 | | Report (issue) | | DESCRIPTIVE MINERALOGY OF PENNSYLVANIA 104 Na 2Al 2 Si3 Oi .2H 2 O; SiO 2 47.4, A1 2 O 3 26.8, Na...Na 2 O 16.3, Lenni, Delaware County. Crystals. Eyerman, 1911, 11. Composition: Analysis: Fe 2 O3 CaO...Sp.gr LOCALITIES: Berks County: Birdsboro, and Gickerville; Delaware County: Leiperville, Lenni (druses...colorless crystals), Felton's farm (Chester), and Ward's quarry; Montgomery County: Sumneytown, and Perkiomenville...cut east of Reading (probably Birdsboro), Berks County. White, Smith, 1910, 540. silky mass of radiating |  | | Report (issue) | | BULLETIN No. 2 A Preliminary Report on the Corundum DEPOSITS OF GEORGIA BY FRANCIS P. KING Assistant...Geologist BULLETIN No, 2 A PRELIMINARY REPORT Corundum Deposits or GEORGIA FRANCIS P. KINO Assistant...OF CORUNDUM 9 9 Early History History of Corundum in the Eastern Hemisphere History of Corundum in...Nomenclature of Corundum CHAPTER VARIETIES OF . . . . 11 . 13 21 II. CORUNDUM 23 23 Introductory...Remarks Sapphire Corundum Emery Physical Properties Artificial Production of Corundum CHAPTER 24 26 |  | | Report (issue) | | Serpentine Rocks Of the Piedmont Upland Maryland, Pennsylvania And Delaware By NANCY C. PEARRE and ALLEN V...talc, asbestos, magnesite, sodium-rich feldspar, corundum, and serpentine UNITED STATES GOVERNMENT PRINTING...districts ______ -._-_____-_____-___._. Montgomery County, Md_-_-_---_---_-_-----------_-__--_-_-_Soldiers...----.._-_-_-------_-----_-----------_----West Chester district...-_._.. --__- .. .._.__ Philadelphia.....____.___._... Cedar Hill (Geiger) quarries._--_.-_-----__.____ West Chester district...___.____-________ |  | | Report (volume) | | DIRECTOR THE OCCUIIRENCE AND DISTRIBUTION CORUNDUM IN THE UNITED STATES BY JOSEPI-I HYDE PR.ATT...Modes of occurrence of corundum ...... ................,_................ Corundum in peridotites...._ ...... Corundum in biotite, contact on saxonite .............................. U 1.1 19 Corundum in enstatite.....1. 20 Corundum in serpentine . _.........._....__...........__....-_..--.._.. Corundum in chlorite-schist.... 20 21 Corundum in amphibolite ................................. ........ 21 Corundum (emery) in |  | | Report (volume) | | Apatite . 6. 7. 8. 9. 10. Orthoclase Quartz Topaz Corundum Diamond The numbers preceding each mineral indicate...rated as 10, is many times harder than corundum, rated as 9. Corundum is placed next to diamond only because...all other green stones (Smith, 1949, p. 175). Corundum was referred to as "oriental" because the first...pale-green beryl to blue, violet corundum to rose pink, and yellow corundum to colorless. Dyeing is another...as synthetic alexandrite is actually synthetic corundum. A stone of simple chemical composition generally |  | | Report (volume) | | GEOLOGICAL SURVEY - CHARLES D. WALCOTT, DIRECTOR CORUNDUM ITS OCCURRENCE AND DISTRIBUTION IN THE UNITED...__..-.._.__.--...- -18 Physical properties of corundum ......................................... 1.5...composition of corundum ........................................ Determination of percentage of corundum in an...---..-.-..-..-...-,.-..--..-.....Sapphire or gem corundum ........_...'.................--..-.-. .........--.-.... Corundum......-....-.-.......--.......-......--......--........_... Block corundum......... |  | | Journal (article/letter/editorial) | | their products. This service is free. As the Pennsylvania Dutch would say it, "1954 iss abot all". Merry...no law against moving parts of New England to Pennsylvania. Dr. Arthur Hopkins and Frank Hankins are trying...the President of The Mineralogical Society of Pennsylvania, Dr. Arthur Hopkins, for her superb collection...some years ago at the old Brinton Quarry in Chester County, Pa., a Dana locality now prety well caput...All three minerals have been found in Chester and/or Delaware County, Pa. While on the subject, hitting |  | | Report (volume) | | https://archive.org/details/corundumperidoti01prat CORUNDUM AND THE PERIDOTITES OF WESTERN NORTH CAROLINA...SURVEY J. A. HOLMES, STATE GEOLOGIST VOLUME I CORUNDUM AND THE PERIDOTITES OF WESTERN NORTH CAROLINA...GEOLOGIST J. A. Holmes Chapel Hill. LETTER OF TRANSMITTAL Chapel Hill, N. C., April 1, 1905. To His...Carolina Geological Survey, a description of the Corundum and the Peridotite Deposits of Western North Carolina...I.—The corundum belt of North Carolina. General geology of the State. Geology of the corundum belt. Rocks |  | | Book (edition) | | Orthoclase 1. Talc 2. Gypsum 7. Quartz Topaz Corundum 10. Diamond 3. Colcite 8. 4. Fluorite 9. ...actually 42.4 times harder than talc hard as corundum. field rests, the following information is...right) CHRYSOBERYL EPIDOTE PERIDOT SPHALERITE CORUNDUM FELDSPAR ^ PHENACITE SPODUMENE DANBURITE...elements such as diamond (carbon), oxides such as corundum (aluminum oxide), carbonates such as malachite...with tiny golden flakes of mica, and quartzites. Corundum, — — spinel and garnet are associated with |  | | Book (edition) | | mmed at Broken Arrow aud Trout creek, in Sc. Clair county. The strata in this field are more faulted und...prong of Canoe creek, in St. Clair county, to Ha\sop creek, in Bibb county, a distance of 60 miles. Down to...to Helena, in Shelby county, the field has an average width of 5 or 6 miles. Below that point the width...miles being in the latitud" of Blocton, in Bibb county. The south ern end of this field has a greater...Jefferson county; Helena, Montevallo, and Brierfield, Shelby county; and at Blocion. Bibb county. The Warrior |  | | Book | | Jersey: L a k e Hopatcong, Greenwood L a k e Pennsylvania: S c h u y l k i l l R i v e r Vi r g i n i...rivers f o r epidote, unakite, blue quartz, agate, chalcedony, petrified wood and other gemstones. Photograph...dollars at the noted locality of Cowee Valley, Macon County, North Carolina. An enthusiastic family found and...visited the well known old Rutherford mine in Amelia County, Virginia, and found bright spessartine garnets...Excited collectors took home from old quarries in Pennsylvania and Maryland, pieces of apple green precious |  | | Report (volume) | | value. Some minerals, such as the copper ores of Pennsylvania, are included in the list not because they occur...North Carolina.. .Dr. Joseph Hyde Pratt, Chapel Hill. North Dakota... .Dr. A. G. Leonard, Grand Forks...Oregon............Prof. A. J. Collier, Eugene. Pennsylvania.... .Mr. R. R. Hice, Beaver. Prof. Florence...Bauxite and Hallpysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found in...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton; |  | | Book (volume) | | as: concretions, Barite and Celestite crystals, chalcedony rosettes, agates, jasper, fossil plants and vertebrate...known for its agates, chalcedony, jasper and gem petrified wood. BUFFALO COUNTY KEARNEY, area gravel...especially to the W of townagate, chalcedony, jasper, petrified wood. CASS COUNTY WEEPING WATER, SE, on rd....Snyderville Quarry chalcedony, jasper, fossils. CHERRY COUNTY VALENTINE, in the Sandhills county along the Niobrara...wood. DAWES COUNTY CHADRON, in N part of Co. and as far W as Crawford and Harrisonchalcedony (some blue) |  | | Report (volume) | | ........................................... Pennsylvania...............................................value. Some minerals, such as the copper ores of Pennsylvania, are included in the list not because they occur...and Ehrenfeld, Frederick, Minerals of Pennsylvania: Pennsylvania Top. and Geol. Survey Comm. Kept. No...Albany. North Carolina_.Dr. Joseph Hyde Pratt, Chapel Hill. North Dakota_.Dr. A. G. Leonard, Grand Forks. Mr...Bauxite and Halloysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found in |  | | Book (volume) | | references, among them may be mentioned: Vermont, Pennsylvania, North Carolina, Oregon, Kansas, Alabama, Ohio...Kobuk jade locality. Descriptions of San Diego County, California, gemstones and the mines in which they...the generous assistance of many residents of that county. My special thanks are extended to Elbert H. McMacken...Optical Effects. PRINCIPAL GEMSTONES Diamond, Corundum (Ruby and Sapphire), Beryl, Topaz, Opal. IMPORTANT...Clinozoisite, Serpentine, Copper Rhyolite, Red Corundum in Amphibolite, Pyrite, Calcite, Howlite, Ulexite |  | | Book (volume) | | that is mostly a mixture of chert, translucent chalcedony, jasp-agate and common opal, rivaling in beauty...ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE...nodules⎯Pyrite (crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay |  | | Book (volume) | | that is mostly a mixture of chert, translucent chalcedony, jasp-agate and common opal, rivaling in beauty...ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE...nodules⎯Pyrite (crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay |  | | Book (edition) | | describes sites under of the nearest town and county. and the many maps included book contain such...(Cro»$-$«ction ot righl) ^ \b7 CHRYSOBERYL CORUNDUM DIAMOND CRYSTALS ffl 1 \ Carlsbad (One twin...nodule may contain a center of surrounded by chalcedony easily discernible quartz crystals that crystalline...mass. Tenacity is a quality closely allied chalcedony and jasper, because of their makeup, are tougher...elements, such as diamond (carbon); oxides, such as corundum (alu- minum oxide); carbonates, such as malachite |  | | Report (volume) | | of 76° 30', from Tompkins County, New York, to Bradford County, Pennsylvania, by Henry S. "Williams. 1884...cents. 16. On the Higher Devonian Faunas of Ontario County, New York, by John M. Clarke. 1885. 8°. 86 pp....57 pi. Price 25 cents. 38. Peridotite of Elliott County, Kentucky, by J. S. Diller. 1887. 8°. 31 pp. 1...Knowledge of the Geology of Texas, by Robert T. HilL 1887. 8°. 94 pp. Price 10 cents. 46. Nature and...5 cents. 58. The Glacial Boundary in Western Pennsylvania, Ohio, Kentucky, Indiana, and Illinois, by George |  | | Book | | as mica, apatite, sphene, zircon, fluroite and corundum are associated with light-colored igneous rocks...combine to form Minerals - " Rubies and Sapphires (Corundum) which combine with Biotite Mica to form R°ck...animal form which was filled in by the iron oxide. Chalcedony, one of the common varieties of quartz, was formed...famous was the single beryl stone found in Oxford County in Maine that weighed 18 tons and was 18 feet in...crystals are parallel. A much-sought-after form of chalcedony, gypsum and hematite is called rosette because |  | | Report (issue) | | CHROME ORES OF SOUTHEASTERN PENNSYLVANIA AND MARYLAND. By ELEANORA BLISS KNOPF. INTRODUCTION. Chromite...throughout the extreme southeastern part of Pennsylvania and the eastern part of Maryland. Deposits of...commercial importance lie along the Maryland-Pennsylvania State line about 4 miles east of Susquehanna...northeast of the small town of Rising Sun, Cecil County, Md. Another deposit that has been recently worked...topography of the Piedmont district of eastern Pennsylvania and Maryland, in which the chromite deposits |  | | Journal (article/letter/editorial) | | the commercial mining of these, such as gold, corundum, mica, and monazite. There have been, however...following: Diamond Spodumene Hiddenite Kunzite Corundum Ruby Sapphire Oriental Emerald Oriental Amethyst...RoseQuartz Praseand Chrysoprase Rutilated Agate Chalcedony Carnelian Moss Agate OF AMERICA Sphene Rutile...westernPiedmont section of the state, and in Franklin County on the eastern edge of the Piedmont. They have...localities. Three diamonds have been found in Burke County, two of which were from near the "Ford of Brindletown |  | | Book (volume) | | 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...botryoidal chalcedony, occasionally with pale Amethysts, or Quartz crystals). CRAWFORD COUNTY PALESTINE...deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E, regional deposits⎯Siderite. FULTON COUNTY FARMINGTON, W...mine⎯pyritized gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason |  | | Book (volume) | | 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...botryoidal chalcedony, occasionally with pale Amethysts, or Quartz crystals). CRAWFORD COUNTY PALESTINE...deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E, regional deposits⎯Siderite. FULTON COUNTY FARMINGTON, W...mine⎯pyritized gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason |  | | Book (edition) | | from the Tourmaline Q ueen .1ine, Pala, San Diego County, California. From a pen-and-ink drawing by W. E...ACKNOWLEDGMENTS 1-X I I PRINCIPAL GEMSTONES Diamond, Corundum, Beryl, Topaz, Opal. II 68 IMPORT ANT GEMSTONES...Gibson's Ruby mine, Cowee Creek, North Carolina 6. Corundum Hill, North Carolina 7. Eldorado Bar, Montana 8....of tourmaline crystal forms 38. Map of San Diego County, California gem sources 3 9. Stewart Lithia· and...View of Clear Creek, San Benito County, California 55. Monterey County jade-producing shoreline, California |
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