 | | Journal (volume) | | with minor hematite on cream dolomite. Florence Mine, Egremont, Cumbria. David Green photograph. BACK...2012 PAPERS Geology and mineralisation at Florence Mine, Egremont, Cumbria Brian Young 3-18 A geochemical...mineral assemblage of the Mendip Hills, Somerset, UK using a stability field model Trevor F. Bridges,...mineral species at the Benallt Manganese Mine, Rhiw, Pen Llŷn, Gwynedd, Wales Tom F. Cotterell 29-40...experience of an underground tour of the Florence Mine in Cumbria. With the closure of Florence, it is |  | | Journal (volume) | | flat, Admirality Concession Flat, Nentsberry Haggs Mine, Nenthead, Cumbria. Specimen width 60 mm. Trevor...Ddu and Bwlch Mawr, Clynnog-Fawr, Caernarfon, Gwynedd, Wales Tom F. Cotterell and Michael S. Rumsey 17–23...minerals from the manganese mines at Rhiw, Pen Llŷn, Gwynedd, Wales, including the first British occurrences...Kinoshitalite from Bennalt Manganese Mine, Rhiw, Pen Llŷn, Gwynedd, Wales: a first British occurrence Alan...Llancynfelyn, Central Wales John S. Mason 32–35 The mineralogy of Pim Hill Mine, Shropshire, with a |  | | Report (issue) | | investigations of the manganese deposits of Rhiw, western Llyn, North Wales M J Brown and A D Evans \ BRITISH...investigations of the manganese deposits of Rhiw, western Llyn, North Wales Geochemistry M J Brown, BSc Geophysics...site/galena vein from the Gwynfynydd Gold Mine, near Dolgellau in North Wales This report was prepared for the...investigations of the manganese deposits of Rhiw, western Llyn, North Wales. British Geological Survey Technical...area lv/ynydd Rhiw area Detailed magnetic surveys Tyddyn lvfeirion Nant y Gadwen Mynydd Rhiw 11 13 21 24 |  | | 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 |  | | Report (issue) | | Mn2+ 5 Al(Si3 Al)O10 (OH)8 Pennantite ° c 2001 Mineral Data Publishing, ver sion 1.2 Crystal Data:...14.40 ® = 90:0 ± X-ray Powder Pattern: Benallt mine, Wales. 7.1 (100), 3.57 (80), 2.43 (80), 14.3 (40)...3.4 [96.81] 99.93 [100.0] [7.7] (1) Benallt mine, Wales; MgO and H2 O determined on an impure sample;...friedelite. Distribution: In the Benallt mine, Rhiw, Lleyn Peninsula, Wales. From the Ushkatyn and Dzhumart...deposits, Atasu district, Kazakhstan. In the Harstigen mine, near Persberg, VÄa rmland, Sweden. At Bald Knob |  | Clark, A. M., Smith, D. A., Symes, R. F., Tandy, P. C., Hart, A. D. (1995) Catalogue of Type Mineral Specimens in the Natural History Museum, London - With an appendix listing mineral species and varieties originally described from the British Isles. Natural History Museum, London. | Book | | the description of the species nominates Socrates mine, Sonoma County, California, as the type locality... Aerugite (Neotype) BM 1963,00481 South Terras mine, St-Stephen-in-Brannel, Cornwall, England R.J. Davis...34. Afwillite (Cotype) BM 1925,00080 Dutoitspan mine, Kimberley, South Africa J. Parry and F. E. Wright...277. Agardite (Cotype) BM 1978,00024 Bou Skour mine, Bou Azzer, Jbel Sarho, Morocco J.E. Dietrich, M...199. Apachite (Cotype) BM 1980, 00532 Christmas Mine, Gila Co., Arizona, USA F.P. Cesbron & S.A. Williams |  | | Book | | GEOLOGICAL SURVEY Geology of the country around Aberdaron, including Bardsey Island ., f' ., ..... ...for 1 :50 000 geological sheet 133 (England and Wales) This memoir, and the 1:50 000 map that it describes...Environment Research Council and the University of Wales College of Cardiff. The interpretations presented...deposits of head are restricted to the area around Rhiw in the south-east Complex sequences of diamicts...manganese ore. Ordovician INTRUSl\7E ROCKS ABERDARON BAY GROUP undivided or Porth Meudwy Forn1ation |  | | Journal (issue) | | fromFrizington, Cumbria,England. Stereomicroscopes The UK ]011malof Mines and Minerals publishes articles of...CIRCULATION, SALES & FINANCE Jean C. Spence SADDLEBACK MINE Peter Briscoe • David McCallum • Paul Nicholson...the Editorial Board. fEITKNECHTITE FROM BENALLT MANGANESE MINE Publication ofinformation on a collecting...0952-2409 Tom Cotterell 49 NORTH DEVON UNITED MINE Mike Rumsey • Mike Savage 53 PIUNTING DY Ratcliff&...Worksop, Notts. S80 2EE CLASSIFIED ADVERTISEMENTS UK Journal of Minos & Minerals No. 29 -1- EDITORIAL |  | | Journal (issue) | | UK C TS 2 EDITORIAL COVER.Smalt-blueplumbogummite with minor pyromorphite on vein quartzfrom RoughtonGill...Ballard 39 EPIDOTE-(SR) AND PIEMONTITE-(SR) BENALLT MINE FROM NEWS and EVENTS Peter J. Briscoe David...thos of the Editorial Board. GORCEIXITE FROM BENALLT MINE Tom Cotterell • Richard Tayler 61 Publication...N0952-2409 BOOK REVIEWS 68 PRINTEDBY ADVERTISEMENTS UK Journal of Mines & Minerals No. 33 -1- EDITORIAL...the journal by subscription. We have examined the UK subscription rates and these will remain at £16 for |  | | Journal (article/letter/editorial) | | from no. 5 orebody of the Benallt mine, Rhiw, Carnarvonshire, North Wales. This is the specimen on which...chlorite from veinlets in other specimens of the Benallt ore and more X - r a y photographs were taken it...between the chlorite we have described and named pennantite (Min. Mag., 1946, vol. 27, pp. 217-220) and the...pleochroism and absorption are similar to those of pennantite ; fi - ~, parallel to the cleavage, very dark...for pennantite a' 1.646• fi ~ y 1.661 ~0"001. This implies a higher birefringence for pennantite, but |  | | Journal (article/letter/editorial) | | 1946 Vol. XXVlI Pennantite, a new manganese-rich chlorite from Benallt mine, Rhiw, Carnarvonshire. B...March 28, 1946.] H E manganese ores of the Benallt mine are pervaded b y an orange-eoloured mineral...Hallimond examined some sections of ore from the old Benallt mine for Dr. C. A. Matley and suggested t h a t one...n t mines, Nant-y-Gadwen, a mile SW. of the Benallt mine. This he regarded as a manganiferous variety...part of the study of the manganese ores of the Benallt mine, undertaken in collaboration with Dr. A. W. |  | Peacor, Donald R., Essene, Eric J., Simmons, William B., Bigelow, and Wilbur C. (1974) Kellyite, a new Mn-Al member of the serpentine group from Bald Knob, North Carolina, and new data on grovesite. American Mineralogist, 59 (11-12) 1153-1156 | Journal (article/letter/editorial) | | manganese chlorite which is chemically similar to pennantite. Introduction serpentinegroup. Subsequent,...as a new mineral from the Benallt mine, Rhiw, Carnarvonshire, North Wales. They concludedthat this phaseis... ," and that it is relatedto the Mn-chlorite,pennantite,as cronstedtite is to the Fe-chloritechamosite...manganesechlorite pennantite (except that the value of c is one half that of pennantite).Sincethe chemical...chemical analysesfor pennantite and grovesite are nearly identical, it seems clear that grovesiteis closelyrelatedto |  | | Journal (article/letter/editorial) | | 108 Pyrophanite from the Benallt mine, Rhiw, Carnarvonshire. By W. CAMPBEI,L SMITH, ~I.C., T.I)., M...the minerals occurring at the Bcnallt manganese mine ill the vein from whi(~h material for the chemical...chemical analyses of the new manganeserich chlorite, pennantite, was separated. As this was only the third record...drusy cavities in manganese ore ~tt the Harstig mine, Pajsbcrg, near Pcrsberg, Wermland, Sweden. The...other record of the mineral is from the Piquery mine of the Queluz district," Minas Geraes, Brazil. Here |  | | Journal (article/letter/editorial) | | One very intensely colored chlorite type of the pennantite population may contain Fe 3+ or Mn 3+ or both...1955) with 33.83 w.% MnO (=6.66 Mn 2+ p.f.u.). Pennantite and gonyerite are distinguished on account of...More recently, three Mn-rich chlorites named pennantite were described by Kayupova (1965, 1967); Chopin...fact, given separate mineral names: These are pennantite (Smith et al. 1946) with 38.93 w.% MnO (=7.77...southwest of Stoumont or 12 km due west of Stavelot. The mine dumps visited are on the eastern side of the road |  | | Catalog/List | | 1077 ■ ALLOPHANE Hawkswood Mine, Cornwall 220 ■ CLINOSAFFLORITE Capitol Mine. Gowganda, Ontario.Canada...2x3£30 96 ■■ CRYPTOMELANE Moel Llyrnant, Arenig, Gwynedd, Wales Rich black massivt: to botryoidal with some...£3 lx2£6 CurichAdamile 766 ■ DIOPTASE Christmas Mine, Gila County, Arizona ,USA Green elongated micro...lxl£6 CuSi0 .. - - -- -·- 131 ■ DOLOMITE Carrock Mine, Caldbeck Fells, Cumbria FERROAN DOLOMITE, rich...massive lxl £1 lx2 £2 2x2 £5 104 ■ EMMONSITE Bambolla Mine, Moctezuma, Mexico Green crusts on matrix. quite |  | | Catalog/List | | flat calcite-- attractive piece 6x4. Whitesmith Mine Stontian Scotland £25 7 ElJDIAL YTE rich red masses...covering all over the top surface 4x3cm Cassagna Mine, Ne Liguria Italy £ 25 14 STRONTIO-ORTHO JOAQU1N1TE...pinkish micro crystals on Boracite crystals Boulby mine Loftus Yorkshire 3x2cm £18 16 PRICEITE hard white...orange crystal sections on lx2cm surface Molinello Mine, Val Graveglia Italy £8 18 NATIVE COPPER a cleaned...long in Braunite, Piemontite and quartz Praboma Mine, St Marcel ,Aosta Italy 3.5 x3cm £12 25 RHODIZlTE |  | | Journal (volume) | | non-member subscription rates for this volume are: UK £13 (including P&P) and Overseas £15 (including P&P)...included by an unknown black sulphide, from Ladywash Mine, Eyam, Derbyshire. Don Edwards specimen and painting...2019 EDITORIAL 2 5 PAPERS Enargite from Ladywash Mine, Eyam, Derbyshire Steve A. Rust 6 10 Manganite...Barium-rich muscovite and hyalophane from Benallt Mine, Rhiw, Pen Llŷn, Gwynedd Tom F. Cotterell, David I. Green...John Jones from the Hucklow Edge Vein at Ladywash Mine in Derbyshire. His sharp eyes spotted the rare copper |  | | Journal (article/letter/editorial) | | black crystals are found at the Atlantic City iron mine, Wyoming. The obsolete varietal names thuringite...International University] at 20:06 23 August 2013 Foster mine, Brewster, New York; transparent, dark green, tabular...Russia, excellent crystals come from the Saranovskiy mine and many other places in the Ural Mountains; sharp...clinochlore, variety kämmererite, from the Pembegul mine, Erzincan, Turkey. Largest crystal is about 5 mm...chondrodite and white calcite from the Tilly Foster mine, New York. Figure 8 (bottom). Polished slab (4 × |  | | Journal (issue) | | and one member suggested that this could be in the UK or EU. COST A location with on-site accommodation...were identified: geological/mining walks, museums (UK or EU) and member's collections. ADDITIONAL COMMENTS...shown what the museum had from the Earl Ferrers' mine in Dimminsdale in North Leicestershire. I was disappointed...Subsequently I met Sir Arthur in the field at Ladywash Mine at Eyam and later had long discussions with him...at other minerals that have been important in the UK and then the important minerals we have to import |  | | Journal (article/letter/editorial) | | MINERAL NAMES Pennantite W. Cer*nr'' Surrn, F. A. BlN*rsrrn lNo Max H. Hrv, pennantite, a new manganese...manganese -rich chlorite from Benallt mine, Rhiw, Carnarvonshire. Mineralog. Mag.,27, 217_220 (re46). Crrnurcer...and microscopic study of material from claremont mine, Gordfield, Nevada, showed that it was a mirture |  | | Journal (article/letter/editorial) | | in drusy cavities in manganese ore at the Harstig mine, Pajsberg, Sweden. The associatedminerals are garnet...reported by A. O. Derby (1901) from the Piquery mine of the Queluz district, Minas Gerais, Brazil, as...white asbestiform mineral." Later, from the same mine, Derby (1908) reported transparent red grains of...occurrence of pyrophanite is from the Benallt mine, Rhiw, Carvarvonshire, Wales, where W. Campbell Smith (1947)...(1947) found the mineral associatedwith pennantite. The identity of this pyrophanite was confirmed by r-ray |  | | Catalog/List | | with micro Sphalerite on 2x2 matrix Lers Malines Mine, Gard, France £20 4. BENTORITE a very rare, Cr containing...micros too. Panteg-y-Gaseg Mine, Amlwch Anglesey, Wales £18 I 0. PENNANTITE small brown plates scattered...matrix. Plates are about I to 1.5 mm size (Benallt Mine,Lleyn, Wales) £30 11. BOURNONITE good blocky grey crystals...crystals,. all over 2.5 x2.5 inch surface Likasi Mine, Katanga Congo £25 14. SIDERITE rich red-brown...with some minor Quaitz. 3x2.5 inches Betws Garmon Wales £15 15. MAGNESITE excellent colourless/white rhombic |  | | Journal (issue) | | Blue Chisel Point Baryte Blades from Force Crag Mine, Cumbria: .......................... . 14 - 15...now have the prospect of a world-class tungsten mine being developed atHemerdon in Devon, a full-scale...collection contains numerous excellent pieces from the UK and abroad. On one occasion he was invited to exhibit...on from the successful event last November, the Wales & West Branch, in conjunction with the Cheltenham...Museum will give a talk on new mineral finds in the UK as well as, hopefully, setting up a display related |  | | Journal (article/letter/editorial) | | ferric iron in large parl at least is primary. Pennantite, the only other known high-manganesechlorite...of the fainter lines differ. (The pattern of pennantite is identical with that of thuringite from Schmiede-feld...NnHnv, M. H. (1946),Pennantite, a new manganeserich chlorite ffom Benallt mine, Rhiw, Carnarvonshire MineroJ |  | | Journal (issue) | | UK TS 2 EDITORIAL 2 BUXTON COVER:A superbgreenfluoritetwin25 mmon edge from the Heights Mine, Westgate...Piddcollection. MUSEUM Ros Westwood 6 MINERAL NEWS 11 The UK ]011mal ef Mines a11dMinerals publishes articles...subscriptions and advertising. BARITE FROM BARRAS END MINE Peter Briscoe 15 DIGITAL MICRO-PHOTOGRAPHY David...FINANCE Jean C. Spence CESAflOLITE FROM EAGLEBROOK MINE Tom Cotterell 39 NEWS and EVENTS Mick Wolfe Richard...Richard Bell WURTZITE FROM LOCKRIDGE MINE Ben Grguric • Ernest Nickel 41 DESIGN Julie Ballard COPPER |
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Benallt Mine, Rhiw, Aberdaron, Gwynedd, Wales, UK