 | | Journal (article/letter/editorial) | | Beryllium minerals in Cornwall and Devon: helvine, genthelvite, and danalite. By ARTHUR W. G. KINGSBURY...occurrences in Cornwall and one in Devon, and of the latter, one occurrence in Cornwall, are described...British danalite has hitherto been represented by two old specimens with the vague locality 'Redruth', Cornwall;...chemical analyses for the helvine, genthelvite, and danalite specimens are presented ; helvine and gentheIvite...sediments and, in one instance, in greenstone ; danalite in hydrothermal deposits or lodes in metamorphosed |  | | Journal (article/letter/editorial) | | Volume 65, pages 355-360, 1980 The stability of danalite, FeoBer(SiOr3S DoNero M. Bunr Department of Geology...pyrrhotite and more oxidizing conditions than fayatte. Danalite tends not to occur with hematite. Thesefacts can...stability of the end member. The diagram showsthat danalite, if it is stable at all, has an extremely narrow...occurs at Iron Mountain, Bartlett, New Hampshire, where zoned danalite-helvite solid solutions occur as...on phenakite with magnetite,pyrite, and quartz. Danalite is the only end memberof the helvite group that |  | | Journal (article/letter/editorial) | | beudantite, carminite, mimetite, scorodite, 432 Redruth: danalite, 921 Roscommon Cliff, St. Just-in-Peuwith:...scorodite, stibnite, 431 Tretoil mine, Lanivet: danalite, garnet, ilvaite, 921 Wheal Betsy, Tremore, Lanivet:...Gwennap: cornubite, 1 Wheal Maudlin, Lanlivery: danalite, 921 Wheal Phoenix, Lin]cinhorne: cornubire, 1...Cavern, Matlock Bath, Derbyshire: rosasite, lxxvi Cornwall Bodm';n Wheal Mary, Lanivet: alaban- dine, bornite...danal- ire, seheelite, 921 New Tolgus shaft, Redruth: axinite, danalite, garnet, 921 Old Treburgett |  | | Journal (issue) | | apatitecrystal from Megilligar Rocks, Breage, Cornwall. Collectedby NickTalbott.Thephotois a combinationof...combinationof nineseparatedigitalimages. The UK Joumal of Mi11esand Minerals publishes articles of interest...Chambers 47 Born< REVlEWS 55 CLASSIFIED ADVERTJSMENTS UK Journal of Mines & Minerals No. 25 -1- EDITORIAL...liroconite which is reasonably easy to obtain from Cornwall (albeit at an ever-increasing cost) but which...to be a genuinely rare mineral. This issue of the UK]oumal efMines and Minerals concentrates on rare minerals |  | | Book | | There have been !)lines in Cornwall for some 3500 years where the intrusion of huge masses of granitic...significant minerals to come out of southwest England. The accompanying captions describe the crystallographic...t). ~ e • ~t~' l lr\ V: 1 'I Minerals of Cornwall and Devon Joseon1ne Community Llbral1es Grants...Embrey. P. G. Minerals of Cornwall and Devon. 1. Mines and mineral resources;--England --Devon 2. Mines and...and n1ineral resources --England--1Cornwall J. Title IL Symes. R. F. 549.9423'5 QE262.D45 ISBN 0-56 5-009 |  | | Book | | PO Box 315. Harpenden. Hertfordshire AL5 2ZD. England Telephone: +44 (0)1582 762413 Fax: +44 (0)870 055...Cataloging-in-Publication Data are aYailable Typeset in Times New Romanand Helvetica Printedand bound by L.E.G.OSpA...House in Derbyshin: ( ooper 2005) and the promise of new mineral galleries in Edinburgh in '.!011. I hope...formal referencing, when I personally discovered new species to Britain and Ireland, and colleagues permitted...the production of e0pper. the mining areas of Cornwall and Devon became important producers of b th tin |
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