, 181 ; References on lithographic stone, 183 nesite, 183 References on magnesite...; ; ; Ochers, 186 Asbestos, 188 ; ; ; Graphite, Other paints, 188 Production of 188 Calcium...306 ; South- Zinc ores alone, ; 308; Sussex County, N.J., 308 Lead and zinc Upper Mississippi Valley |  | | Journal (issue) | | Monica, Monica, California California 90404, 90404, USA USA Fig. Fig. I. 1. This assembled agate specimen...of gemmology gemmology Carl Peter Thunberg and Ceylon gemstones John Sinkankas, Ph.D., Ph.D., GG, GG...9lO9, 9109, USA The literature of antiquity frequently mentions the gem riches of Ceylon, today known...1828. 1828. Uppsala, Historical accounts of of Ceylon gemstones This pleasant, tropical island, lying...large rubellite crystals were found in the pegmatite mine at Sakangyi. Furthermore, Bauer (Spencer transi |  | | Journal (article/letter/editorial) | | unidentified inclu- A SOURCE FOR AND GNEISSES GRAPHITE IN HIGH-GRADE JOSEPHJ. MANCUSOAND RONALD E...icationof limestone.This theory wasalsosupported graphite depositsare commonlyfound in medium- recentlyby...(1921),and thirty yearslater Craig (1954)found graphite,on the other hand, may occur as dissemi- ther...graphiteandtheenclosing "Bastin(1912) believedthe graphite depositof schistsand gneisses have been the subjectof...adjacentsedture for over seventyyears. imentsin which graphite,remobilizedby a granite Erdosh (1970) summarized |  | | Journal (issue) | | rose quartz from the Stearns ledge, in the same County, occurs in as handsome specimens, and does not...out of rose quartz of fine quality from Oxford County, are in the Amer ican Museum Collection, New York...edges as well defined as originally taken. The graphite impregnates the crystals little more than super...adheres tenaciously. What, if any, influence the graphite had upon the form of crystallization of the quartz...out hunting in the woods near Theresa, Jefferson County, discovered a small lot of quartz crystals, which |
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