 | | Journal (article/letter/editorial) | | CHLORITOID FROM RAWLINSVILLE, LANCASTER COUNTY, PENNSYLVANIA Surt:ey,Washington,D' CANNaHrnrewnN,l [/...AssrRAcr Chloritoid. occurs in a mica schist near Rawlinsville, Pa. Measurements on the universal stage showed...The indices of refraction of chloritoid from Lancaster county are as follows: a:1.7t9, p:1.721 and.7:1.725...all +0.001. The formula calculated for the Lancaster County material on the basis of a chemical analysis...specimen of chloritoid schist near Rawlinsville, Lancaster County, Pa', in December 1939. The chloritoid |  | | Journal (article/letter/editorial) | | 1-25 006 0-82 3-75 1000 1. Rawlinsville, Lancaster County, Pennsylvania, U.S.A. Hietanen (1951, p. 867)...omitted from the calculations. 2. Mt. Herrick, Ira Township, Vermont, U.S.A. Zen (1955). Analyst: Byler. The...been omitted from the calculations. 5. Chatham County, North Carolina, U.S.A. Genth (1873, p. 399). Although...Indian Grave Mountain near Bull Mountain, Patrick County, Virginia, U.S.A. Genth (1890, pp. 49-50). Pure...in the analysed material. 12. Liberty, Frederick County, Maryland, U.S.A. U.S. Ceol. Surv. Bull., No. 113 |  | | Journal (article/letter/editorial) | | te-quartz (4) muscovite-stilpnomelane-chlorite-albite-microcline-quartz (5) muscovite-biotite-quartz-graphite...with the more hydrous assemblage, kaolinite plus albite, taking the place of paragonite plus quartz. Rocks...itself or in association with Quattz, qvattz and albite, or quattz, chlorite in a specimenis easily checked...Chlorite Muscovite Paragonite Chloritoid Chlorite Albite Muscovite Chlorite Quartz Rutile Quartz Rutile...Stilpnomelane Plagioclase(albite) Microcline Quartz Muscovite 35 .4 Chlorite* 23.1 Albite 36 6 1. 1 Anor&ite |  | | Journal (article/letter/editorial) | | hand in hand with the rising metamorphic grade. Albite is the type plagioclase of the greensehist facies...related to partial selective mobilisation of the albite component from the already existing plagioclases...is pictured to contribute higher quantities of albite molecule to build up the mobilised mass, so that...system 4). It seems, however, that the transition albite + epidote-~ oligoelase does take place at the same...- I a and b - - characterized by the assemblage albite-epidote, II a - - showing oligoclase-epidote paragenesis |  | | Report (issue) | | LEAD OCCURRENCES IN PENNSYLVANIA Robert C. Smith, II COMMONWEALTH OF PENNSYLVANIA DEPARTMENT OF ENVIRONMENTAL...ZINC AND LEAD OCCURRENCES IN PENNSYLVANIA Robert C. Smith, II PENNSYLVANIA GEOLOGICAL SURVEY FOURTH SERIES...1977 Copyright 1977 by the Commonwealth of Pennsylvania Quotations from this book may be published...published if credit is given to the Pennsylvania Geological Survey COVER ILLUSTRATION: Photograph of 1852 lithograph...STATE BOOK STORE, P. O. BOX 1365 HARRISBURG, PENNSYLVANIA 17125 PREFACE The purpose of this report is |  | | Journal (article/letter/editorial) | | mariposite,^seven chlorites, and two specimens of albite were obtained from the metamorphic rocks of lie...analysed minerals among the rock groups a Actinolite Albite Barroisite Chlorite Chloritoid Epidote Garnet Glancophane...pyroxenes, blue amphiboles, chloritoid, chlorites and albite. They must therefore, at one time or another have...magnetite through retrograde reactions involving albite and chloritoid. Under the low temperature, high...chloritoid veins. The chlorites of the quartz- albite- chlorite vein rocks, that Bri6re (1920) identified |  | | Report (volume) | | California. Economic geology. Chromite, El Dorado County: Cater, F. W., Jr. Healdsburg quadrangle: Gealey...W. K. Mercur~·, New Almaden mines, Santa Clara County: Bailey, E. H. San Francisco Bay counties: Bowen...Bowen, 0. E , Jr., 3 Mineral resources, Fresno County: Logan, C. A. Geologic maps. Bitterwater Cre€k area:...Am. Jour. Botany-American Journal of Botany. Lancaster, Pa. Am. Jour. Sci.-American Journal of Science...Annals-Association of American Geographers Annals. Lancaster, Pa. Assoc. Canadienne-Fran~aise Ay. Sci. Annales-Association |  | | Report (volume) | | described. Div. Mines, 1; Jenkins, O. P., Choctaw County, Highway 17 area: 3. Toulmin, L. D., Jr., 3. Minor:...analysis: KelH. D., 5. ler, W. D., 3. Talladega County, hematiteOklahoma, potash agstone, granite magnetite...ground water: Powham, C. E. ell, W. J., 4. Marengo County: Newton, J. G., 1. Core-drilling program, ChattanooMica:...J.,4. Excursion, Tertiary type-localiMontgomery County: Reade, ties: Rainwater, E. H. , 1. H. L. , Jr...Harris, H. B. trolled: Braunstein, J., 3. Escambia County: Cagle, J. W. ,Jr. Pollard field: Jones, W. B. |  | | Book (volume) | | separation of small amounts of metallic iron. The albite-fayalite system (Bowen and Schairer, 1936) has...eutectic at 1050°C., and composition 84 wt. per cent, albite. The phase relationships in the system NaAlSiC>4-Fe0-Si02...trachytes. The composition of the fayalite-tridymite-albite eutectic (980°C.) approximates to the composition...rhyolites, and the ternary eutectic fayalite-nepheline-albite (990°C.) to the fayalite phonolites and trachytes... 5, vol. 29, -- 1936. 22, p. 345. The system albite-fayalite. Proc. Nat. Acad. Sci. U.S.A., vol. |  | | Report (volume) | | are as follows: COLORADO. Mineralogy. Montrose County, uranium-vanadium deposits: Weeks, A. D., 13R....origin of hard hematite: Park, C. F., Jr., 6. Pennsylvania, eastern: Gray, C., 10. Use of index. In general...Iron, Cook County, titaniferous magnetite: Grout, F. F., 5. IRON. Minnesota, Cook County, titaniferous...Journal. Birmingham, Ala. Ala. Geol. Survey Bull.; County Rept.; Inf. Ser.; Map; Mus. Paper; Special Rept...Rept. Alabama Geological Survey Bulletin; County Report; Information Series; Map; Museum Papers; Special |  | | Report (issue) | | metallization in the Central mining district, Grant County, New Mexico, by W. R. Jones, R. M. Hernon, and...sediments of the Humboldt River Valley, Humboldt County, Nevada, by Philip Cohen________ 165. Variable...172. End moraines on Kittatinny Mountain, Sussex County, New Jersey, by James P. Minard____________________...water from the Ashley Valley oil field, Uintah County, Utah, by R. D. Feltis and H. D. Goode _______...Geology of the ~ount Wheeler mine area, White Pine County, Nevada, by Donald H. Whitebread and Donald E. |  | | Report (volume) | | Fe2SiO^ are separated from Mn^SiO^ and CaMnSiO^, and albite, NaAlSi^Og, is separated from its boron analogue...garnet, Wlssahickon formation, Philadelphia, Pennsylvania. Can. Mineral,, 15, 243-249. 59 Cressey,...metamorphosed Triassic conglomerate in York County, Pennsylvania. Am. Mineral., 23, 430-435. Strens, R.G...breccias from the Blue Jay mine, Jamestown, Boulder County, Colorado. Am. Mineral., 37, 659-666. Ramdohr,...Piedmont. P r o c e e d i n g s "The Caledonides in the USA, IGCP project 27: Caledonide Orogen," V P I & SU |
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