| | Journal (article/letter/editorial) | 8 0 , VOL. 43, PP. 583 .6 The occurrence of cebollite in kimberlite and included zeolitized crustal...Grahamstown, 6t4o, South Africa SUMMARY. TWO different parageneses for cebollite, a rare hydrated calcium...differing from all previously reported occurrences. Cebollite forms concomitantly with natrolite from plagioclase...lime and having a low partial pressure of CO2. CEBOLLITE is a very rare hydrous calcium aluminium silicate..., Colorado. Further work on the formation of cebollite and other minerals due to hydrothermal processes | | | Report (issue) | Cebollite Ca5 Al2 Si3 O12 (OH)4 c 2001 ° Mineral Data Publishing, version 1.2 Crystal Data: Orthorhombic...a late-stage primary igneous mineral (Kimberley, South Africa). Association: Melilite, natrolite, calcite...From the De Beers diamond mine, Kimberley, Cape Province, South Africa. In the Tokatoka district, about...References: (1) Larsen, E.S. and W.T. Schaller (1914) Cebollite, a new mineral. Wash. Acad. Sci. IV, No. 16, 480{482...343{356. (3) Kruger, F.J. (1980) The occurrence of cebollite in kimberlite and included zeolitized crustal | | HANSON, E.K., MOORE, J.M., BORDY, E.M., MARSH, J.S., HOWARTH, G., ROBEY, J.V.A. (2009) CRETACEOUS EROSION IN CENTRAL SOUTH AFRICA: EVIDENCE FROM UPPER-CRUSTAL XENOLITHS IN KIMBERLITE DIATREMES. South African Journal of Geology, 112 (2) 125-140 doi:10.2113/gssajg.112.2.125 | Journal (article/letter/editorial) | A. ROBEY 125 CRETACEOUS EROSION IN CENTRAL SOUTH AFRICA: EVIDENCE FROM UPPER-CRUSTAL XENOLITHS IN KIMBERLITE...Rhodes University, P.O. Box 94, Grahamstown, South Africa email: emilykhanson@gmail.com; j.moore@ru.ac...ac.za J.V.A. ROBEY De Beers Group Services, P.O. Box 47, Kimberley, South Africa email: jock.robey@debeersgroup...robey@debeersgroup.com © 2009 June Geological Society of South Africa ABSTRACT Twelve Group II and fourteen Group...Group I kimberlite diatremes in central South Africa were examined for upper crustal xenoliths in order to | | | Journal (article/letter/editorial) | Letseng-La-Terae kimberlite in Lesotho and the De Beers mine in Kimberley. I concluded the mineral was ceboilite...M M U N I C A T I O N S chemistry to that of cebollite [CaaAI2SiaO12(OH)]. The composition given in Table...12-238). The fit is in fact better than provided by cebollite (JCPDS card no. 16-695) as the intensities correspond...pectolite composition, NaCa2SiaOs(OH). 3. Ideal cebollite composition, Ca,AI2SiaOI2(OH)2. Pectolite is a...Acknowledgements. I am grateful to Mr E. M. W. Skinner of the De Beers Corporation for bringing to my attention an internal | | | Journal (article/letter/editorial) | Mines 2025, South Africa AND E. MICHAEL SKINNER AND C, ROGER CLEMENT Geology Department, De Beers Consolidated...Consolidated Mines Ltd., PO Box 47, Kimberley 8300, South Africa ABSTRACT. Pectolite has been identified,...from the De Beers and Dutoitspan Mines, Kimberley, South Africa and the Letseng-La-Terai Mine, Lesotho...from the De Beers and Dutoitspan Mines, Kimberley, South Africa and the LetsengLa-Terai Mine, Lesotho...provided by the Geology Department De Beers Consolidated Mines Ltd., Kimberley. In addition to the localities | | | Journal (article/letter/editorial) | Sweden (Sverige) Gladhammar mine, nickel-rich carrollite, 737 Harstig mine, Pajsberg, sarkinite, 681 Norr6...Norr6, arrojadite (hiihnerkobelite), 23o Sjo mine, Grythytte Parish, Orebro, xantharsenite, polyarsenite...Cornwall, luxullianite, 441; 442 Scar Crag, Lake District, arsenopyrite, alloclase, glaucodot, cobaltian...Court farm, Ramsgate, Kent, chalk, i6o Tynebottom mine, Garrigill, Cumbria, arsenical marcasite, gersdorffite...kidwellite, 952 WALES(Cymrul Dyfed, illite, 857 Parc mine, Gwynedd, hydrozincite, nickeloan hydrozincite, | | | Book | Project of Energy, Mines, and Resources, Canada; and De Beers Consolidated Mines are acknowledged for financial............................... 126 5.3.3.2. West Africa ........................................... 126...11. 6.12. 6.13. 6.14. 6.15. 6.6.3 .1. Diverse South African Kimberlites (Dawson and Smith 1975, Smith.......................... 437 KIMBERLITES Ex Africa semper aliquid novi. Pliny The Elder, Natural...confluence of the Vaal, Orange, and Riet Rivers of South Africa in 1866-1867. The ebb and flow of prospecting | | | Book | Mots inc. Native Gold on Quartz, Paymaster mine, South Porcupine, Ontario / Photo by Brian Boyle. Courtesy...Marquis imprimeur inc. Barite on Quartz, Rock Candy mine, Grand Forks, British Columbia / Photo by Ken Mayer...Mayer Publisher Pyromorphite, Society Girl mine, Moyie, British Columbia / Photo by Ken Mayer Mineralogical... Ontario Canada Diopside on Grossular, Jeffrey mine, Asbestos, Quebec / Photo by Jeffrey A. Scovil...Pyramidal crystallographic concepts introduced by Romé de I’Isle garnet (vesuvianite), Dodecahedral garnet | | | Book (edition) | International Symposium on Carbonatites in Pocos de Caldas, Brazil for which this writer was keynote... Venezuela, Brazil, Paraguay, Angola and South-West Africa, i.a. Carbonatites are now the major sources...Canada Brazil Greenland, Europe, and the U.S.S.R. Africa India APPENDICES REFERENCES LOCALITY INDEX SUBJECT...Society of South Africa and C. A. Strauss and F. C. Truter (1950A) : Geological Society of South Africa and...Society of South Africa and R. L. Johnson (1961) 6-12: Geological Society of South Africa and R. L. Johnson | | | Book | CALCUTTA MADRAS KARACHI IBADAN NAIROBI DAR ES SALAAM CAPE TOWN Published in the USA by Oxford University...composition 5Mg0.3Si02.3^-4H20, from Mt. Tkhach, northern Caucasus. This is perhaps the ‘new variety of...Al)16O34(Cl,SO4,CO3)4.0-6H2O, from a lapis-lazuli mine, Sar-e-Sang, Badakshan province, Afghanistan. The...crystals from Kimberley, South Africa. Named after Mr. Alpheus Fuller Williams, of Kimberley, by whom the...Greenish-blue hexagonal crystals from the Bou-Skour copper mine, Jebel Sarhro,* Ouazazate,* Morocco, have the composition | | | Book | G. W. FRANZ, Southeast Missouri State College, Cape Birardeau, Missouri, U.S.A. I. G. GASS, University...Upton: M. J. O'Hara and K. G. Cox. K. D. Watson: J. de Grosse, Mrs. O. L. Kurtz, D. L. Watson, L. S. Weymouth... J. WYLLiE 135 Serpentinites of the Roxbury district, Vermont By RicHarp H. JAHNs III. A. Introduction...peridotite minerals Conclusions xiv Contents V. Local deformation structures in a serpentinite Davw P...Introduction Nomenclature The Swedish kimberlites Swedish, South African and Russian kimberlites Discussion Conclusion | | | Report (issue) | (1979). Probe analyses (1) from Broken Hill gold mine, Coromandel , New Zealand. ACANTHITE. Nikolaeva...(1979). Probe analyses (4) from Broken Hill gold mine, Coromandel, New Zealand. AGUILARITE. Sugaki et...6528 (1983). Probe analysis, x-ray data from Sanru mine, Hokkaido, Japan. AGUILARITE. Sugaki et al., J....65-77 (1982). Microprobe analyses (5) from Sanru mine, Hokkaido. AGUILARITE. Vassalo Morales and Borodaev...Aufschluss 33, 367-373 (1982). Occurrence at Clara mine Black Forest. X-ray data, a 10.46, c 3.02A. AKERMANITE | | | Book (edition) | Aus1rnlia. Thomas Nelson Aus1r.1lia. 102 Dodds S1rce1. South Mdbournc. Vic1oria 3205. Auslr.ilia Chapman & Hall...9 (for 1 952). p. 99. From (TL) Crackers Well. South Australia. Australia. Deposit located by air-borne...1 892) Syst. Mi11., 6th ed .. p. 50. A term of South American origin describing galena in granular form...44. c 1 3 .50 A. A natural occurrence at a coal mine in the (TL) Lvov-Volynsk basin, USSR. Achates. syn...(Doklady) Acad. Sci. URSS, 22, 433. (TL) Mt Tkhach. northern Caucasus. USSR. Adinole. syn. of albite. F.S. | | | Book | Acta Geologica Hispanica, 1966-, Instituto Nacional de Geologia, Avenida Jose Antonia 585, Barcelona, ™...Geologico y Minero. Instituto Geologica y Minero de Espaiia, Rios Rosas, 23, Madrid, 3, Spain. British...Road, London SW7, UK. de Mineralogie (Societe francais de Miner- alogie et de Cristallographie), 1878-...Cuadernos Geologia 1970-, Universidad de Granada, Secretariado de Publicaciones, Granada, Spain. Current...Geological Society of South Africa, Transactions, 1896-, Marshalltown, Transvaal, South Africa. Geological Survey | | | Book (edition) | proprietary bituminous or asphalt composition. Aceito de Abeto. A turpentine of sharp acrid flavour, from...An alkaline decoction made from the juice of a South American Tree called Achete or Coasso. It is used...4 0(CH 3 ) ). Acnil. resorcinol, H H H H local anaesthetic. Aconite Liniment. See A. B.C. Liniment...synonymous with Axinite. Afwillite. A mineral of Kimberley. It is a hydrated calcium silicate and approximates...down of the kapok from Asclepias species of South A mineral. (Alabandite). manganese sulphide MnS |
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