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| GEOLOGICAL SURVEY CHARLES D. WALCOTT, DIRECTOR SLATE DEPOSITS'AND SLATE INDUSTRY OF THE UNITED STATES T. NELSON... PART I. ORIGIN, COMPOSITION, AND STRUCTURE OF SLATE .................... Definition and classification.................................... Chemistry of slate................................... ...............Economic geology of slate............................................. Difficulties in slate quarrying.......and compass in prospecting for slate........... Methods of testing slate.............................. |
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| SURVEY GEORGE OTIS SMITH, DIRECTOR BULLETIN 586 SLATE IN THE UNITED STATES BY T. NELSON DALE AND OTHERS...texture, and structure of slate.................. Definition and classification of slate...................... Origin of slate....................................................... Minerals of slate and their arrangement............ 24 Chemical analyses of spots in red slate.......................... 25 Discussion of the spots................................. 27 Structure of slate................................................ |
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| moderately well-cultivated district. To the west South Barrule and the Barrulo Slate Quarries rise considerably...These granite masses are intrusive into the Manx Slate Series, which have been in places considerably altered...Map, "slate, grit, and granite quarry") a good junction is seen. Between the granite and the slate a thick...These apophyses can be easily traced round the slate quarry, and at J is the slickensided junction with...section of the junction of the granite with the slate has been exposed by quarrying in the Eairy mass |
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| hearing on this question. A preliminary visit to the district during the past summer served to dispel much of...fuller description than appears in his paper. The district is contained in Sheet 210 (New Series) 1 in. Ordnance...and Carmarthenshire—notably from the Abercastle district,1 Treffgarne,2 Skomer and the mainland adjacent...and very illpreserved. The whole district abounds in slate quarries (many— like the large ones at Rosebush—disused)...a revival in this local industry, and several quarries are at work near Maenclochog and Llandilo. In |
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| FEBRUARY , 1897 . CONTENTS . Pyrite CONCRETIONS AND LIMONITE Geodes , 177 ANCIENT MINES , 178 " CYCLE GLEANINGS...February, 1897. No. 12. PYRITE CONCRETIONS AND LIMONITE CEODES. Kutgeks College Museum, Jan. 2nd, 1897...have before me a lot of pyrite concretions and limonite geodes. One of them is a glistening " Sulphur...shell composed of turgite on the inner side, with limonite on the outer surface. This shell is usually more...shell of this Turgite geode afterwards changes to limonite on the outer surface, by the addition of about |
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| Consultative Committee Mineral Dossier No. 12 Slate Compiled by RN Crockett, BSc, PhD, MIMM, FGS Mineral...No 9 Tin No 10 Talc No 11 Ball Clay No 12 Slate Preface The Mineral Resources Consultative Committee...Broughton Moor Green Slate Quarries Ltd; Buttermere and Westmorland Green Slate Co Ltd; Kirkstone Green...Green Slate Quarries Ltd; Lakeland Green Slate and Stone Co Ltd; Maen Offeren Slate Quarry Co Ltd; Mill...(Tavistock) Ltd; Old Delabole Slate Co Ltd; Penrhyn Quarries Ltd; Pen-yr-Orsedd Slate Quarry Co Ltd; Solite Ltd; |
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| .............................................. Slate, Talc and Soapstone ..............................mineral paints. c. This comparison does not apply to slate, talc and soapstone. . (7) NEW JERSEY GEOLOGICAL...were magaletite and limonite, or brown hematite. Only a small percentage o£ limonite was produced, the...ore, and that of the Shoemaker mine, which is limonite. The value of the ore at the mines was $i,582...Middlesex County, in the Woodbridge-South Amboy district. The Iargest percentage of the more valuable clays |
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| .............................................. Slate, Talc and Soapstone ..............................mineral paints. c. This comparison does not apply to slate, talc and soapstone. . (7) NEW JERSEY GEOLOGICAL...were magaletite and limonite, or brown hematite. Only a small percentage o£ limonite was produced, the...ore, and that of the Shoemaker mine, which is limonite. The value of the ore at the mines was $i,582...Middlesex County, in the Woodbridge-South Amboy district. The Iargest percentage of the more valuable clays |
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| Camelford to Delabole and visited the famous Slate Quarries under the guidance of the managing director...the machinery used in splitting and trimming the slate for the market. The quarry itself was then entered...were collected. During the winter a huge mass of slate and overburden had collapsed and the village and...valuable source of good material. The Delabole Slate forms the lowest subdivision of the Upper Devonian...shore was widened many years ago to carry slate from the quarries to boats drawn up against the cliffs, and |
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| Valley in the Caldbeck Fells of the northern Lake District and include workings in Silver Gill, on Balliway...worked again. Finally, in 1913 Carlisle Urban District Council bought the mine to pump water from the...spoil heaps into the late 1990s when the Lake District National Park Authority (LDNPA) seriously restricted...entrance to the level is behind the Carlisle Urban District Council building in the right centre of the photograph...(1987) in his ‘Glossary of the minerals of the Lake District and adjoining areas’. In this review, precedence |
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| Cahaba field appear to be less interbedded with slate than those of the Warrior; and theCahaba eontains...gneisses and mica schists of metamorphic region. Fine quarries at Tallahassee falls on Tallapoosa river in sili...Giaphite— Halloysite . Hematite . Kaolinite . Limonite . Common name. Remarks. Stewart's mines and...Tennessee valley in north ern Alabama carries limonite. Largest bank in Franklin county from Cedar creek...Iu the Lower Cretaceous (Tuscaloosa) formation, limonite is of frequent occurrence at places, in large |
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| products mined "as is" for their final usage include slate for blackboards, roofing, and flagstone. Slates...which can be so abundantly present as to ruin the slate for commercial purposes; microscopic rutile is also...associated mineral. Quartz and calcite veins cutting the slate are the only hope for collector-quality specimen...listed many minerals found in Ver mont slate. Figure 2. Slate quarry, Poultney; photo by Roger Bacon...jimthompsonite* kaolinite kyanite lazulite leucoxene limonite lizardite magnesiohornblende magnetite manganite |
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| substance is altogether unknown, of minerals in the district under consideration, a of time deal may often...therefore give a list of those which occur in the district under consideration, with short remarks upon...O 3 = UO U 2 O 3 Hydrous. Manganite Gpethite Limonite .. .. Stibiconite Opal Asbolane Wad Zippseite...Magnetite Chalcopyrite Hematite f ahlerz Goethite Limonite Chalybite Vivianite Pyrrhotite Pyrites Marcasite...Braunite Psilomelane Ilmenite Hematite Wad Limonite Goethite Fam. Asbolane Bismite Tin Ore. 2 |
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| tandfonline.com/loi/taje20 Physical weathering of slate gravestones in a Mediterranean climate J. H. Cann...article: J. H. Cann (2012): Physical weathering of slate gravestones in a Mediterranean climate, Australian...(2012) 59, (1021–1032) Physical weathering of slate gravestones in a Mediterranean climate J. H. CANN*...The physical weathering of vertically emplaced slate gravestones in two metropolitan cemeteries in Adelaide...further promoted opening of cracks parallel to the slate cleavage. Salt crystallisation has substantially |
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| State Geologist BULLETIN NO. 34 REPORT ON THE SLATE DEPOSITS OF GEORGIA BY H. K. SHEARER Assistant...Ga. BYRD PRINTING COMPANY, State Printers 1918 SLATE DEPOSITS OF GEOBGIA FRONTISPIECE-PLATE I OLD DEVER...ROCKMART, POLK COUNTY, WHILE OPERATED BY THE GEORGIA SLATE COMPANY, BETWEEN 1893 AND 1900. LETTER OF TRANSMITTAL... K. Shearer;-Assistant State Geologist, on the Slate Deposits of Georgia, to · be published as Bulletin...ACKNOWLEDGMENTS The prep•aration of a report on the slate deposits of Georgia was begun in 1912 by Dr. T. |
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| Beaches Cliffs and Caves. River Beds etc. Mine Dumps Quarries St. Just - Botallack - Pendeen Camborne - Redruth...colourless. Beryl, rarely, in pegmatite, e.g. granite quarries near Falmouth, St. Michael’s Mount. Garnet, not...greyish, often stained brown with iron oxide (limonite). It is encountered nearly every where as pebbles...may be lucky. Land’s End and in the china-clay district are the most likely hunting grounds. Citrine...quartz-veined slate with onyx. These are recognisable by the fact that the softer slate wears away leaving |
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| carbonate (sidoxide erite) to the hydrous iron (limonite). 3. By impression : as in deposition in a cavity...manganese; others, of a brownish color, are made of limonite; others, of a reddish black or black color, of...their general shape and origin. Chalcedony and limonite are often stalactitic. Interiorly the structure...in Magnolia District at the Keystone, Dun River, and other mines; in the Ballerat District at Smuggler...Smuggler Mine; in Central District at the John Jay Mine, where masses of 25 pounds weight are reported to have |
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| Messrs. H. Sheafer, L. Martin, W. and Bedford Quarries Co. Cornell University, Ithaca, N.Y., June, ...Production of building United States, 88 Uses of slate, 89 stones, 89; References on building stones, 90;... References on magnesite, 184 ; on mica, 186 Slate, 187 ; Mineral pigments, 186 Gypsum, 187 ; ... hematite occurrences, 268 limonites, 270 ; Limonite, 269 ; Bog ores, 269 ; Other occurrences,...Bisbee or Warren district, 290 ; Jerome district, 292 Clifton district, 293 Globe district, 294 Appalachian |
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| answer the purpose extremely well, and are sold in Germany at a — — — — very cheap rate. Besides occurring...Localities. ^English. Sr.owdou ; Avith Quartz. in slate.— Welsh. —Scotch. Island of Arran, Buteshire. Irish...Rhenish Bavaria, and at Galgernberg in the north of Germany, whence they are exported to all parts of the world...the agate nodules. The agates now worked in that district, and sold as native productions, are chiefly obtained...water. so ren-.ote, agate articles are sold in Germany at prices astonishingly low. One other fact, in |
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| gypsum, halite, calcite. Found in: Lower Saxony/Germany; Czechoslovakia; Yugoslavia; Surrey/England; 6*...impregnations or in the poor space of sandstone and slate. Found in: Galizia/Poland, Romania; Trinidad; Venezuela... Mohs' hardness ^ Mellite honey stone 0 Thuringia 1:2 AI2[CI20I2] • 18 H20 Streak white. Mohs’...Accompanied by: ordinary coal. Found in: Thuringia, Saxony/Germany; Czechoslovakia; Seine/France, Tula/ USSR...in: Lower Saxony, Baden, eastern Harz mountains/Germany; Galicia/Poland; Urals/USSR; Alsace-Lorraine/France; |
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| titan te i8 r.lative~1 large SJl.sunts. Grgit. Quarries (76(42 15'58",73000'43tt)~ 2 16'11",73 01'U tt...uaknown)16l,p.84)--Old Gross Quarry. Dolomite Harb e quarries (with variable amounts of calCite, phlogopite...Ore (Limonite Pit 9 42 40'40",73 05'Oltt)365,p.g3) --Quartzi5e with l~onite. Iron Ore Limonite Pro. act...--Garnet Hill)topographic map). D,:I Shaker Iron Ore Limonite Mine (52(420 25'55",73°19'19") mi e south of this...cabochons· at ti••• exhibiting a eat's ey. effect. Limonite--compact, botrY8~al and m&millary masae! sui table |
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| . 3 3. Slate block, Martinsburg Formation ........ 12 If. Photomicrograph of slate, Pen Argyl...West Bangor slate quarries .......... 63. Geologic map and section of Northampton slate quarry 6k....Peerless and Strunk slate quarries 168 65. Nearly recumbent syncline in Strunk slate quarry . 169 66...structural position of New Peerless and Strunk slate quarries .... 170 Minor cleavage arch and fault about...about 300 feet south of New Peerless slate quarry ......... 172 Geologic map of the Shitner, Consolidated |
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| _-_----_-------------___--__-.___-_. 11 Flagging (except slate)--__-__--___-_------__-_.-...._._ Paving blocks...slate_______----_------__--_-----_-_____._-__ Mill-stock slate.____-_-_-_------__-_-_-__-__._-_---__ Flagging ...Dimension stone (except slate)______________________________ Dimension slate--______-_-------------------__-__-_---_--_...-----------------.. Schedule for examination of deposits and quarries---____-.________ Location of deposit or quarry...Continued Schedule for examinations of deposits and quarries Continued Geologic features Continued Veins and |
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| Torver and on this side it adjoins the Coniston district (Mitchell 1940). To the south-east the margin...in this account. Certain glaaal features of the district were noted by Grace and Smith (1922), but since...the River Lickie, the Dunnerdale Tuffs from the district itself and the Ulpha Andesites from the village...huge slabs bounded by cleavage and jointing. Old slate-trials abound but at no place do the rocks seem...a t of 437 G. n. MITCHBLL Stainton Ground Quarries is a magnificent basal flow-breccia. On The Knott |
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| gypsum, halite, calcite. Found in : Lower Saxony/Germany; Czechoslovakia; Yugoslavia; Surrey/England; Colorado/USA;...impregnations or in the poor space of sandstone and slate. Found in: Galizia/Poland, Romania; Trinidad; Venezuela...Venezuela. Ozokerite Mellite honey stone Q) Thuringia 1:2 Al2[C12012] • 18 H20 Streak white. Mohs'...Accompanied by: ordinary coal. Found in: Thuringia, Saxony/Germany; Czechoslovakia; Seine/France, Tula/ USSR...: Lower Saxony, Baden, eastern Harz mountains/Germany; Galicia/Poland; Urals/USSR; Alsace-Lorraine/France; |
