 | | Journal (article/letter/editorial) | | note on the occurrence of columbite in the Meldon aplite, Devonshire. By OLEG YON K~ORRING, M.Sc. Department...South Devon in April 1951, material was collected from the Meldon aplite quarry near Okehampton, to the...the north-west of the Dartmoor granite, which on examination has proved to contain the mineral columbite...minerals have previously been recorded from the Meldon aplite quarryfl 2 They are partly found as accessory...accessory constituents in the main fine-grained aplite rock consisting of orthoclase, albite, and quartz, or |  | | Journal (article/letter/editorial) | | 1985, VOL. 49, PP. 758 9 Petalite and spodumene in the Meldon Aplite, Devon ASPECTS of the mineralogy...mineralogy of the Meldon aplite fiave been reported in detail in the series of studies listed by Chaudhry and...investigations deal specifically with petalite and spodumene. Petalite here was first described by McLintock...coarser portions of the aplite and more commonly in pegmatite veins in the aplite. Similarly, Edmonds et...et al. (1968) described petalite in some of the sporadic coarser pegmatitic veins and forming disseminations |  | | Journal (article/letter/editorial) | | niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire OLEG VON KNORRING AND ERIC CONDLIFFE...A number of rare-element minerals from the Meldon aplite are described, e.g. native arsenic and antimony...columbite-tantalite series. THE Meldon aplite, near Okehampton, Devon (grid ref. SX 573 927), is a highly...north-west of the main Dartmoor granite (Worth, 1920). This lithium- and fluorine-rich aplite, together...1973, 1976) have given admirable accounts of the Meldon axinite, topaz, Li-A1 micas and lithian tourmaline |  | | Journal (article/letter/editorial) | | AND DEVON: C.J. MOON Moon, C.J. 2018. Geochemistry of Caesium and Fluoride in Cornwall and Devon: Evidence...Evidence from TellusSW. Geoscience in South-West England, 14, 150–160. The TellusSW geochemical survey...soils and water as well as fluoride in waters. Devon and Cornwall are one of the most enriched areas...reflects Cs concentration in fine-grained granite of west Dartmoor, late stage Li-F rich granites in St Austell...mineralisation as well as forming a broad high in mid-Devon, spatially related to the occurrence of lamprophyres |  | Edmons, E. A., Wright, J. E., Beer, K. E., Hawkes, J. R., Williams, M., Freshney, E. C., Fenning, P. J. (1968) Geology of the Country around Okehampton (Explanation of One-inch Geological Sheet 324, New Series) Memoirs of the Geological Survey. Institute of Geological Sciences | Report (issue) | | SURVEY OF GREAT BRITAIN ENGLAND AND WALES Geology of the Country around OKEHAMPTON ( Explanation of One-inch...Beche. His 'Report on the Geology of Cornwall, Devon, and West Somerset' (1839) was the first memoir of the...other early Geological Survey maps of south-west England, are undated, but it is believed that they were...(1956), 'The Metalliferous Mining Region of South-West England'. The district formed part of the area in which...geophysical methods. In 1962 the newly formed South-West England field unit, successively under Dr. F. B. A. |  | | Journal (article/letter/editorial) | | azurite, olivenite, 428; coronadite, 343 Embleton quarry, Cockermouth: alunite, dickite, thaumasite, zunyite...pharmacosiderite, plumbojarosite, seorodite, 430 Devon Bedford United mines, Tavistock: eornubite, 2 Ford...scheelite, 921 Meldon aplite quarry, Okehampton: bavenite, 577 Meldon limestone quarry, Okehampton: scheelite...Sticklepath, Okehampton: scheelite, lxxviii, 921 Red-a-yen Brook mine, Meldon, Okehampton: helvine, 1511ingite...nah' Achlaise, Ledmore: cromaltite, 767 Lettermore quarry, Loch Loyal: nordmarkite, 389 Loch Bad ham Ban |  | | Catalog/List | | FLUORESCENT ½ x ½ ins rock Fluorescent green Al SiO Devon England Large brown well formed dodecahedral Madagascar...hard white sphere shaped nodule. Newhaven Sussex, England lxlins S0p ALUMINITE Al SO/4 ALUMINOTSCHERMAKITE...- - - AMAZONITE Pure green cleavage Landsverlc quarry, Evje, Norway lxl S0p ALAMOSITE fcLp 10 g:...PbAgSbS lx2 S0p 2x2 £1 2x3 £I .SO Staffordshire England Rich white to faintly blue masses ANHYDRITE CaSO...with Chrysotile, pale grey-green County Bridge Quarry,Lizard ,Cornwall MgFeSiO massive. Minas Gerias |  | | Catalog/List | | Spinel crystals from madgascar.Mottramite from England .Cut and polished Labradorite.Tacharanite and Tobermorite...ingots on a ship wreck in 1885 St Ives. Cornwall. England Rich fine grained black crystalline mass Mount...501 A x A ins rock Fluorescent green Al SiO Devon England FLUORESCENT Large brown well formed dodecahedral..._______ Ba Ca 00/3__________ Newhaven Sussex, England lxlins50p 1x2 £1 Pure hard white sphere shaped...Arizona Pure green cleavage AMAZONITE Landsverk quarry, Evje, Norway Ixl 50p lx2£l 11 felspar group____________ |  | | Catalog/List | | CO/3 OH blue micro crystals on rock. (Greystones Quarry,Lezant,Cornwall) £2.00 lx H £3.50 2 076 CALEDONITE...Quartz with micro spots of Native Copper. (Kingston Quarry,Cornwall) 1x1 £2 553 TETRAHEDERITE (Cu Fe) Sb S...cleavages with cerussite and or Pyrolusite (Merehead Quarry, Mendips,Somerset) H x B £2 269 MENDIPITE Pb/3...CORKITE Pb Fe PO/4 SO/4 This is a rare mineral for England, deep yellow radiations in goethite (Iron Crag...metallic fibrous on' 2cm white dolomite. ' (Lengenbach Quarry,Binn Valley Switzerland) £4.50 163 GALENA Lead |  | | Catalog/List | | C267 BUSTAMITE excellent rich brown near Okehampton Devon) This is lxl 6Op lx2 fl.2O C268 CHALCOSTIBITE...(Ramsley Mine lxl fl.5O lx2 f3 of glassy micros Devon) 2x2 f6 C27O CHALCOPYRITE good crystals Also Quartz...mineral has only been found in The Mendips. (Merehead Quarry Mendips Somerset) f3.50 C273 COLORADOITE Mine...metallic Colorado U.S.A) lx single each 2 9 (Meldon B.R.Quarry some years ago. 2x4 f5 on matrix. ...areas in matrix XRD) A W matrix (Bessie Tyube Quarry on Basalt.(Island "B" - C278 GOETHITE really |  | | Journal (issue) | | Some aspects of Engineering Geology in South West England Chairman's Introduction ... ... ... 356...Engineering geology in reservoir construction in South West England. By J. L. Knill. ... ... ... 359 The influence...weathering on the layout of quarries in South West England. By W. R. Dearman and P. G. Fookes. ... ...... 372 Some examples of cliff failure in S.W. England. By H. M. de Freitas. ... ... ... ... 388 Geological...problems in the china clay industry of South West England. By M. J. Ripley. ... ... 405 The geological |  | | Journal (article/letter/editorial) | | 1985, VOL. 49, PP. 758 9 Petalite and spodumene in the Meldon Aplite, Devon ASPECTS of the mineralogy...mineralogy of the Meldon aplite fiave been reported in detail in the series of studies listed by Chaudhry and...investigations deal specifically with petalite and spodumene. Petalite here was first described by McLintock...coarser portions of the aplite and more commonly in pegmatite veins in the aplite. Similarly, Edmonds et...et al. (1968) described petalite in some of the sporadic coarser pegmatitic veins and forming disseminations |  | | Journal (article/letter/editorial) | | 38, PP. I79-85 Feldspars from the Meldon aplite, Devonshire, England M. NAWAZ CHAUDHRY Department of Geology...Geology, University of the Panjab, Lahore, West Pakistan SUMMARY. Chemical analyses of nine K-feldspars...diagrammatically. THE Meldon aplite, near Okehampton, Devonshire, is a soda-lithia aplite dyke about 2o-5 m...m in thickness, occurring I km north-west of the main Dartmoor granite. Albite, quartz, mica, and K-feldspar...fluorite, apatite, and petalite are the accessory minerals of the aplite. The aplite is divided into three |  | | Catalog/List | | the speci es. Locality. including name of mine or quarry, nearest town and county, and six figure National...Loanhead quarry TallskerBay Whyte'a Cleuch Loanhead quarry Port Glasgow Loanheadquarry Loanhelld quarry Loanhead...Loanhead quarry Benalltmlne BMS NATIONAL REFERENCE COUECTION Ecton.Staffs. Ecton.Staffs. Scordale,Cumbria...Beach Clevedon Beach Clevedon Beach Clevedon Beach Meldon apllte q. Fallowfield mine East Gunnislake Struan...Avon Bristol.Avon Bristol.Avon Bristol.Avon Okehampton,Devon Hexham,Northumbr. Cornwall Cutting on A863 |  | | Journal (article/letter/editorial) | | composition, 387; smectite/illite conversion, 393; S W England, in Variscan complex, 3 6 5 ; Spain, transition...ZUSSMAN,J., nephrite jade, 31 DRYSDALE,D. J., petalite and spodumene, 758 DUBEAU,M. L., and EDGAR,A....G., 583 EMBREY,P. G., obituary of M. H. Hey, 1 ENGLAND,southern, Jurassic and Cretaceous sediments, 255;...uranium reprocessing, 177; DEVON,petalite and spodumene in Meldon aplite, 758 Epidote, Mexico, 441 Esperite...giant dyke complex, 623 Greenschist facies, S W England, in Variscan complex, 365 Greywackes, Morocco, |  | | Catalog/List | | hard white sphere shaped nodule. Newhaven Sussex, England 12 ALUJ\JINITE lxlins50p lx2£I 2x2£2.S0 Al SO/4...--- · - · · ··· _ 2x3 £I .SO 2x2£1 Staffordshire England lx2 S0p Rich white to faintly blue masses 23 Al'\HYDRITE... _ . Pure black mica plate new Analysis , Saga Quarry. Tvedalcn near Ix I £3 I x2 £6 2x2 £ 12 7 AN!lilTE...AXINJTE Very rich light brown massive with some Meldon Aplite Quany, lx240p 2x280 2x3 £1.50 3x4 £3 Ca Fe Al...rich white masses intergrown with Weymouth,Dorset,England JxJ 60p lx2 2x2 2x3 £4 46 BASALUMINITE AISO/4 OH |  | | Journal (article/letter/editorial) | | described vanadiferous clays and marls from South Devon, and McClintock comments on the possible relationship...xenoliths of phosphatic shales (1923, 148) in the Meldon aplite. More than twenty years ago Hillebrand (1910...the genetic problem raised by the " initial West of England " granite-magma is linked with the spilitic...more varieties of garnet may occur in a single quarry or in a single hand-sp?cimen of the granite. For...Vanadiferous Nodules in the Permian beds of South Devon," Min. Mag., xxii, 609-613. CLARKE, F. W., 1916 |  | | Catalog/List | | RICHARD ’ BYWAYS, , COBHAM ENGLAND MINERALS T AY L E R C L 0 00 E 2 0 B U R S T E A D P h one SURREY...OH good blue micro crystals on rock (Greystones Quarry,Lezant,Cornwall) 14 X 14 £2.00 lx 14 £3.50 2 ...Quartz with micro spots of Native Copper. (Kingston Quarry,Cornwall) 1x1 £2 553 TETRAHEDERITE (Cu Fe) Sb S...cleavages with cerussite and or Pyrolusite (Merehead Quarry, Mendips,Somerset) S x « £2 219 MARICOPAITE Pb...Omphacite.An attractive Eclogite rock from (Nordfjord,.West Norway) • 1x2 £1.30 2x2 £2.70 • 2x4 £6 112 CORUNDUM |  | | Journal (article/letter/editorial) | | ON THE OCCURRENCE OF PETALITE DEVONSHIRE. OKEHAMPTON, APATITE IN THE MELDON APLITE, W. F. P. MclrNrocr...140-150 (1923). Petalite has not previously been found in Britain but in the Meldon aplite it is quite common...perpendicular thereto. The apatite also found in the aplite is no doubt of pneumatolytic ongrn and showed eight |  | | Journal (article/letter/editorial) | | 7 0 , VOL. 3 7 , NO. 2 9 0 Topaz from the Meldon aplite, Devonshire M. NAWAZ CHAUDHRY Department of...of Geology, University of the Panjab, Lahore, West Pakistan and R. A. HOWIE Department of Geology, King's... THE Meldon aplite, near Okehampton, Devonshire, England, is a sodium- and lithium-rich aplite dyke about...minerals, the aplite also contains accessory topaz, elbaite, apatite, and petalite. The main aplite dyke is...the samples MOt and M74 were separated from the aplite itself. An analysis (BB) is also included in table |  | | Journal (article/letter/editorial) | | ON THE OCCURRENCE OF PETALITE DEVONSHIRE. OKEHAMPTON, APATITE IN THE MELDON APLITE, W. F. P. MclrNrocr...140-150 (1923). Petalite has not previously been found in Britain but in the Meldon aplite it is quite common...perpendicular thereto. The apatite also found in the aplite is no doubt of pneumatolytic ongrn and showed eight |  | | Report (issue) | | väyrynenite, lithiophilite, elbaite, pollucite, petalite, lepidolite, albite, orthoclase, quartz. Distribution:...Sugarloaf Mountain, near Stoneham, at the Dunton quarry and the Bell Pit, Newry, Oxford Co., and other...on Rånö Island, Sweden. In England, in the Meldon aplite, Okehampton, Devonshire. Large crystals from |  | | Catalog/List | | EOCKS AHD MINERALS Ho U available. NEW STOCK Devon and Cornwall pages 8 S 3 : ALLOPHANE, ARTHURITE...Cu Al AsO SO/4 small green plates in and on rock (West Caradon Mine,Cornwall) » x H £4 510 CHALCOCITE copper...Quartz with micro spots of Native Copper. (Kingston Quarry,Cornwall) 1x1 £2 - 553 TETRAHEDERITE (Cu ?e) ;'L...cleavages with cerussite and or Pyrolusite (Merehead Quarry, Mendips,Somerset) 54 x 54 £2 269 MENDIPITE Pb/3...CORKITE Pb Fe PO/4 SO/4 This is a rare mineral for England, deep yellow radiations in goethite (Iron Crag |  | | Journal (issue) | | regional geochemical reconnaissance of South-west England. By P. L. Lowenstein and R. J. Howarth. ...... 478 Muscovite (‘Gilbertite’) from the Meldon aplite. By M. Nawaz Chaudhry and R. A. Howie. ... ....Geophysical surveys over two ore-bodies near Tavistock, Devon. By E. M. Durrance. ... ... ... 495 The sequence...... 521 Correlation of fold phases in S.W. England. By David J. Sanderson. ... ... ... ... 525 ...Pleistocene section west of Tregunna House. By B. B. Clarke. ... ... ... 551 Loess in Devon. By T. R. Harrod |  | | Journal (issue) | | Science, Plymouth Polytechnic, Plymouth, PL4 8AA, Devon. PROCEEDINGS OF THE USSHER SOCIETY VOLUME FOUR...Co., Kyrtonia Press, 115 High Street, Crediton, Devon CONTENTS CHAIRMAN'S REPORT......................formation of small-scale tectonic structures in south Devon (Abstract). By D.M. Hobson........................of the late Triassic - early Jurassic sequence in west Somerset. By G. Warrington.......................... 157 The Variscan granites of south-west England: a progress report. By J. R. Hawkes and J. Dangerfield |
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Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK