 | | Journal (article/letter/editorial) | | Petalite and spodumene in the Meldon Aplite, Devon ASPECTS of the mineralogy of the Meldon aplite fiave been...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...veins and forming disseminations in the surrounding aplite. Chaudhry and M a h m o o d (1979) noted the petalite...orthoclase may have been replaced by petalite. Spodumene at Meldon receives only two notices; the description |  | | 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 |  | | 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____________ |  | | 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 | | 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 |  | 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. |  | | 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) | | composition, 387; smectite/illite conversion, 393; S W England, in Variscan complex, 3 6 5 ; Spain, transition...nephrite jade, 31 DRYSDALE,D. J., petalite and spodumene, 758 DUBEAU,M. L., and EDGAR,A. n., priderite...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, |  | | Journal (article/letter/editorial) | | Petalite and spodumene in the Meldon Aplite, Devon ASPECTS of the mineralogy of the Meldon aplite fiave been...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...veins and forming disseminations in the surrounding aplite. Chaudhry and M a h m o o d (1979) noted the petalite...orthoclase may have been replaced by petalite. Spodumene at Meldon receives only two notices; the description |  | | 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 |  | | Catalog/List | | No. Byways, 20 Burstcad Close, Cobham, Surrey, England KTll 2NL EMAIL 2007 104 Phone 01932 862340 ...THAUSITE Modum, Buskerud,Norway 59 BOEHMITE Saga Quarry, Tvedalen, Norway Brown-purple mass in matrix Creamy...--· - . . - - ------ -·-··-·-· ---·7 ANNITE Saga Quarry, Tvedalen near Larvik, Norway 696 CHROME DIOPSIDE...lx2 £15 lxl £4 lx2 £8 2x2 £16 126 DIASPORE Saga Quarry, Tvedalen. Norway 1060 KORNERUPINE Bjordammcn,...lxl 90p lx2 £1.80 2x2 £4 Mica 295 NATROLITE Saga Quarry, Tvedalen, Norway Orange to red in feldspar.(Hydrothcrmal |  | | 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 |  | | Catalog/List | | rful , 18 miles NNW of St I cm £6 Ives. Cornwall. England No location details !cm £4 Colo urless to yellow...Ix ! £4 l x2 £8 New East Wheal Russell mine, Devon ,Eng land Madagascar ½ x½ £2.50 lins£4 I x½ £4...near Creston . Wyoming ,U.S. A Newhaven Sussex, England l x l £3 l x2 £5 While crystals well covering...paper available. Rich grey crystalline mass. Saga Quarry, Tvedalen near Larv ik, Norway Ix I £1.50 Ix I...Chrysotile. pale grey-green mass ive. County Bri dge Quarry,Lizard ,Cornwall Jx I £ I I x2 £2 Loch Scridain |  | | Catalog/List | | _1_0_0_ Byways, 20 Burstead Close, Cobham, Surrey, England KTll 2NL EMAIL ·_-2_0_0_6__, -· Phone 01932...Lochinver, Scotland 12 ALUMINITE Newhaven Sussex, England / MAGNESIOHORNBLENDE, dark green fibrous mass....------------6 ALBITE Kragero Norway 933 ANATASE Hingston Quarry,Comwall Black micro crystals in crystalline feldspar...501 ALLOPHANE New East Whcal Russell mine, Devon ,England variety VIRIDINE (Mangan rich variety) Olive... £4 lx2 £6 Ca SO/4 23 ANHYDRITE Staffordshire England Rich white to faintly blue masses lx2 80p 2x2 £1 |  | | Catalog/List | | I Byways, 20 Burstead Close, Cobham, Surrey, England KTll 2NL Phone 01932 862340 EMAIL richard.tayler@minerals...£5 -------------------------933 ANATASE Hingston Quarry,Comwall Black micro crystals in crystalline feldspar...501 ALLOPHANE New East Wheal Russell mine, Devon ,England grey bleby small botryoidal with possible Brochantite..._--~(~OI_~·-·· · -·- ·· ···ALUMINITE Newhaven Sussex, England Pure hard white sphere shaped nodule. Ixlins80p..._ _P_b_so_,_4____ 23 ANHYDRITE Staffordshire England Rich while to faintly,bluemasses lx2~0p ________ |  | | Catalog/List | | formed on 1111 ABHURITE 6 St Ives. Cornw all, England 85 18 in wreck on ship a gots _ in Sn_______ O...£6 I x 1/, ALSiO Brochantite on matrix. £4 Devon .England £2.50 ALMANDINE Large brown well fom1ed dodecahedral...hard white sphere shaped nodule. Newhavcn Sussex, England Al S0/4 ------ -------- ----- ·--- lx2 £6 ½x½£3...-�b Ag �b� 2 3 ANHYDRITE Ix2 50p Staffordshire England 2x2£1 2x3 £ 1.50 Ri ch white 10 faintly blue masses...ANNITE Pure black mica plate new Analys is. Saga Quarry, Tvedalen near Mica paper avail'!�_____ _ ___Larv |  | | Report (edition) | | British Regional Geology I * South-West England r * FOURTH EDITION e ■ - O ” ..y 1835 Geological...British Geological Survey Front cover: Bull Point, Devon (For full explanation see p. ix) NATURAL ENVIRONMENT...and Mr. G. Bisson (District Geologist, South-West England), as well as Professor W. R. Dearman and the...advances in our knowledge of the geology of south-west England. Most of the great expanse of Carboniferous...as oil companies turn their attention to the seas west of Britain, so attention is increasingly focused |  | | Book | | PO Box 315. Harpenden. Hertfordshire AL5 2ZD. England Telephone: +44 (0)1582 762413 Fax: +44 (0)870 055...production of e0pper. the mining areas of Cornwall and Devon became important producers of b th tin and copp...1\llaga::i11e, on minerals from localities in Cornwall. Devon. Cumbria and Yorkshire. He was renowned for his...Meldonaplitequany.nr Okehampton, Devon (leucophanite)' Meldonaplitequarry,nrOkehampton, Devon PottsGillmine...St Kew,Cornwall; Shallowfield Bridge,SouthMolton,Devon Tynebottom mine,Alston.CUm~ria mercury Chatsworth |  | | Report (edition) | | GEOLOGICAL SCIENCES British Regional Geology South-West England (TH [RD EDITION) By E. A. Edmonds, M.Sc. M...world war, interest in the geology of south-west England has further inten ified. Much valuable work...done, and in 1962 the newly l"ormcd outh-we t England field unit of the Geological Survey began ix-inch...Mr. G. Bisson (District Geologi t. South-We t England, editor). Private workers whose publications have...the countryside and natural history of south-west England. An EXHIBIT illustrating the geology and scenery | | | Report (edition) | | British Geological Survey Front cover: Bull Point, Devon (For full explanation see p. ix) •• ll On 1...Mr. G .. Bisson (District Geologist, South--West England), as well as Professor W. R. Dearman and the...advances in our knowledge of the geology of south-west England. Most of the great expanse of Carbonif�rous...as oil companies turn their attention to the seas west of Britain, so attention is increasingly focused...age-determinations of rocks of south-west . . . . . . . Facing England 1 112 List of Geological Survey |  | | Journal (volume) | | non-member subscription rates for this volume are: UK £13 (including P&P) and Overseas £15 (including P&P)...12, p. 43 for details). Penryn Granite Company’s quarry at Halvosso, Longdowns, Cornwall. Jim Knight Collection;...LUV (middle) and SUV (bottom). East Face, Croft Quarry, Croft, Leics. Frank Ince specimen and photo (FI-1485;...southwest Leicestershire Francis Ince 3–29 Spodumene from the Peatfold Pegmatite, Glen Buchat, Aberdeenshire...yielded Scotland’s first recorded specimens of spodumene. Our third contribution, from Alan Barnes and |  | | Catalog/List | | New Minerals in this list Acanthite, Axinite from Devon,Celsian from Wales,Clinozoisite,Colemanite crystals...1cm £6 ✓ on a ship wreck in 1885 Ives, Comwall, England ABHURITE SnO OH DESCRIPTON Pyroxene Na Fe...AlS0/4 Al S0/4 ✓ New East Whcal Russell mine, Devon .England Madagascar Railway cutting nearCreston . Wyoming...Wyoming ,U S. A Newhavcn Sussex. England I x2 £6 ½x½ £2.50 I ins £4 lx2 £2.20 IX½ £5 I x½ £4 lxl...Rich white to faintly blue masses Staffordshire England 25 ANKERITE-KlJTNAHORITE Rich fawn massive. xrayed |  | | Journal (article/letter/editorial) | | 897 Alafoteib, Egypt, psilomelane, 235 Albite, Devon, anal., I79; Scotland, anaL, 819 Algarvia, SSo Miguel...see VR,~NA(S.), 837 development of garnet in, 649; West Pakistan, Basalt, Rdunion, anal., rhyodacite glass...traps, 527 CHAUDHRY (M. N.), Feldspars from the Meldon aplite, I79 Chenevixite, Mexico, 54I Chester, Massachusetts... blanfordite, diopside, fassaite, pigeonite, spodumene Closepet, Mysore, India, granite, 678 Coalinga...Shetland, 626 Cornwallite, Shetland, 626 Corundum, West Pakistan, alteration to margarite, Io6; Nigeria |  | | Journal (article/letter/editorial) | | and lithian muscovite occur in high-pressure spodumene, low-pressure petalite, phosphorus-enriched amblygonite...morphologies or paragenetic position. Lepidolite from spodumene subtype pegmatites are generally slightly less...presence of abundant lithium aluminosilicates (spodumene, petalite) and/or lithium phosphates (amblygonitemontebrasite)...dominant lithium mineral present (Cern¢, 1989). The spodumene subtype represents a high-pressure, low-temperature...core and/or in pegmatitic pockets. Within the spodumene, petalite and amblyg0nite subtype pegmatites, |
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