 | | Journal (article/letter/editorial) | | compositionallyequivalentto a mixture of pyrrhotite, phenakite, and fayalite, but danalite's natural occurrenceswith.../magnetitefield boundary. Outside this field, phenakite (or, at low temperatures,bertrandite)is stablewith...danalite-helvite solid solutions occur as overgrowths on phenakite with magnetite,pyrite, and quartz. Danalite is...FerSiOo 2 FeoBe,(SiOo)rS danalite: troilite * phenakite* fayalite Troilite (Tr) is not a common terrestrial...incompatibilities lent to a mixture of troilite, phenakite, and fayalite, (unstable4ssemblages) in the Be |  | | Journal (article/letter/editorial) | | December 1961 No. 255 Beryllium minerals in Cornwall and Devon: helvine, genthelvite, and danalite...occurrences in Cornwall and one in Devon, and of the latter, one occurrence in Cornwall, are described...old specimens with the vague locality 'Redruth', Cornwall; occurrences at four Cornish localities are described...chemical analysis. Previous occurrence of danalite in Cornwall. Danalite is the only member of the helvine group...tetrahedrons with quartz and mispickel, Redruth, Cornwall', and was described by Miers and Prior 2 in 1892 |  | | Journal (article/letter/editorial) | | University Auburn, Alabama 36849 cookrob@auburn.edu Phenakite Downloaded by [University of Tennessee, Knoxville]...rarer topaz, garnet, and phenakite specimens. Perhaps America’s best-known phenakite occurrence, and certainly...in the recent book American Mineral Treasures. Phenakite from this exceptional locality has been chosen...mineral in this issue’s Connoisseur’s Choice. Phenakite varies from colorless through yellow, pink, and...localities, and, when colorless, phenakite can resemble quartz. Phenakite exhibits a Mohs hardness of 7 |  | | Journal (issue) | | UK Journal of mes ·and .Minerals Issue SprJng 1989 , No ...6 Pr:f ee ~3.95 ·- • r .. Arnold...Trewellard, Penzance, Cornwall. TR19 7SU Tel: (0736) 788305 Calcite (Cornwall) UK Journal of Mines and...Merritt Cassiterite from Whiteworks Carharrick, Cornwall R. Morton.Dr. K.F.G. Hosking 22 Mining Methods...Boscawcn Diagonal Shaft at Botallack Mine. St. Just. Cornwall. Reproduced hy permission of City of Manche... Editorial Our objective to publish three issues of the UK Jourrral of Mines and Minerals annually has yet to |  | | Journal (volume) | | K. A. Dyer, Hoddlesden, Darwen, U.K. N.J. Elton, St Austell, U.K. I.R. Plimer, Kensington Gardens, S...non-member subscription rates for this volume are: UK £13 (including P&P) and Overseas £15 (including P&P)...proudly displaying a copy of Minerals of Northern England. Roy Starkey photograph. Journal of the Russell...Herderite-hydroxylherderite series minerals from Chywoon Quarry, Cornwall Tom F. Cotterell, Neil Hubbard and David Moulding...euhedral schulenbergite at the Penberthy Croft Mine, Cornwall John Betterton and Ian E. Grey 34–35 PAPERS |  | | Journal (article/letter/editorial) | | Skarn garnets from South-West England SKARN GARNETS FROM SOUTH-WEST ENGLAND D.H.M. ALDERTON Alderton...Skarn garnets from South-West England. Geoscience in South-West England, 14, 91–97. Chemical analysis...analysis of garnets from skarns in south-west England has revealed that they are all grandites, containing at...Sciences, Royal Holloway, Egham, Surrey TW20 0EX, UK (E-mail: d.alderton@rhul.ac.uk) Keywords: skarn...occur in several geological settings in south-west England, yet detailed descriptions are typically brief |  | | Journal (article/letter/editorial) | | increasingactivities of the acid componentsF•O_I and P•O•, phenakite, Be•SiO4,becomesstable with fluorite or fluorapatitein...problemto be discussed was derived etc. (Burt, 1972). Just as P•O• is the acid an- during a graduateseminarin...Wollastonite Wol CaSiOa Gugiaite Gug Ca•BeSi•O7 Phenakite Phe Be•SiOt Jahns (1955) and Schneiderh6hn...alone or with helvite, (Mn, Fe, Zn)a(BeSiO4)3Sor phenakite in desilicated, Al-poor, skarn-like environments...minerals such as quartz or topaz in fluorite and phenakite-bearing cavities in pegmatites. Other slightly |  | | Journal (article/letter/editorial) | | On the Occurrence of Phenakite and Scheelite at Wheal Cock, St. Just, Cornwall." The author found good...(undoubtedly phenakite) described by Sowerby in 1804 as argilla electrica or white tourmaline; phenakite was not...OOBEBSPONDENOE. THE TERTIARY GEOLOGY OF DEVON AND CORNWALL. SIR,—Referring to your reviewer's remarks in...relative to " The Tertiary Geology of Devon and Cornwall", may I be allowed a few lines to meet the objections |  | | Journal (issue) | | Trewellard, Penzance, Cornwall. TR19 7SU Tel: (0736) 788305 Wulfenite (Mexico) UK Journal of Mines and...COVER Barite. Parksidc Mine, West Cumberland. England. Crystals to %mm Ralph Sutcliffe Collection Photograph...investment could be found so the site was abandoned, just as the workings began to reveal signs of gold bearing...Trimouns Quarry. ROCK BOTTOM, ISSUE No. 5, SUMMER 1988 St. BartMlemy TAAA~ON s.Ari~ ~~o -Et'"""' ' ANOOAAA...north west of St. Just extending along the northern part of the Nancherrow valley in Cornwall, South West |  | | Catalog/List | | Minerals Endslelgh, 50 Daniell Road, Truro, Cornwall, TA1 2DA, England Tel: (0872)223227 NEWS AND INFORMATION...IIPATITE, Heg!Jlggar Rocks, Tremearne, Breage, Cornwall. superb ge::Hny transparent pale blue crystal...clove brovn coloured sharp matr !x,60x55. [4 St Just, Cornwall. edged crystals (20x20) set In 45 IIZURITE...BAYLDONITE,Penberthy croft, St Hllary, cornvall. "ow appearlng as an actlcle In the UK Journal of Hlnes and...El2 51 BOTALLACKITE,Cllffe Stope, Levant alne, St Just, A r~cent find of small brlght light bluc crystals |  | | Journal (issue) | | INDEX UK JOURNAL OF MINES AND MINERALS ISSUES 11 - 20 (1992 - 2000) Michael Wolfe David Green, Julie...Julie Ballard and Richard Bell 2002 UK Journal of Mines and Minerals - index to issues 11 to 20 -1- CONTENTS... our second index, covers issues 11 to 20 of the UK Journal of Mines and Minerals, published between...index is freely available as an RTF download from the UK Journal of Mines and Minerals website. NOTES, issue...ISSN 0952-2409 UK Journal of Mines and Minerals - index to issues 11 to 20 -2- AUTHORS UK Journal of Mines |  | | Catalog/List | | WICK CARRUTH Copse Cottage Drakewalls Gunnislake Cornwall PL18 9EG Tel/Fax: Tavistock (01822) 822530 *...50x50x20mm. £40. 6. CASSITERITE. Polberro Mine, St Agnes, Cornwall. 7An intergrown ‘ ' group of lustrous jet...£45. 7. CASSITERITE. Dolcoath Mine, Camborne, Cornwall. Chlorite matrix showing several sharp black "sparable'...CASSITERITE AND TOURMALINE. Egloshellan Mine, St Austell, Cornwall. Rich veinstone showing sharp sparkling...50x30x30mm. £75. 10. CHALCOCITE. Levant Mine, St Just, Cornwall. A nice rich group of platey hexagonal xls |  | | Journal (issue) | | ultraviolet technology. Contact: ntroducto offer st £29! +'l TIie - compre11e1,.1,,. celalogue of Laplda...reassemble the spring ring by reversing the procedure just described. Of course there are some companies who...pointing wears away. If it isn't too badly worn, just put a steel block under this shoulder and tap it...little thinner, but harder. The catch will work just as if it were new. If this shoulder is too badly...the inside of th,· tongue. thJust rub the inside surfaces of the tongue with red |  | | Journal (article/letter/editorial) | | 997 TOPOGRAPHICAL I N D E X Penberthy Croft, St. Hilary: carminite, EUROPE Iceland (fsland) Bondolfur...Iceland: beudantite, 431 Pengenna (Trewethen) mine, St. Kew: pitchsbone, oligoclase, 587 Sellatur, East...danalite, 921 Roscommon Cliff, St. Just-in-Peuwith: stokesite, 433 St. Day: cornubite, 1 Treburland mine...Altarnun: genthelvite, molybdenite, 921 Treore mine, St. Teath: beudantite, carminite, jamesonite, mimetite...921 Wheal Cock, St. Just-in- Penwith : apatite, bertrandite, herderite, helvine, phenakite, scheelite, 921 |  | | Journal (article/letter/editorial) | | it from about the age of seven. The minerals of Cornwall and Devon seem to have attracted him greatly even...J. H. Collins's 'Handbook to the Mineralogy of Cornwall and Devon'. When nearly eight years old, Russell...working mine, at Wheal Providence, Lelant, near St. Ires, Cornwall, and many years later he mentioned in a letter...allow him to go underground in Botallack mine, St. Just, about the same time, but he went down some three...of the Southern Railway). He remained there until just before the First World War, ending up, as he himself |  | | Catalog/List | | NEW MINERALS 1077 ■■ ALLOPHANE Hawkswood .Mine, Cornwall Greenish , good coating on matrix, green FLUORESENCE...capsule .J £5 207 ■■ KESTERITE Cligga Mine Cornwall Metallic mass in matrix, quite rich Ix! £4 lx2...from 2mm to 8mm. larger ones with slight damage, St Calixto Prospect Bolivia £12 15. RUTILE IN QUARTZ...brown prismatic crystals, tapering to a · point,just about solid mimetite .. crystal size about 5mm ---...lxl .5 Landsverk quarry, Evje Norway £7.50 23. PHENAKITE clear crystal about I cm size , about half of |  | | Journal (article/letter/editorial) | | first discovered in the British Isles (14 from Cornwall; 2 from Somerset; 1 from Cheshire; 2 from Scotland;...H. G. M A C P H E R S O N from England (75 of which are from Cornwall); 28 from Ireland; and 10 from...Thus, of the 130 species, 64 are from England (48 from Cornwall); 35 from Scotland; 19 from Ireland; and...regional lists as, for example, for SW England, Pennines and northern England, Wales, Ireland, Scotland, etc...enquiries. The late R. W. Barstow, mineral dealer in Cornwall, was most helpful in some matters. REFERENCES |  | | Catalog/List | | _j Byways, 2o·Burstead Close, Cobham, Surrey, England KT112NL EMAIL Phone 01932 862340 richard.tayler@minerals...Praborna Mine, St Marcel ,Piedmont, Italy 849 ■ OPAL Carlaze Pit St Austell Cornwall Dark grey massive...£5 Pb Fe OH. AsO/4 -------------- - 346 ■■ PHENAKITE Mogok,Burma Choice water - clear single terminated...HE°ffLANDirE.. Haz.ard Section,Botallack Mine, St Just,Comwa1137s · ■ •i°SENEGAi:iTE·--··--Ko·~;ondicko...··-···--·-· -·-- - - -·--· 865 ■ KAOLINITE Bugle, Cornwall 278 ■■ TINAKSITE Charo River, Aidan massif Yakutin |  | | Catalog/List | | main list of minerals that year. 1 to select the Just giv~ me No 53 is an educational remains current...with your arder. On the ether to that total. So just number • hand you can send a cheque fixed...Number C311 ALBITE excellent coveraqe (Tintagel, Cornwall) lx2 of creamy f.1.50 coloured 2x2 f.3 crystals...with Arsenopyrite (Bedford Consols Mine, Devon England) The size varies from lxl to lx2 ins. Pieces with...Chalcopyrite. (16 level, Sim.ms Lade, Geevor Mine ,Cornwall) size reflects the area of botryoidal surface |  | | Catalog/List | | 11 Byways, 20 Burstead Close, Cobham, Surrey, England KT112NL ! · ··- - -------- · --- --------------...grey massive with quartz Ix! £4 lx2£6 Praboma Mine, St Marcel ,Piedmont, Italy MnOSiO N'chwaning Mine,...850 ■ HEULANDITE Hazard Section,Botallack Mine, St Just,Comwall Good coverage of colourless micro crystals...section about 7mm Al B0/4F £5 865 ■ KAOLINITE Bugle, Cornwall Very pure white mass, from processing plant Ix½"...Carlaze Pit St Austell Cornwall Rich, jelly-like white to pale yellowish on matrix lx2£7 ■ PHENAKITE Mogok |  | | Journal (article/letter/editorial) | | Discordant calc-silicate bodies from the St. Just aureole, Cornwall D. H. M. ALDERTON Department of Geology...Geology, The University, Keele, Staffs. ST5 5BG, England AND N. J. JACKSON Institute of Applied Geology,...are described from the St. Just part of the Land's End granite aureole, Cornwall. It is suggested that...development is discussed. Geological setting The St. Just portion of the Land's End metamorphic aureole...axinite, and tourmaline are common throughout the St. Just part of the aureole and have also been described |  | | 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...never the less be only just to mention Purser's 'Minerals and locations in S.W. England' (1974). The work |  | | Book | | and gemstones are traced by their geographical England and Wales, Scotland and Ireland occurrence. detail...AND PORTENTS 7 ROUND THE BRITISH ISLES PART I, ENGLAND AND WALES ROUND THE BRITISH ISLES PART 2, SCOTLAND...vaguely termed ‘a commercial scale’; St. Michael’s Mount in Cornwall is out of bounds to all gem-hunters;... which is worth sparing a thought for. What has just been described is known in geology as regional metamorphism;...tourmaline, and often contains chain-cavities, known in Cornwall as vuggs or vughs, where fine crystals may develop |  | | Journal (issue) | | J. Dunn Washington, DC Peter G. Embrey London, England Richard C. Erd U.S. Geological Survey Menlo Park...15 cm, from the Herodsfoot mine, Liskeard, Cornwall, England. Collection of the Natural History M useum...See the article in this issue on the minerals of Cornwall. Copyright 1993 © by the Mineraiogicai Record...of your hand for singlehanded operation, weighs just over a pound, and runs on six AA batteries. The...Pendeen West Cornwall, England Forcenturies, the copper and tin mines in Cornwall County, England, have proved |  | | Journal (article/letter/editorial) | | south shaft at South Terras mine, St. Stephen-in-Brannell, Cornwall. R. J. Davis, M. H. Hey, and A. W...specimens in the BM(NH), at Wheal Alfred, Phillack, Cornwall. The variety agardite-(Nd), according to F. Permingeat...near the roof of the Tregonning granite, Rinsey, Cornwall. C. S. Exley and M. Stone (x964), in 'Present...some aspects of the geology of Cornwall and Devon' (Roy. geol. Soe. Cornwall), pp. I44-5, Anglesite (var...anglesite in uraniferous hydrocarbon at Wheal Speed, Cornwall, contain co-precipitated radium. Other localities |
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Wheal Edward, Botallack, St Just, Cornwall, England, UK