 | | Journal (article/letter/editorial) | | distribution in Chidlaw Link Zone, Gwynfynydd mine, Dolgellau, North Wales Simon C. Dominy, Roland F. G. Phelps...vein-gold deposit in the county of GwSznedd, North Wales. The veins cut the Carnbrian Maentwrog, Clogau and...of qwartz with galena, sphalerite, chalcopyrite, pyrite and rninor arsenopyrite. The veins occupy dorninantly...persistence and geometry are of major relevance to the mine geoiogist who is undertaking exploration, evaluation...deposition in the veins at Gwynfiznydd mine, Dolgellau, North Wales, are being investigated on the basis |  | | Journal (article/letter/editorial) | | mesothermal gold lodes of the Dolgellau gold belt, North Wales Downloaded by [RMIT University Library] at 20:36...width at outcrop, within the Caledonides of North Wales. It runs ENE from the Cardigan Bay coast, passes... In 2000 the National Museums and Galleries of Wales (NMGW) acquired, by donation, an important suite...1997 (Gwynedd) phase of Minescan6 (a research partnership project into the metallogenesis of Wales that...NMGW and funded by the Countryside Council for Wales). The addition, where necessary, of further polished |  | | Book | | A Mineralogy of Wales RfCHARD E. BEYfNS Ocpartmellf o[Geolngy, Nmin11a/Museum of\Valcs, Cardiff AMGUEDDFA...Colliery, Ponh, Mid Glamorgan. National Museum of Wales specimen 48.264.GR 175. ex Cymmer Welfare Library...CE 6 I CES IN WALES 9 30 127 138 6 INTRODUCTION The mineralogy of Wales is diverse. with over...reveal the presence of additional species new to Wales. and perhaps new to the British Isles. It is also...completely new to cience will be discovered in Wales. as techniques for analysing specimens become ever |  | | Book (edition) | | Gold Occurrences in the UK A Gold Prospector's Guide LEE GARY PALMER MSc Published in the United...40 Archers Ave Irvine, Ayrshire KA11 2GB Scotland UK Content copyright© Lee Gary Palmer, 2019 The right...Contents Acknowledgements Notable Nuggets of the UK Preface Gold The Word The Element Origin Locations...Isle of Man Wales South Wales - South Glamorgan South Wales - Carmarthenshire South Wales - Pembrokeshire...Mid Wales - Powys Mid Wales - Ceredigion North Wales - Gwynedd North Wales - Anglesey North Wales - Conwy |  | | Journal (issue) | | heralded technological catastrophe in which all our pyrite specimens turned into limonite overnight! Instead...to Sheppey, Writhlington and to Blaengwynlais in Wales for collecting, and to London for sightseeing. I...architecture is magnificent. Bou Azzer is a cobalt mine where you can find skutterudite, CoA5:2-3 and erythrite...this material on some tips before he approached the mine to ask permission. Not only was he not allowed to...to collect, but he was escorted from the mine area under vehicular escort! At some other mines Peter |  | | Journal (issue) | | ·rREASURES OF THE EARTH� SOCIETY MEMBERS' FINDS FROM THE UK. LOCAL SOCIETIES AND PRIVATE COLLECTORS. SALES &...well known minerals found in the area of the south Wales coalfield such as Milkrite needles and the brilliantly...Sphaleritc from Trclogan mine with Fluorite which is a relatively rare species in Wales. Many superb specimens...ofFfestiniog who as H.M. Inspector of Mines for north Wales was obviously able to make the most ofhis travels...coloured by malachite from the Aberlynn Mine near Bctws-y-Cocd, Gwynedd was found to be a new species. This |  | | Report (issue) | | Association. Special care should be taken at old mine workings some of which may be in a dangerous condition...establishment of a sedimentary basin that covered all of Wales, much of England, parts of lreland and extended...the end of the Tremadoc. Although m uch of orth Wales wa. emergent at this time, Lynas ( 1 973) showed...deposit worked in this area is at the Turf copper mine where peat, impregnated with copper minerals deposited...goldmine ·r·he mine is privately owned, but there are public footpaths arou nd the mine area frorn which |  | | Journal (article/letter/editorial) | | —THE GEOLOGY OF THE DOLGELLEY GOLD-BELT, NORTH WALES. By ARTHUR R. ANDREW, M . S C , F.G.S. (Concluded...present in the quartz. The lode is confined to the Vigra Beds, Downloaded from https:/www.cambridge.org/core...throughout its length of three-quarters of a mile to the Vigra Beds, and it is but seldom, associated with the...of north, and its dip vertical. It traverses the Vigra Beds all the way, and is associated with small greenstone... but 30° south of east. It courses through the Vigra Beds, and is confined to very near their junction |  | | Journal (article/letter/editorial) | | minerals new to Britain Tellurbismuth from North Wales. For many years the bismuth telluride tetradymite...the gold occurring at the Clogau mine, near Dolgelley, North Wales, was accompanied by tetradymite or...of this so-called ' tetradymite' from the Clogau mine that had formerly been in an old family collection...I collected from a small dump at the adjoining u mine about 30 years ago. There are also several specimens...my own collection and from those collected at Vigra mine, and examination of samples showed that they |  | | Journal (article/letter/editorial) | | mineralisation and ore controls at the Clogau mine, Dolgellau, north Wales, United Kingdom S. C. Dominy*1,2,3 and...of 17 g/t Au, Clogau is the largest and richest mine in the Dolgellau gold-belt and is the most prolific...ore shoots. Keywords: Dolgellau gold-belt, Clogau mine, Gold-quartz reefs, Ore controls, Ore shoots Introduction...Robert Robinson Avenue, Oxford OX4 4GA, England, UK 2 *Corresponding author, email sdominy@snowdengroup...published works to elucidate ore controls in support of mine exploration (Dominy, 2011, 2012). This contribution |  | | Journal (article/letter/editorial) | | Northumberland: baryte, gypsum, halite, marcasite, pyrite, sideronatrite, 983. Sandford Hill, Weston-super-Mare...wo]framite, 995. Pengenna mine, St. Kew: meneghinite, 424. South Terras mine, St. Stephen-in Brannel:...argentojarosite, li. WALES Benallt mine, Rhiw, Caernarvonshire: celsian, 508. Clogau mine, Dolgelly, ~ier...~ier.ionethshire: tellurbismuth, 424. Vigra mine, Dolgelly, Merionethshire: tellurbismuth, 424. SCOTLAND...e c h o s l o v a k i a (~eskoslovensko) Plavno mine, Krus'~ tlory, Bohemia: stannian andradite, 379 |  | | Catalog/List | | refere nce and specime n numbe r(s) 25 3 Inde x by mine ral showing spe cime n numbers 39 4 Index by...Name of the speci es. Locality. including name of mine or quarry, nearest town and county, and six figure...Waterba.nk mine Waterbank mine Hilton mine Esgair Hir mine Milltown quany Esgair Hir mine Broadlaw vein...Mllttownquany Wh.Jane Comw. HIiton mine Waterbank mine Mllltown quany Eaglebrook mine Uechwedd Helyg Wh.Gorland...Waterbank mine Waterbank mine Milltownquany Waterbank mine Wh.Fortune Lyme Regis Dry GIii mine Roughtongill |  | | Catalog/List | | Montana, USA. Blaclpyrite. RF.Ml. 2 TETRAHEDRITE with SIDERITE & QUARTZ,...vein in banding. GRF. LMI. £6.00 3 APATITE, Etiro Mine, Karibab Disbict, South Africa. Sea blue soild XN...sliver. GRF. SM!. £10.00 11 CASSITERITE, Birch Tor Mine, Dartmoor, Devon. Massive ore. Olab on specimen...STIBICONITE after STIBNITE and STIBNITE, Knipes Mine, New Cumnock, Ayrshire, Scotland. Yellow chalky...VGRF. Ml. .- -£12.00 16 TETRAHEDRrTE, Silver Vein Mine, St Winnow, Cornwall. Glistening bright silvery |  | | Report (volume) | | Britain Volume XXX COPPER ORES OF TlIE MIDLANDS, WALES, THE LAKE DISTRICT AND THE ISLE OF M~i\N. BY HENRr·...exploitation. The mines are scattered over the Midlands, Wales and the North of England. Most of them have been...this information. Our thanks are due to numerous mine managers for assistance while visiting their mines...of gold in the ore of many of the lodes in North Wales may encourage further exploitation. JOHN S. FLETT... IV.--MINES WORKED IN THE LODES AND VEINS Oli' WALES AND ITS BORDERS :-Introduction, pp. pp. 32-39 ; |  | | Catalog/List | | greenish chlorite. 40x40x30mm. £48. AZURITE. Yangchun Mine, Guangdony Prov. China. A superb dark blue lustrous...Displays well. 30x50x50mm. £125. 5. BERYL. Huya Mine, Sichuan Prov. China. Unusual flat tabular pale...xls 50x50x20mm. £40. 6. CASSITERITE. Polberro Mine, St Agnes, Cornwall. 7An intergrown ‘ ' group of...matrix. 30x20x15mm. £45. 7. CASSITERITE. Dolcoath Mine, Camborne, Cornwall. Chlorite matrix showing several...£48. 8. CASSITERITE AND TOURMALINE. Egloshellan Mine, St Austell, Cornwall. Rich veinstone showing sharp |  | | Journal (issue) | | Hill London NW3 2AH CONTENTS Minerals From North Wales The Trials and Tribulations of Mineral Identification...Membership Details 2 5 19 20 MINERALS I ROM NORTH WALES Mike Rothwell During the 1996 BMS Symposium, Richard...on the mineralogy of a few chosen sites in North Wales. The following is a short summary of the workshop...chose Eclusham Mountain Wedding Cave Mine at Bwlchgwyng, Bryngwiog Mine on Halkyn Mountain, and Great Orme...Llangollen (OS GR SJ 255.503). At nearby Wedding Cave Mine (OS GR SJ 265.541) there is galena mineralisation |  | | Journal (issue) | | OF THE EARTH - SOCIETY - MEMBERS' FINDS FROM THE UK. LOCAL SOCIETIES AND PRIVATE COLLECTORS. ADMISSION...Assistant Kccpcr of Geology at the National Museum of Wales in Cardiff and Head of the Mineralogy/Petrology...known minerals found in the area. of the south Wales coalfield such as Milkrite needles and the brilliantly...Sphalerite from Trelogan mine with Fluorite which is a relatively rare species in Wales. Many superb specimens...ofFfestiniog who as HM Inspector of Mines for north Wales was obviously able to make the most of his travels |  | | Journal (issue) | | Geology, National Museum of Wales, Cathays Park, Cardiff CFl 3NP, Wales, U.K. CO-EDITOR: Peter A. Williams...Chemistry, Universi ty of Wales College of Cardiff, P.O. Box 912, CardiffCFl 3TB, Wales, U.K. JOURNAL MANAGER:...World Occurrence from the Dolgellau Gold Belt, Wales R.E.Bevins and C.J. Stanley 67 Infrared Spectroscopy...Caradon Mine, Cornwall I.A. Lawrence 81 NOTE Cinnabar from Machen Quarry, Machen, South Wales T.F. Bridges...to 1'. Pieces 2'x 2' to 4'x 3' from £5. FLORENCE MINE. CUMBRIA, Botryoidal Hematite, plus some pieces |  | | Report (issue) | | Primary occurrences Placers 7 7 7 Resources England Wales Scotland Isle of Man Northern Ireland 9 9 11 13...37 38 38 39 39 Page Production United Kingdom Wales Scotland World production 41 41 43 43 43 Trade...Gold was mined in the United Kingdom, mainly in Wales, for centuries, and about 4 tonnes of gold has been...91 per cent, was reported from the Great Boulder Mine near Kalgoorlie. Native gold at the surface and...host minerals such as arsenopyrite, pyrrhotite and pyrite or combined in tellurides. In middle-temperature |  | | Catalog/List | | clear,tabular MIN,118. 10. ANNABERGITE.Kamareza Mine,Laurium,Greece.Dr HG Weller label. Quartz fragment...divergent and complex aggregates. Small,glittery pyrite on underside. Excellent specimen. SC,120. Minver... 14. APATITE VAR FRANCOLITE. Simms Lode,Geevor Mine,Trewellard,Cornwall. Choice,very rich specimen....Aragonite to 10mm. LC ,.tlO. 17. ARAGONITE.Kamareza Mine,Laurium,Greece. 3 specimens. Specimens A and B.... ARSENOPYRITE/BORNITE/CASSITERITE. South Crofty Mine,Camborne, Cornwall. Grey sulphidic,vuggy matrix |  | | Report (issue) | | Mineral exploration in the· Harlech Dome, North Wales I ·t I I I· I I I I I I • I I· I I I I 1....Mineral exploration in the Harlech Dome, North Wales. Geology P. M. Allen, BSc, PhD Geochemistry D....Geochemical and geophysical investigations around Garras Mine, near Truro, Cornwall Molybdenite mineralisation...Shetland Preliminary mineral reconnaissance of Central Wales Report on geophysical surveys at Struy, Invernessshire...associated with the Skiddaw Granite near Carrock Mine, Cumbria Investigation of stratiform sulphide mineralisation |  | | Journal (article/letter/editorial) | | Israel, anal., opt., cell-size, 385; New South Wales, anal., opt., X-ray, 561; Rajasthan, India, 1018... bismutite, 785. Alunite, lsrael, derived from pyrite, 84. Amosite, Transvaal, anal., opt., thermal decomposition...formation of secondary minerals, 408; New South Wales, anal. of glass in, 847. BASDEN (I~.), see NAS~AR...Bearpaw Mtns., Montana, pseudoleucite, 596. Benallt mine, Rhiw, Caernarvonshire, celsian, 508. Berek compensator...), Minerals of the Willyama Comlolex, 5rewSouth Wales, Pt. I, 306; Pt. II, 561; and see JoEm~s (E. A.) |  | | Book | | ) PLATE I, FRONTISPIECE THE MINERAL WEALTH WALES AND ITS EXPLOITATION TREVOR M. THOMAS M.SC.,...the Geology Department of the National Museum of Wales have always been placed at the disposal of the author...Geography and Anthropology, University College of Wales, Aberystvryth, for his sustained interest during...Keeper of the Geology Department, National Museum of Wales, kindly assisted in the selection of some of the... 1 WEALTH AND COAL MINING IN THE SOUTH WALES II COALFIELD RECENT TRENDS GENERAL CONSTITUENT |  | | Journal (article/letter/editorial) | | metasediments of the Vale of Ffestiniog, North Wales T. R. W. Hawkins and f . G. Jones Middlesex Polytechnic...style. KEY WORDS Folding Cleavage Cambrian North Wales 1. introduction and lithostratigraphical setting...relation to the maximal fold structures of North Wales. Figure 2. Geological map of the Vale of Ffestiniog...sedimentary facies and provenance of the Cambrian of Wales and an overall comprehensive review of the Merioneth...substantial part of the succession from the top of the Vigra Member to the middle of the Dolgelly Format ion |  | | Journal (article/letter/editorial) | | layer of deep green mudstone, crowded with cubes of pyrite and microscopic octahedra of magnetite, immetliately...sharply by the lowest beds of the Lingula Flags-the Vigra Flags or lower division of the Maentwrog Beds according...between the dark Clogau Shales below and the typical Vigra Flags with prominent "ringer" bands above. These...striped sandy shales which form a small scarp. The Vigra Flags, with several small sills, are well exposed..... The Iron-ore Oolites and Pisolites of North Wales," Quart. Journ, Geol. Soc., vol. Ixxxix (1933), |
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