 | | 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) | | Chromite and Other Mineral Deposits in Serpentine Rocks Of the Piedmont Upland Maryland, Pennsylvania...production, and mining development of deposits of chromite, titaniferous iron ore, rutile, talc, asbestos...asbestos, magnesite, sodium-rich feldspar, corundum, and serpentine UNITED STATES GOVERNMENT PRINTING OFFICE...districts ______ -._-_____-_____-___._. Montgomery County, Md_-_-_---_---_-_-----------_-__--_-_-_Soldiers...----.._-_-_-------_-----_-----------_----West Chester district...-_._.. --__- .. .._.__ Philadelphia |  | | 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 (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) | | 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......... |  | | 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 |  | | Journal (article/letter/editorial) | | correct spelling. East Mineralogical Society of Pennsylvania Lapidary Meeting The pouring rain and howling...following Pennsylvania localities: GROSSULARITE: Berks County: Fritz Island, Dauphin County: Hummelstown...Hummelstown. Delaware County: Leipers Quarry, Lehigh County; Limeport. Philadelphia County: Cobbs Creek Valley...Bucks County: Eden, Finney's Quarry, Hulmville, Mt. Misery, Newportville and Trevose. Chester County: Avondatel...Avondatel, Corundum Hill (Newlin), Craig's Farm (Pennsbury) Goshenville, Johnson and Patterson's Quarry |  | | 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 |  | | 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 (issue) | | SOUTHEASTERN PENNSYLVANIA AND MARYLAND. By ELEANORA BLISS KNOPF. INTRODUCTION. Chromite occurs in numerous...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...Piedmont district of eastern Pennsylvania and Maryland, in which the chromite deposits are situated, is |  | | 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 | | 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...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...green gem spodumene, was discovered in Alexander County, North Carolina, in 1880 and named for one of its |  | | 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; |  | | 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 (volume) | | chalcedony, jasper and gem petrified wood. BUFFALO COUNTY KEARNEY, area gravel bars and pits along the Platte...townagate, chalcedony, jasper, petrified wood. CASS COUNTY WEEPING WATER, SE, on rd. to Nehawka, in the Snyderville...chalcedony, jasper, fossils. CHERRY COUNTY VALENTINE, in the Sandhills county along the Niobrara R. and Minnechaduza...gem qualityagatized and opalized wood. DAWES COUNTY CHADRON, in N part of Co. and as far W as Crawford...cuts, cut banks, breaks, draws and washes, gullies, hill slopes, etc.chalcedony roses, Celestite crystals |  | | Report (volume) | | ..........'............................. 20 Chromite --...-....-.---.-..--.....--.....-.---....--.-...... ............'...... 60.45 .55 23.22 .55 Chromite ..... ....---- .---- --.-------.---.12 Magnetite...From the Silver King mine, Calico, San Bernardino County, Cal. Specific gravity, 6:28. Analysis by W. H...From .Teocalli Mountain, Brush Creek, Gunnison County, Colo. Specific gravity, 7.400 at 14.5°, corrected...vol. 3, pt. 1, p. 46. From the Rose mine, Grant County, N". Mex. Specific gravity, 6.644 at 20°. Probably |  | | Journal (article/letter/editorial) | | (manganoan) varieties are found at the Harding mine, Taos County, New Mexico (Jahns and Ewing 1977). Fuchsite is...and fluorite. A classic association from El Paso County, Colorado, is well-crystallized zinnwaldite with...the 50:50 composition. The Morefield mine, Amelia County, Virginia, has produced many excellent large crystals...blue calcite from the Crestmore quarry, Riverside County, California, are typical of the species; a recent...Diego County, California. Figure 9. Dark zinnwaldite crystal in albite, Rockport, Essex County, Massachusetts |  | | Book (volume) | | 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...HIGHLAND COUNTY SINKING SPRING, area ore deposit (most important in Ohio) ⎯Hematite. HOCKING COUNTY AREA |  | | Book (volume) | | 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...HIGHLAND COUNTY SINKING SPRING, area ore deposit (most important in Ohio) ⎯Hematite. HOCKING COUNTY AREA |  | | Report (issue) | | .........................................96 Pennsylvania ..............................................type" talc deposits, based on Waterbury and Barnes Hill localities (Chidester, 1962) ......14, 15 2. Geologic...Georgia, North Carolina, Virginia, Maryland, Pennsylvania, Massachusetts, Vermont, and New York. Districts...talc-chlorite schist. Most of the talc deposits in Pennsylvania are in altered serpentinite and are similar..."Vermont-type" talc deposits, based on Waterbury and Barnes Hill localities (Chidester, 1962). Scale approximately |  | | 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 |  | | Report (issue) | | ___________ Clinochrysotile (Globe-type), Gila County, Ariz___________________________________________...Stillwater County, Mont_________________________ Clinochrysotile and lizardite (deweylite) Forest Hill, Harford...Harford County, Md____________________ Clinochrysotile and lizardite, Morris County, N.J_______________...Clinochrysotile and lizardite, variant form, Morris County, N.J.____________________________ Lizardite plus...section___________-___ Lizardite (deweylite), Delaware County, Pa__-___________-_____________-_---__---__--_-Lizardite |  | | Journal (article/letter/editorial) | | Cairngorm, Inverness-shire, granite, 847 Castle Hill, Kilbernie, Ayrshire, tobermorite, 253 Creetown...Creetown, Kircudbrightshire, granite, 847 Dalmahoy Hill, Edinburgh, chlorophaeite, 2o5 Fitful, Shetland, cornubite...Carnsore Point, Wexford, granite, 847 Cleengort Hill, Donegal, granite, 847 Connemara, Galway, amphibolites...Curraghmore Hill, Tullagher, Kilkenny, granite, 847 Dawros, Connemara, Galway, chromite, chromian ceytonite...Rock Mtn, San@ford, Dublin, granite, 847 Tullow Hill, Carlow, granite, 847 France Margnac, agrinierite |  | | Report (issue) | | typically found in association with sucl1 minerals as corundum, apatite (particularly fluor-apatite), asbestos...considerations. Larsen, for example, from a study of corundum and albitite bodies in such widely separated areas...On the other hand, the vermiculite in tl1e Corundum Hill mine is reliably reported to persist at least...11·25 11·36 11·0 (1) Jefferisite, West Chester, Pennsylvania. G.J. Brush, Amer.J.Sci., 1861, 31. 369...Jefferisite., West Chester, Pennsylvania. • Jefferisite., Delaware Countyt Pennsylvania. 1 ·607 1 ·607 |  | | Journal (article/letter/editorial) | | Rdunion, anal., rhyodacite glass in, I52; with corundum altering to margarite, lO6 Rdunion, anal., glass...idocrase, 894 Andtzhk-Ztmparahk area, Turkey, chromite, Bayerite, conditions for synthesis, electron...altered struvite from Skipton, Victoria, 381 Broken Hill, New South Wales, muscovite, myrmekite, 57o Bronzite...Carnsore Point, Wexford, Ireland, granite, 847 Castle Hill, Kilbirnie, Ayrshire, tobermorite, 253 Central province...the Meldon aplite, I79 Chenevixite, Mexico, 54I Chester, Massachusetts, margarite, 317 Chitaldrug, granite |
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