 | | Journal (article/letter/editorial) |
| DIFFERENTIATION BETWEEN ENDELLITEHALLOYSITE AND KAOLINITE BY TREATMENT WITH POTASSIUM ACETATE AND ETHYLENE...ethylene glycol, whereas the basal spacing of kaolinite, similarly treated, remains at 7 A. The technique...artificially prepared mixtures of halloysite and kaolinite. Similar responses to the treatment by both l...and Andrew, Jackson and Wada (1960) reported that clay minerals of the kaolin group were expanded to approximately...potassium acetate. After the KOAc was washed out, kaolinite returned to its characteristic 7 A spacing, according |
 | | Journal (article/letter/editorial) |
| 1887, when visits were paid to Carclaze and other clay works, and to Roche Rock. '*' The granite, where...known as aplite are sometimes seen in the china-clay pits, but this rock is rare as compared with its...Unfortunately the exposures are now much overgrown and the pit is full of water,but specimens showing large fragments...smaller scale, have been met with in many of the clay pits. The quarries in the neighbourhood of Luxulyan...granite and specimens may be procured from many clay pits. It sometimes appears to be an alteration product |
 | | Journal (article/letter/editorial) |
| Clays and Clay Minerals, Vol. 24, pp. 107 113. Pergamon Press 1976. Printed in Great Britain SCAN ELECTRON...of (1) kaolinite and dickite which crystallized from solution within cavities, (2) kaolinite weathered...silicate material, (3) residual kaolinite from primary silicate rock, (4)kaolinite above and below a basal unconformity...hydrothermally altered kaolinite. The texture of kaolin reflects the environment in which the clay was formed. Euhedral...environment produces large crystal flakes of kaolinite, expanded books, mats of elongates, high porosity |
 | | Report (volume) |
| ............................................... Clay deposits near Kunkletown and Saylorsburg, Monroe......................................... Narvon clay pit, Lancaster County ........................................................................... Clay pit near Dillsburg, York County.................................................................... Clay deposits near Mount Holly Springs, Cumberland County.................................................. Clay deposits in the Gatesburg Formation of Centre, Blair |
 | | Report (volume) |
| Clay Deposits of Spokane County Washington By JOHN W. HOSTERMAN GEOLOGICAL SURVEY BULLETIN 1270...region_______________________________________ Geology of clay-bearing units_______________________________________...minerals________________________________________________ Clay deposits_____________________________________________________...________ Excelsior clay pit and deposit_______________________________ Mica clay pits and deposit___..._______ Freeman clay pit and deposit_______________________________ Valleyford clay deposit_________ |
 | | Journal (article/letter/editorial) |
| Clays and Clay Minerals, Vol. 58, No. 2, 188–204, 2010. FIRING TESTS ON CLAY-RICH RAW MATERIALS FROM...ceramics in studies of provenance. Eleven samples of clay-rich raw materials from the Algarve Basin (southern...representing the main compositional range of the clay deposits from the region. Mineralogical and geochemical...composition of shards may help to determine the type of clay used and the temperatures to which they may have...No. 2, 2010 Thermal transformations in Algarve clay complements archeometric work already developed |
 | | Report (volume) |
| Woodrow, Haywood County___________ Mine of the Hand Clay Co. (Inc.)_____ 27 28 28 30 31 31 IV CONTENTS...Yancey County_____ 36 Job Thomas mine___ _ 36 Pit of the Clay Products Co_ 36 Sprucepine, Mitchell County...Property of the Cumberland Clay Co_ - ___-_____ Property of the Philadelphia Clay Co__________ Property of...Portland Cement Co_____ Henry Clay mine ______________1 _ _Property of the Holly Clay Corporation __... Beavertown...County_____________________ Pit of the Whittaker Clay Co_______________ Pit of the Diller Clay Co___________________ |
 | | Journal (article/letter/editorial) |
| Clays and Clay Minerals, Vol. 24, pp. 114-117. Pergamon Press 1976. Printed in Great Britain SCAN...(SEM) show the textures of ball clay, plastic refractory clay, flint clay, and of kaolins from Cornwall...The texture of ball clay is a swirl and ragged-flake pattern. Plastic refractory clay shows a transition...texture from ball clay to plastic, semi-plastic, to semi-flint, and flint-clay. Flint-clay texture exhibits...interlocked clay grains in which may be interspersed small, tight books and sheaves of kaolinite. The plastic |
 | | Journal (article/letter/editorial) |
| GUIDE TO FIELD TRIP OF FOURTH NATIONAL CLAY CONFERENCE: CLAY MINERALS IN SEDIMENTARY ROCKS 1 By J. C...University Park, Pennsylvania CLAY MINERALS IN SEDIMENTARY ROCKS Clay minerals occur most commonly as...constituents of sedimentary rocks and nearly all the clay mineral species, with the possible exception of...nacrite, have been found in sediments. Different clay minerals occur in different kinds of sediments and...occur in all four kinds. Generally in sandstones the clay minerals form the main constituents of the matrix |
 | | Journal (article/letter/editorial) |
| Associated with EconomicKaolinization,GoonbarrowChina Clay Pit, St. Austell, Cornwall, England:GeologicRelationships...primary igneousrock typesin the Goonbarrowchina clay pit, locatedin the upper Carboniferous(Westphalian)St...hydrothermallymetamorphosed to a quartz-muscovite-kaolinite assemblage (271.74- 1.4m.y.), and varioussize...hydrothermalpro- Goonbarrowin 1855 (Barton,1966). The pit is also cesses has been suggested by someworkers...and a depth of '•180 m was clay pit, nearBugle,'•6 km northof St. Austell(pit reached(Dines,1956).The operations |
 | | Report (volume) |
| Ball Clay and Bentonite Deposits of the Central and Western Gulf of Mexico Coastal Plain, United States...GEOLOGICAL S O R ¥ E Y B 0 L L E T I N 1^ Ball Clay and Bentonite Deposits of the Central and Western...BULLETIN 1558-C Geology and geologic setting of ball clay and bentonite deposits UNITED STATES GOVERNMENT...Data Hosterman, John W. (John Wallace), 1923Ball clay and bentonite deposits of the Central and Western...Bibliography: p. Supt. of Docs, no.: I 19.3:1558C 1. Ball clay Gulf Coast (U.S.) 2. Bentonite Gulf Coast (U.S.) |
 | | Report (issue) |
| geochemistry and surface area of mudrocks from the London Clay Formation of southern England Physical Hazards Programme...4000 3000 illite; 9.99 2000 chlorite; 3.54 kaolinite; 3.58 1000 0 5 10 15 20 25 30 2Theta (°)...the London Clay Formation of southern England S J Kemp and D Wagner mineralogy, London Clay Formation...Formation, clay minerals, pyrite, smectite, engineering properties. Front cover <2 µm X-ray diffraction traces...geochemistry and surface area of mudrocks from the London Clay Formation of southern England. British Geological |
 | | Journal (article/letter/editorial) |
| 1913 in a clay pit east of Columbia, Missouri, but the material was identified as kaolinite at that time...from its mode of occurrence that the supposed kaolinite might be dickite, submitted some of it to Professor...Iowa, area last spring and found an abundance of a clay mineral in geodes and geodial cavities in several...all proved by r-ray examination (by Kerr) to be kaolinite. The writers had hoped to find some of the material...apparently they did not, unless it was mixed with the kaolinite in such small amounts as to be indeterminable |
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| Consultative Committee Mineral Dossier No 26 China Clay by D E Highley, BSc, MIMM, MIGeol Minerals Strategy...No7 Salt No8 Sulphur No 9 Tin No10 Talc No11 Ball Clay No12 Slate No13 Gypsum and Anhydrite No14 Gold ...Rock Bauxite, Alumina and Aluminium Perlite Common Clay and Shale Limestone and Dolomite Fireclay Silver...request. Acknowledgements The help of The China Clay Association; English Clays Lovering Pochin and Co...Bearne and Co. PLC; The Goonvean and Rostowrack China Clay Co. Ltd, and Steetley Minerals Ltd in giving information |
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| 3, pp. 297–305 DOI: 10.2478/v10263-012-0016-9 Clay minerals as palaeoenvironmental indicators in the...tereska_wing@yahoo.co.uk ABSTRACT: Dudek, T. 2012. Clay minerals as palaeoenvironmental indicators in the...diffraction quantitative mineralogical studies of the clay-rich Middle Jurassic sedimentary rocks from Gnaszyn...anhydrite, pyrite, illite, kaolinite, chlorite, and glauconite. The clay assemblage is dominated by illite...for about 20 wt% of the total mineral content. Kaolinite amounts usually <10 wt% and chlorite and glauconite |
 | | Journal (article/letter/editorial) |
| districts of which Morenci is an outstandingexample. The clay minerals occur in the sulphideore and are chara...sericite. The more important clay minerals include hydromuscovite,kaolinite, allophane,halloysite,and beidellite...ore body,this alterationis most pronouncedin the pit area. Following consolidation,the monzonitewas extensivelyfractured...the amount visible in the pit was small. Throughout much of the area of the pit, fine-grain pink orthoclase...considerably alteredto sericite,hydromuscovite, kaolinite,and xoBoutwell, J. M., Economic geology of theBingham |
 | | Report (issue) |
| Consultative Committee Mineral Dossier No 1 1 Ball Clay Compiled by b E Highley, BSc, MIMM, C Eng. Mineral...No8 Sulphur No9 Tin NolO Talc :No 11 Ball Clay Preface The Mineral Resources Consultative Committee...comments and information thanks are due to the.ball clay industry, the British Ceramic Research Association...References 30 Illustrations Fig 1 Location of ball clay deposits in south-west England 4 Fig 2 Geological...of the Bovey Formation and the 'location of ball clay workings 6 Fig3 Geological map of the Petrockstow |
 | | Journal (article/letter/editorial) |
| second and fifth largest in the world. 87% of china clay produced in Devon and Cornwall, and 70% of Czech...companies, Redlandand Goonvean and Rostowrack China Clay (operating in Cornwall) and Watts Blake Bearne and...at Kaznejov and 80 to 110 m at Horni Briza. The clay deposits are selectively dry mined, based on kaolin...and glass fibre and ceramics (37%). The yield of clay from the kaolinitic sands and kaolinitic conglomerates...tiles, refractories and also 36,000 tpa of a filler clay. The deposit is a sequence of Carboniferous (Westphalian) |
 | | Report (volume) |
| Mineralogic Relations and Ceramic Properties of Clay Deposits of Eocene Age in the Jackson Purchase Region...History of clay production______________________________________ General description of developed clay deposits..._____________________________________ Origin of clay deposits_________________________________________...ceramic properties, and potential use of undeveloped clay deposits---------------------------------------...samples and clay pits__________________________________________________ 3. Composition diagram of clay minerals |
 | | Journal (article/letter/editorial) |
| from Wheal Prosper, Goonvean and Rostowrack China Clay Pits, chosen to represent the complete range of... these elements are probably associated with kaolinite. Lip and F are accounted for in mica. A very good...relationship exists between the strength of the clay and the smectite content. Using a procedure for...Hart and D. Smith, Goonvean and Rostowrack China Clay Company, St Stephen, St Austell, Cornwall PL26 7QF...Cornwall, are an important source of kaolin (china clay) for use in porcelain, bone china, earthenware and |
 | | Journal (article/letter/editorial) |
| the altered rocks in Table 3, were checked for kaolinite and smectite by X-ray diffraction. GREISENIZATION...severely altered end-product, as exploited for china-clay, is a white plastic material which contains residual...residual quartz and muscovite in a matrix of kaolinite resulting from the breakdown of feldspars. In the...granite were collected from working and former china clay pits and from surface exposures in areas of kaolinization...working face of an (until recently) operating china clay pit and is compared with fresh granite from Geevor |
 | | Journal (article/letter/editorial) |
| Clays and Clay Minerals, Vol. 57, No. 4, 494–501, 2009. OPTIMIZING THE MECHANICAL STRENGTH OF ADOBE...quartz, feldspar, and the clay minerals chlorite, vermiculite, illite, and kaolinite. Prerequisites for using...grain-size distribution and the absence of expandable clay minerals. To optimize the compressive and bending...Compressive Strength, Industrial Application of Clay, Load Capacity. INTRODUCTION The need for energy-...strength. For this reason, the amount of expandable clay minerals within brick loam should be as small as |
 | | Journal (article/letter/editorial) |
| oersityof Missouri,, Columbio, Mi'ssour'i'. The fire clay deposits of Missouri, including the plastic, flint...strikingly barren of fossils (excepting coal) within the clay itself. Their absenceis not surprising becausethe...remove silica from the kaolinitehalloysite type of clay and leave the alumina-rich diaspore. Obviously this...a cavity by diaspore clay formerly occupied by wood, buried within a diaspore pit was so unusual as to...to be deemed worthy of description. Inquiry of clay miners long experienced in the diaspore region revealed |
 | | Journal (article/letter/editorial) |
| profiles. Underclays are composed principally of kaolinite of a poorly crystallized type, illite, mixed-layer...vermiculite to chlorite. Mixed-layer material is the only clay mineral common to all underclays. Although the mineralogy...contain less kaolinite and mixedlayer clay minerals and more and better-crystallized 14 A clay material than...associated underclays. They contain less kaolinite and more 14 A clay, both of which are usually slightly...crystallized, and also contain less mixed-layer clay. Most underclays from parts of the column in which |
 | | Book |
| • HANDBOOK TO THE COLLECTION OF KAOLIN, CHINA-CLAY • AND • • CHINA-STONE, - • I • IN THE MUSEUM...HANDBOOIC TO THE COI,LECTION · OF ... KAOLIN, CHINA-CLAY AND ' CHINA-STONE, IN THE })IUSEUM OF PRACTICAL...of Cornish · or china-stone and Cornisl1 or china-clay collected -by Sir Henry de la . Beche unde1 this...commenced "~ith special 1"eference to the kaolin, china-clay and china-stone deposits of the British Isles, but...England and with the 1nethods of winning the china-clay and preparing it £01· use. Other occu1·rences both |
