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Birnessite from
Penberthy Croft Mine, St Hilary, Cornwall, England, UK


Locality type:Mine
Classification
Species:Birnessite
Formula:(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Comments:According to Betterton (1989) "Birnessite has been identified by X-ray diffraction methods at the British Museum (Natural History),(X-ray number 6713F) on specimens submitted in 1987 from the Penberthy Croft Mine, St Hilary, Cornwall [SW 558 324]. The mineral occurs here in weathered blocks of partially-cemented slate-rich veinstone below the surface of an old dump. It forms black glossy coatings up to 2 mm thick on massive quartz, botryoidal woodwardite (6712F), earthy goethite, and dolomite with brochantite crystals (6711F), connellite (7407F), wroewolfeite (6710F), and chalcopyrite."
Confirmation
Validity:Confirmed
Confirmation Methods:XRD
Associated Minerals Based on Photo Data:
Connellite1 photo of Birnessite associated with Connellite at this locality.
Data
Mineral Data:Click here to view Birnessite data
Locality Data:Click here to view Penberthy Croft Mine, St Hilary, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:2004
Long-form Identifier:1:3:2004:6
GUID (UUID V4):d55c85e2-9b8f-43d8-838e-380013b427b8
Nearest other occurrences of Birnessite
82.8km (51.4 miles) Treburland Manganese deposits, Altarnun, Cornwall, England, UK
93.9km (58.3 miles) Greystone Quarry, Lezant, Cornwall, England, UK
References
Reference Search (possible matching items)
Journal (issue)
Very Aesthetic+ Very Rare ... Fabre Minerals THE UK of JOU mines minerals CONTE numbe11 TS 2~...FAMOUS MINERAL LOCALITIES: PENBERTHY CROFT MINE, ST. HILARY, CORNWALL, ENGLAND Jolin Betterto11 lllit/...TlSEMENTS SPECIAL ISSUE A sp,·ri.11l·ditio11 of thl' UK Jou nu I of Mim:s & Minl'r,1ls 'JYPESF.'I 11 , A...till' mi1tl'r:Jl~of Pl·nb.:rchy C.rnfr. UK JournJI of Mine, & Mim·r.1!, N,~ 20 -1- GUEST EDITORIAL...whittling-away of the old minesites throughout the UK: foremost in the list of threats arc the use of sites
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...of Penberthy Croft Mine Published by Rock Bottom Publications Ltd. Nottingham ISSN 0952-2409 UK Journal
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...mention Purser's 'Minerals and locations in S.W. England' (1974). The work was never published, although
Report (issue)
(Na, Ca, K)0.6(Mn4+, Mn3+)2O4·1.5H2O Birnessite Crystal Data: Monoclinic, pseudohexagonal. Point Group:...the Treburland mine, Altarnun, and the Penberthy Croft mine, St. Hilary, Cornwall, England. On Groote Eylandt...Mount Lofty Ranges, South Australia. At the Ioi mine, Ritta, Shiga Prefecture, Japan. In the USA, at...Cliff, Custer Co., Colorado; and elsewhere. From Mont St. Hilaire, Quebec, Canada. Sea floor and sea mount...References: (1) Jones, L.H.P. and A.A. Milne (1956) Birnessite, a new manganese oxide mineral from Aberdeenshire
Journal (issue)
UK JOURNAL M I N OF E S -----&----- M ·1 N E R A L S ISSUE N0.9 • SPRING - SUMMER 1991...EDITORIAL COVER PHOTO: Bayldonite. Penberthy Croft mine, St. Hilary, Cornwall. Globular aggregates to 0.5mm...collection. Photo: Mick Cooper. 3 CALCITE 4 The UK Joumol of Mi11es011dMinerals publishes articles of-interest...BAYLDONITE FROM PENBERTHY CROFT G. Simon Camm· Michael Merry ------- 16 ------THE VAN MINE S.J.S. Hughes... EDITORIAL LOOKING BACK In the course of its evolution the UK Joumol of Mints and Minerals has seen many small
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
Journal (issue)
copper mineral assemblages at Botaliack, St Just. Cornwall R.J. Bowell 45 The composition of stolzite...Millward 64 Cuprosklodowskite from Geevor mine, Cornwall N.J. Elton, J.J. Hooper and L. Coggon 66 ...COPPER MINERAL ASSEMBLAGES AT BOTALLACK, ST JUST, CORNWALL R.l. BOWELL Department of Mineralogy, The...sulpha tes in an underground level of Botallack mine. Krohnkite is present and this is believed to be...assemblages observed in material from the mine tailings around Bota llack mine and Wheal Cock. The supergene mineral
Journal (issue)
LevantSectionof GeevorMine,Cornwall. Crystalsto 15 mm. EDITORIAL Digital Micro-Photography The UK Joumal ef Mi11esa11dMi11erals...J. Briscoe Tony Stubbins 9 GREYSTONE QUARRY, CORNWALL CIRCULATION, SALES & FINANCE Jean C. Spence Nick...imaees in the article on fluorite from the Rogerley Mine, Weardale, in the last edition of this journal....from northern England arc also problematic, the famous blue fluorite from Florence Mine in west Cumbria...the specimen). or ditc and pharmacosiderite from Cornwall almost neYer photograph properly, perhaps due
Journal (volume)
u.K. N.J. Elton, St Austell, U.K. A.D. Hart NHM, London, UK RA. Howie, Matlock, UK RJ. King, Tewkesbury... Parkville, Australia M.T. Price, OUMNH, Oxford, UK RE. Starkey, Bromsgrove, U. K. RF. Symes, Sidmouth...lnce, 78 Leconfield Road, Loughborough, LE11 3SQ UK). Back numbers of the Journal may also be ordered...characteristic trigonal sym metry, from Red Gill Mine, Caldbeck Fells, Cumbria, described by Bridges et...botryoidall;>aryte, from Durnford Quarry, near Bristol, England. Chris Finch collection; David Green photograph
Journal (issue)
situ on the 300 foot leve l, C1igga H ead Min e, Cornwall , in 1980. Roy Starkey photo and specimen . JOURNAL...variety, from the Britannia Mine , North Wales, and from the Botallack Mine, Cornwall A.M. Pollard, R.G. Thomas...Williams, R.E. Bevins and S. Turgoose 23 The Wesley Mine; a further occurrence of manganese oxide-hosted...Alabaster 29 1 5 11 15 NOTES Birnessite from Penberthy Croft Mine , Cornwall- a second English occurrence...silver from Red Gill Mine, Caldbeck Fells, Cumbria M. Wirth Rosasite from West Pasture Mine, Weardale , Co
Journal (issue)
Kevin Jolms, Burma House, Bentley Road, Forncett St Peter, Norwich, Norfolk NR16 lLH, U.K. EDITORIAL...Manchester, U.K. T.F. Bridges, Ovington, u.K. N.J. Elton, St Austell, U.K. N.J. Fortey, Keyworth, U.K. R.A. Howie...Limestone at Raisby, Cox hoe, County Durham , England 75 B. YounR Wavellite and variscite on Gower...Ramsbeckite with schulenbergite from Cornwall and Cumbria, England D.J. Green. J Betterton, R. Bell and...Brixham, Devon, England R.S W Braithwaite and JI. Wilson 87 Rosiaite from Bwlch mine, Deganwy, Conwy
Book
PO Box 315. Harpenden. Hertfordshire AL5 2ZD. England Telephone: +44 (0)1582 762413 Fax: +44 (0)870 055...the production of e0pper. the mining areas of Cornwall and Devon became important producers of b th tin... I made it a stipulation that e:ich en~ in rn:, ·st ,, ,u.d be fully referenced. After eight years the...Oxford University Museum of Natural History; Royal Cornwall Museum, Truro; Sedgwick Museum, University of...1\llaga::i11e, on minerals from localities in Cornwall. Devon. Cumbria and Yorkshire. He was renowned
Journal (volume)
and Andy Hopkirk 86 90 Linarite from Cononley Mine, Skipton, North Yorkshire John Chapman and David... 112 120 BOOK REVIEW ‘‘Gold Occurrences in the UK’’ Norman Moles Journal of the Russell Society, volume...The current ‘History of Mineral Collections’ in the UK is not even a ‘History of Kings and Queens’. A small...localities such as Tynagh Mine in Co. Galway and Pendarves Mine in Cornwall (Figs 1 and 2) serves as a...largest remaining mineral galleries in northern England. Strontianite was discovered by chance while volunteers
Journal (issue)
r11u Masein Mathon Medel Lucmagn Ohersasen Rongellen St . Martin Sarn Scharans Safien Sils Domleschg Soms...Hamroer bis 1 kg erlaubt . Permis s o p t barres 3 mine de 60 cm, burin s de 40 cm et mal te :urx de 1 k...:scindekanzlei 7431 Ronccllcr , Gemeindekanzlei 7131 St . Marti n Gemeindekanzlei 7431 Sar n Gemeindekanzlei...Norrishiïe, a new manganese mica from th e Hoskins Mine, NS-Wales, Australi a 1368-1373 Chayesite, a new...1374-1376 Wiserite, an occurrence at the Koorbat Mine in Namibia . 1377-1381 Mawbyite, a new arsenateof
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...feldspar from the famous locality of Wheal Coates in Cornwall, which I subsequently accessioned under my catalogue...other fluorites; Wheal Wrey calcites, the north Cornwall sulpho-salts including endellionite (the name...I tramped the streets of London in the region of St. Pancras looking for accommodation. It was either
Journal (issue)
Cardiff, UK KS.W Braithwaite, Manchester, C.K. I.F. Bridge:>, Ovington, U.K. N.J . Elton, St Austell,...Society, named after the eminent amateur mineralogi st Sir Arthur Russell (1878-1964), is a society of amateur...chalcutrichite, from Fowey Consols mine (Lanescot section). Tywardreath. Cornwall. Field of view 13 mm x 9 nun...phosphates from Gunheath china clay pit, St Austell, Cornwall, England 3 15 N.l. Elton Sector phosphorescent...(selenite) crystals from Mepal Bridge, Cambridgeshire, England B.A. Grguric 19 The silver and cobalt mineralisation
Book (edition)
Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43...included in text, except in the cases of the USA, UK, and the provinces Ontario and Quebec in Canada,...Is. (island), Vole. (volcano), Penin. (peninsula), St. (Saint), Ste. (Sainte). Recent developments in many...administrative divisions inside those countries, e.g in Spain, UK, Russia, some African countries, etc. Several repeated...tint. R = 35 %. VHN = 26-61. Rare at etc. at Mont St-Hilaire. Quebec. CM 32. 843-854, Georgetown, Clear
Book (edition)
Typesetting Services Ltd, Wallington, Surrey, England. Contents Preface Historical Perspective Acknowledgments...compelation of the American Geological Institute, 4220 King St., Alexandria, VA, 22302-1502. However, without the...of Earth Sciences, Cambridge Univ., Cambridge, England. Sharon Cisneros: Minerological Research Co., San...of Mineralogy, Natural History Museum, London, England. Rock H. Currier: Jewel Tunnel Imports, Baldwin...Minerals, Monograph 4, Mineralogical Society (England), 1974 J. W. Salisbury, L. S. Walter, N. Vergo
Book (edition)
Morocco; (center, left) wulfenite, San Francisco mine, Sonora, Mexico; (center) ameihyst, Veracruz, Mexico;...rnodochrosite, N’Chwaning mine, South Africa; (lower left, center) wulfenite, Red Cloud mine, Arizona; (lower...Chapman & Hall 2-6 Boundary Row London SE! 8HN, England Thomas Nelson Australia 102 Dodds Street South...relvvagigld .xteliliey? santa rowan leks ) Get « ryi St pewory sine toting bee eoetiine wll deatial wl bxyolovab...Lowell Joe Pfeifer Joel Yancy Julius Zweibel Kent England Lawrence Conklin Laszlo Horvath Luiz Menezes Les
Book (edition)
Morocco; (center, left) wulfen ite San Francisco mine, Sonora, Mexico; (center) amethyst, Veracruz, Mexico;...Mountains, Utah; (lower le ft) rhodochrosite, N'Chwaning mine, Sou th A frica; {lower left, center) wulfenite...Chapman & Hall 2-6 Boundary Row London SEI 8HN, England Thomas Nelson Australia 102 Dodds Street South...Pfeifer JY Joel Yancy JZ Julius Z weibel KE Kent England LC Lawrence Conklin LH Laszlo Horvath LM Luiz Menezes...Henry and K. Lonsdale, Kynoch Press (Birmingham, England), three volumes, 1952-1963. Crystallography and
 
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