 | | Journal (article/letter/editorial) | | Hercynian granites of Western Europe, in southwest England,in France, Spainand Portugal,in the Vosgesand the... Examplesare in the E-W lodes of Cornwall, at Wheal Trenwith, Wheal Providence,Geevor and elsewhere....mostlyin the aureoles of the granites. Both in Cornwall and the Erzgebirge they trend N-S and postdate...commercial sources of pitchblende,at South Terras in Cornwall and (with silver and cobalt) at Jachymov, Schneeberg...Reference -- Granite Granite Dartmoor, Cornwall Bodmin, Cornwall K/A on biotite Chemical on mona- 305 |  | | Book | | Endsleigh House 50 Daniell Road Truro, Cornwall TR1 2DA England Printed in Great Britain by Short Run...that he knew of no place on earth that surpassed Cornwall in the number and variety of its minerals. Hogg's...is subtitled 'in wich [sic] is shown how much Cornwall contributes to the illustration of the science'...later by Collins' A Handbook to the Mineralogy of Cornwall and Devon' (1871; 1892 with addenda, the latter...mention Purser's 'Minerals and locations in S.W. England' (1974). The work was never published, although |  | | Book | | Collectors Guide to ^MINERALS, ROCKS and GEMSTONES \in Cornwall and Devon |'; '’i '■-■ ,, t Cedric Rogers...Collector’s Guide to MINERALS, ROCKS AND GEMSTONES in Cornwall and Devon Cedric Rogers i D. BRADFORD BARTON...Truro LTD MINERALISED ILPMACOMar AREAS of CORNWALL & DEVON Main. Concentrations of mints. (has... ’’fe, -'A Sr A6Nfl^ fe'Pk :. g,TRURO <4 J -St AUS FELL S’ LAND'S EHdG HOUMTSS. HEL5TOW PENZANCEJH...Cleavage and Fracture 8 8 9 10 11 GEMSTONES OF CORNWALL Quartz Gemstones 12 13 GRANITE AND OTHER ROCKS |  | | Journal (article/letter/editorial) | | 75, 1980, pp. 296-302 CoexistingCoffiniteand Uraninite in Some Sandstone-Host UraniumOresof Wyoming KENNETH... I. GRAUCH Abstract Coexistingcoffiniteand uraninite appear to be very commonin high-grade,sandstonehost...coffinire and uraninite, is commonly present and probably consistsof submicroscopicmixtures of uraninite and coffiniteor...show the presenceof major Ca and Si in both the uraninite and coffinire but no other major metals besidesU...minerals,and the Si is possiblyin the structure of uraninite as well as that of coffinite. Introduction |  | | Book | | pitchblende from the cobalt-silver workings of Jachymov (St. Joachimstal) in the Bohemian Erzgebirge, and utilized...pitchblende is reminiscent of that of boiling pitch. Uraninite • U raninite is the crystalline form of pitchblende...sulphuric or nitric acid. Beautiful cubes of uraninite are found in vughs in the pitchblende deposits... with cracks and fissures radiating from the uraninite. Torbernite Torbernite, also known as copper-11ranite...end-members are pure thorianite (ThO 2 ) and pure uraninite (UO 2 ). Various amounts of other m~tals, principally |  | | Book | | 4JF England Phone: 44 (0} 20 8392-8585; Fax: 44 (0) 20 8392-9876 E-mail: info@bushwoodbooks.co. uk Website:............................................. 26 England .................................................traditional industries including ceramics, catalysis, and st eelmaking. Colored glass dating from around 79 AD...Germany; Peach Bottom and Fort St. Vrain in the US; Dragon project at Winfrith, UK; and Kimini near Kalpakkam...of the uranium will ultimately crystallize as uraninite, UO 2 , although in some hydrothermal vein deposits |  | | Journal (article/letter/editorial) | | quartz associated with the Hcrcynian granites of SW England using ICP. Material, ejected from the inclusionsduring...average U contents of fluid inclusions from the SW England samples, based on the assumption that U in the...at the Applied Research Laboratories Ltd., Luton, UK. A significant U response was recorded on the instrument...S n - W - C u mineralized quartz veins from SW England were studied (Table I). For ICP analysis, pure...has been observed only in two samples from SW England (Goonbarrow, Hemerdon). Insufficient data are available |  | | Book | | undifferentiated Head Raised Beach Solid formations Pliocene St Erth Beds Devonian M ylor Slates Gramscatho Beds...district featured on Maton 's geological map of Cornwall in 1797 and accounts, both of the minerals and...phonolite of Wolf Rock. Small outcrops of Pliocene St Erth Beds are described and there is a full account...Memoir for 1: 50 000 geological sheets 351 and 358 (England and Wales) LONDON: HER MAJESTY'S STATIONERY OFFICE...British Geological Survey, Sheets 351 and 358 (England and Wales). Authors A J J Goode, BSc and R T Taylor |  | | Journal (article/letter/editorial) | | Rutherford had shown in this way that a specimen of uraninite was 900 m.y. old; and on this basis Barrell in...of potassium or rubidium minerals from dated uraninite pegmatites). Unfortunately, far too many workers...uranium mine in Idaho the Middle Beltian is cut by uraninite veins which have a probable (Pbzo'/PbZo")age of...discovery in 1945 of important concentrations of uraninite associated sympathetically with the Witwatersrand...origin; and when age determinations showed the uraninite to be 2,050 m y . old, or more than twice the |  | | Journal (issue) | | supposed Ordovician :F·ossils from South-\,Vest Cornwall, by C. J. Stubblefield, Ph.D., A.R.C.S. · VI.-...E . T. H orne V.--011 the Impersistence of Uraninite as a Detrital 1Hneral, by C. F. Davidson and l\'1...Canada 56, 57 IV III.- Photo1nicrographs <;>f uraninite fro1n the vVitwatersrand 72 V PLATE I V.--Sketch...of original radiogenic lead postulated in the uraninite . . • . • . . . . . 68 FIG, 2.-Graph showing the...be postulated for the two generations of the uraninite to give the whole the observed apparent ages. |  | | Book | | PO Box 315. Harpenden. Hertfordshire AL5 2ZD. England Telephone: +44 (0)1582 762413 Fax: +44 (0)870 055...the production of e0pper. the mining areas of Cornwall and Devon became important producers of b th tin... I made it a stipulation that e:ich en~ in rn:, ·st ,, ,u.d be fully referenced. After eight years the...Oxford University Museum of Natural History; Royal Cornwall Museum, Truro; Sedgwick Museum, University of...1\llaga::i11e, on minerals from localities in Cornwall. Devon. Cumbria and Yorkshire. He was renowned |  | | Book | | There have been !)lines in Cornwall for some 3500 years where the intrusion of huge masses of granitic...significant minerals to come out of southwest England. The accompanying captions describe the crystallographic...t). ~ e • ~t~' l lr\ V: 1 'I Minerals of Cornwall and Devon Joseon1ne Community Llbral1es Grants...Embrey. P. G. Minerals of Cornwall and Devon. 1. Mines and mineral resources;--England --Devon 2. Mines and...and n1ineral resources --England--1Cornwall J. Title IL Symes. R. F. 549.9423'5 QE262.D45 ISBN 0-56 5-009 |  | | Report (edition) | | British Regional Geology I * South-West England r * FOURTH EDITION e ■ - O ” ..y 1835 Geological...Mr. G. Bisson (District Geologist, South-West England), as well as Professor W. R. Dearman and the con...volume [1966] of the Royal Geo logical Society of Cornwall. The succeeding years have seen notable advances...in our knowledge of the geology of south-west England. Most of the great expanse of Carboniferous rocks...Isotopic age-determinations of rocks of south-west England ...... Facing 112 1. . . . List of Geological |  | | Book | | .......................................... 45 England ........ ........ ...............................which are novv availab le in several online arch ives), and these are incl uded in the bib I iography...Gerrnany; Peach Bot101n and Fort St. Vrain in the US; Dragon project at Winfrith, UK: and Kimini near Kalpakkam...measure the activity ofa sample o.fcfendrific uraninite in pegmatile. 14 The abil ity of radioactive... INTRODUCTION Figure 7. A slab of black dendritic uraninite altering to orange gummite in pegmatite,from the | | | Report (edition) | | G .. Bisson (District Geologist, South--West England), as well as Professor W. R. Dearman and the con...volume [1966] of the Royal Geo logical Society of Cornwall. The succeedi11g years have seen notable advances...in our knowledge of the geology of south-west England. Most of the great expanse of Carbonif�rous rocks...age-determinations of rocks of south-west . . . . . . . Facing England 1 112 List of Geological Survey Maps and Memoirs...positions prior to continental drift. South-west England is shown in . . . . . black . . . . . Generalized |  | | Book | | ... ... .... . .... ..... . . ...... . Zoned Uraninite Pegmatites ..................................... . Zr-Fe 3.......... . 5. Anions Examples Uraninite Pyrochlorc-microlite, apatite, zirkelite, crandalJite...cro]j te Uraninite, zircon Uraninite Uraninite, fergusonite, samarskite, xenotime Uraninite Urau.inite...always well crystallized. Metamict pitchblende ( uraninite) has been reported ( Conybeare and Ferguson, 1950)...conspicuous in pegmatites around such species as uraninite, euxenite, samarskite, fergusonite, betafite, |  | | Book | | the original manuscript, particularly T. K. Ball (UK), I. Benkovics (Hungary), F. Bianconi (Switzerland)... . . . . . . . . . . . . . . . . 3.1.1 Jáchymov (St. Joachimsthal) District, Northwest Bohemia . . ....Western Canton of Valais .. . . . . . . . . 18.3 St. Niklaus-Embd-Zeneggen, Eastern Canton of Valais.... . . 18.6 Glarner and St. Galler Verrucano Region, Cantons of Glarus and St. Gallen . . . . . . . ... . . . . . . . . . . . . . . . . . . . . 20.1 Cornwall .. . . . . . . . . . . . . . . . . . . . . . |  | | Journal (issue) | | Research into the geology and geomorphology of S. W. England Volume 5 Part 3 1982 Edited by G.M Power The...into the geology and geomorphology of South West England and the surrounding marine areas; to hold Annual...Annual Conferences at various places in South West England where those engaged in this research can meet formally...Dr R.T. Taylor, Institute of Geological Sciences, St Just, 30 Pennsylvania Road, Exeter EX4 6BX Devon...Launceston, on Brent Tor and in the stream section near Wheal Betsy and had explained to it the newly-recognized |  | | Book | | Rd., Toronto LONDON Macmillan & Company, Ltd., St. Martin's Street, London, W.C. COPYRIGHT, 1954...other than the United States Belgium, Canada, England, France, Holland, Norway, Sweden, and the U.S.S...constructing uranium reacstantial atomic research England and the U.S.S.R. have successfully developed atomic...the necessity for secrecy in the this States, England, and Canada to develop an atomic bomb, a realistic...from traces up to 5 to 10 per cent, and also in uraninite. source of thorium. ticularly in Descriptions |  | | Book (edition) | | of Mineralogy Natural History Museum London, i UK CHAPMAN & HALL London - Glasgow - New York : Tokyo...Chapman & Hall, 2-6 Boundary Row, London SE1 8HN, UK Blackie Academic & Professional, Wester Cleddens...Cleddens Road, Bishop- briggs, Glasgow G64 2NZ, UK Chapman & Hall Inc., 29 West 35th Street, New York NY10001...study, or criticism or review, as permitted under the UK Copyright Designs and Patents Act, 1988, this publication...licences issued by the Copyright Licensing Agency in the UK, or in accordance with the terms of licences issued | | | Book (edition) | | Department of Mineralogy Natural History Museum London, UK SPRINGER-SCIENCE+BUSINESS MEDIA, B.V. First edition...licences issued by the Copyright Licensing Agency in the UK, or in accordance with the terms of licences issued...appropriate Reproduction Rights Organization outside the UK. Enquiries concerning reproduction outside the terms...from Switzerland, Stefan Graeser (Basel); from the UK, David Vaughan (Manchester); and from the USA, Pete...14 14 14 14 Hausmannite Chromite Manganosite Uraninite Chromite 14 14-15 14-17 14-17 14-21 15 14-15 |
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Wheal Trenwith, St Ives, Cornwall, England, UK