 | | Report (issue) | | Ettringite Ca6 Al2 (SO4 )3 (OH)12 • 26H2 O c 2001-2005 Mineral Data Publishing, version 1 Crystal Data:...00 • (1) Scawt Hill, Ireland. (2) Ca6 Al2 (SO4 )3 (OH)12 26H2 O. Mineral Group: Ettringite group. Occurrence:...Association: Portlandite, afwillite, hydrocalumite (Scawt Hill, Ireland); afwillite, hydrocalumite, mayenite, gypsum... Puy-de-Dôme, France. From Scawt Hill, near Larne, Co. Antrim, Ireland. In the Hatrurim Formation, Israel...Crestmore quarry, Riverside Co., California; in the Lucky Cuss mine, Tombstone, Cochise Co., Arizona. Name: For |  | | Journal (article/letter/editorial) | | 324 Ettringite from Scawt Hill, Co. Antrim. By F. A. BANNISTER, M.A. Assistant-Keeper in the Mineral...recorded ettringite from the contact-zone of Chalk and Tertiary dolerite at Scawt Hill, near Larne, Co. Antrim...material was isolated to effect a comparison with ettringite from the Laaeher See, and to carry out chemical...addition to the fresh cleavage fragments4 of ettringite from Scawt Hill handed to Mr. Hey for chemical analysis...data. This, the largest crystal of ettringite yet found at Scawt Hill, measures 1 j. Lehmann, Neues Jahrb |  | | Report (issue) | | larnite-spurrite contact metamorphic rocks (Scawt Hill, Ireland); in fumaroles (Vesuvius, Italy); as a precipitate...Association: Afwillite, calcite, larnite, spurrite (Scawt Hill, Ireland); calcite, halite (Jebel Awq, Oman); calcite...mayenite, ettringite (Eifel district, Germany). Distribution: From Scawt Hill, Larne, Co. Antrim, Ireland...the Maqarin area, north Jordan. From Jebel Awq, Northern Oman Mountains, Oman. Large crystals and masses |  | | Report (issue) | | c = 16.271–16.292 X-ray Powder Pattern: Scawt Hill, Ireland. 7.92 (vvs), 3.99 (vs), 2.87 (s), 2.46 (s)...8 34.1 1.0 Total 98.4 100.6 99.3 (1–2) Scawt Hill, Ireland. (3) Boisséjour, France; corresponding to...portlandite, ettringite, larnite, plombièrite, hydrogrossular, calcite. Distribution: At Scawt Hill, near...near Larne, Co. Antrim, Ireland. From Boisséjour, near Ceyrat, Puy-de-Dôme, France. At Campomorto, Montalto |  | | Journal (article/letter/editorial) | | SOCIETY OF AMERICA NOVEMBER_DECEMBER, 1960 ETTRINGITE FROM FRANKLIN, Nos. 11 and 12 NEW JERSEY*...BAuu, The New Jersey Zinc Co., Franhl'in, I{ew Jersey. ABSTRACT Ettringite at Franklin, New Jersey occurs...unit cell. The unit cell dimensions are ao:22.28 A, co:21.29 A giving aratio ao:co:l:0.9556. IwrnooucrroN...of banded ore. to partially clear crystalsof ettringite with the only form a 1owhexagonal dipyramid....by white tufts of thompsonite and crystals of ettringite attached by an edge.Subsequentlyadditional material |  | | Journal (article/letter/editorial) | | Washington, DC 20013 pohwatp@si.edu Ettringite N’Chwaning II Mine, Northern Cape Province Republic of South...various minerals that have natural counterparts; ettringite in fine needles is among the first of these minerals...cement gradually sets, hardens, and cures, the ettringite is gradually transformed into other calcium minerals...which reacts with gypsum and water to produce ettringite with another increase in volume. These reactions...of Portland cement, I was amazed to learn that ettringite, a mineral I have come to associate with aesthetic |  | | Journal (article/letter/editorial) | | 59 Crystal chemistry of ettringite. By DUNCAN McCoNNELL, Ph.D. The Ohio State University, Columbus 10...based on three chemically analysed samples of ettringite and their respective unit-cell dimensions and...atoms, 64 cations with co-ordination number 6 or more, and 48 cations with co-ordination number 4 or...or less. Some substitution of cations with co-ordination number 3 apparently takes place, and any excess...16[A4(XO4)~(H20)12] , where A represents atoms with six-fold co-ordination (Ca, Na, A1) and X represents atoms with |  | | Report (issue) | | thaumasite, merwinite, spurrite, gehlenite, ettringite, portlandite, hillebrandite, foshagite, brucite...Province, South Africa. In Ireland, at Scawt Hill, near Larne, Co. Antrim. From the Schellkopf, near...Ayalon, Israel. In the USA, at Crestmore, Riverside Co., California. In the Mihara mine and at Fuka, near |  | | Journal (article/letter/editorial) | | XXll. The dolerite-chal]c contact of Scawt Hill, Co. Antrim. The production of basic alkali-roclcs... Field Occurrence. Scawt Hill, situated six miles n o r t h of Larne, Co. Antrim, forms a prominent height...edge of the Antrim 'plateau basalt' lavas. The geological structure of this portion of Antrim is comparatively...chalk and older Mesozoic rocks is covered by the Antrim Tertiary basalts, which are divisible into a lower...of bauxitic and pisolitic iron-ore deposits. Scawt Hill itself forms a mass of olivine-dolerite breaking |  | | Journal (article/letter/editorial) | | NOVEMBER-DECEMBER' 1960 CALIFORNIA CRESTMORE, FRO1VI ETTRINGITE ("WOODFORDITE'') oJ Joseen Munoocu aNo RoeBnt...propertieswere found to be very closeto thoseof ettringite (from publisheddescriptions), but r-ray study...the unit cell to have twice the dimension of ettringite in the oo direction. A chemicalanalysis also...perceptibly smaller amount of HzO than calledfor in ettringite.* Further, the indicesof refraction were somewhatlower...crystalsfrom Scawt Hill, and the authors are forced to the conciusionthat "woodfordite" is ettringite. The difference |  | | Journal (article/letter/editorial) | | 1963 ORIENTEDOVERGROWTHS OF' I'HAUMASITEON ETTRINGITE A. B. CenpBxrr,x, Department oJ Geology,Un'iaersity...Missowri, Colwmbia,Missour'i. The occurrenceof ettringite in spurrite-merwinite-gehleniteskarn at the 910...l"tc. 1. Oriented overgrouth of thaumasite on ettringite' The mineral grain is immersed in an oil rvith...o':currencedescribedby Murdoch and Chalmers the ettringite is present as clear colorlesscrystals up to 1...thaumasite are enclosedby a secondgenerationof ettringite. The refractive indicesof the coexistingettringite |  | | Journal (article/letter/editorial) | | VOL. 48, JULY.AUGUST, 1963 THE UNIT CELL OF ETTRINGITE L. G. Brnnv, Queen's Llniaersity, K'ingston,...powder data for a difference was noted in the ettringite, CaoAlz(SOr)e(OH)rr'24HzO, length of the a axis...These authors aiso remeasuredo on crystaisfrom Scawt Hill and Ettringen, concluding that a should be double...doubled value of a for materials from Ettringen and Scawt Hill are based on the same method. I'Iurdoch and Chalmers... Hrv ,rnr J. D. BrnNlr. (1936) Ettringite from Scawt Hill Co. Antrim. Mineral,. Mag. 24, 324-329. Fnrrxncnt |  | | Journal (article/letter/editorial) | | Manual of the Mineralogy of Great Britain and Ireland (1858). These lists were published in the Reports...Somerset; 1 from Cheshire; 2 from Scotland; and 2 from Ireland). Geographical distribution of the minerals: of...England (75 of which are from Cornwall); 28 from Ireland; and 10 from Wales. (The remaining 12 minerals...(48 from Cornwall); 35 from Scotland; 19 from Ireland; and 7 from Wales. The remaining 5 are simply British...example, for SW England, Pennines and northern England, Wales, Ireland, Scotland, etc. When this has been |  | | Journal (article/letter/editorial) | | Communication Whisker Crystals of the Mineral Ettringite G. Macleod and A. J. Hall Department of Geology...20, 1990; accepted August 18, 1990 The mineral ettringite has been encountered growing in spherical cavities...habit is rare and it may be possible that natural ettringite may be encountered with such a habit. It may...may also be possible that other members of the ettringite group and in particular thaumasite may also take...up the whisker like form. Minerals outwith the ettringite series have also been reported as having a whisker |  | | Journal (article/letter/editorial) | | disilicate (ranlcinite), a new mineral from Scawt Hill, Co. Antrim. (With Plate V.) By C. E. TILLEY, B.Sc...melilite, and wollastonite at the locality of Scawt Hill, but hitherto the compound itself has not been...of further material among the larnite-rocks of Scawt Hill has now revealed its presence in several specimens...to be obtained, and account of the mineral at Scawt Hill will therefore be prefaced by a note on the slag...v e l a n d , O h i o , 1928, n o . 11.) At Scawt Hill the disilicate is found in association with the |  | | Journal (article/letter/editorial) | | 419 Portlandite, a new mineral from Scawt Hill, Co. Antrim. By C. E. TILLEu Ph.D., B.Sc. Professor of...recently collected larnite-spurrite-rocks from Scawt Hill the writer observed crystals now shown to be...contact-rocks. In the previous record of afwillite at Scawt Hill2 this mineral was noted as microscopic euhedral...the contact-zone and accompanied by calcite and ettringite. The infillings now referred to consist essentially...a well-defined species in the contact-zone of Scawt Hill merits a new mineral name, and in view of its |  | | Journal (article/letter/editorial) | | (4CaO.AI~O3.12H20), a new mineral from Scawt Hill, Co. Antrim. By C. E. TILLEY, Ph.D., B.Sc. Professor...portlandite 1 amongst the vug minerals of the Scawt Hill contact-zone, attention was drawn to some infillings...contact, 2 consist of afwillite, portlandite, ettringite, and aggregates of a mineral, the light-greenish...... 41.5 18.8 0 - 7 4 0 ... 0 - 1 8 4 ... H20 CO s ... ... 38.5 1.8 2.137 -- 100.6 ... ... II...were thereby raised to ~ 1-549, r 1.533. The Scawt Hill hydrocalumite has clearly somewhat different |  | | Journal (article/letter/editorial) | | chemical composition and crystal-structure of ettringite." By Mr. J. D. Bernal and Mr. F. A. Bannister...of ettringite from Scawt Hill, Co. 334 Reports and Proceedings—Mineralogical Society. Antrim. The |  | | Journal (article/letter/editorial) | | Hrv ,rnr J. D. BrnNlr. (1936) Ettringite from Scawt Hill Co. Antrim. Mineral,. Mag. 24, 324-329. Fnrrxncnt...2298-2305. Hunr.rur, C. S. eNo J L. Ba.ulr (1960) Ettringite from Franklin, New Jersey Am. Mineral. 45,1137-7143...chemistry of ettringite. Mineral. Mag.33, 59-64. Munoocrr, J. .lNn R. A. Crra.r,unns, (1960) Ettringite ("woodfordite")...al. (1959) Aluminum calcium sulfate hydrate (ettringite). Nat. Bur. Standard; Circ. 539,8, 34. Wnrrn...Physi.cs(1955-56),37th ed., ChemicalRubber Publishing Co.' Cleveland,Ohio. Heurrrrurr,r,r, P. lNr A. Pnnnnv |  | | Journal (article/letter/editorial) | | ReronnNcns BaNNrsrnn, F. A. (1936) Ettringite from Scawt Hill, Co. Antrim, Miner. Mog ,24,324 Wooolono, A...Circular 539, 8, 3, 4. Iluntnut, C. S. (1960) Ettringite from Franklin, N. J. This issue, 1137-1143. ...Nemours and co , Inc DMF Product Inlormation Bull , April 1, 1954. 2 Stepan Chemical Co , Technical Bulletin... 39th ed.: Cleveland, Chemical Rubber Publishing Co. NarroNar. Resnencn couNcrl (1928), rnternational...and technology, lst ed., v.3: New york, McGraw-Hill Book Co., Inc. TnauenueNs, M. J. aNn HnNNeur-Rorero |  | | Journal (article/letter/editorial) | | representsolid solutionsbetweensturmaniteand an ettringite compositionallysimilar to that from Franklin...occur naturally. Taylor (1973)notes that if "ettringite is heatedat 110'C most of the molecular water...heating-produced as a ferric iron, boron analogueof ettringite. They note, shrinkage of the unit cell observed...refractiveindicesdeterminedby Hurlbut and Baum for an ettringite from Franklin Furnace,New Jersey-before and after...unheatedFranklin ettringite versus either sturmanite or dehydrated Franklin ettringite. The light curvesassumea |  | | Journal (article/letter/editorial) | | (2002) DTA, TG, AND XRD STUDIES OF STURMANITE AND ETTRINGITE SYTLE M. ANTAO Center for High Pressure Research...(DTA and TG) were carried out on sturmanite and ettringite from the Kalahari Manganese Field, South Africa...polymorphic transition occurs at about 627°C. For ettringite, approximately Ca6Al2(SO4)3(OH)12•26H2O, the...respectively, and the residue melts at about 1176°C. Ettringite melts after the liberation of both H2O(g) and...occurs at a considerably lower temperature in ettringite than in sturmanite. Using powder X-ray diffraction |  | | Catalog/List | | "Metropolis of the Water Cure". Most of the undeveloped hill land is now owned by the Malv • Hills Conservators...HUS=MUSEUM(lOOmm +) l. ACTINOLITE. Downings,North Co Donegal,Ireland.3 specimens.Light grey-green mass of long-bladed...Hendips. 4. ANALCIME.Magheramorne Quarry,Larne,Co Antrim,N Ireland.2 specim -ens.Both with large,open cavity...Tenter 38. BARITE. Saint 39. BARITE.Taff's Hill,Bramham,North Yorks. 6 specimens. All sc. Tiny,water...BAYLDONITE/MIMETITE. Penberthy 44. BERAUNITE/STRUNZITE. Gravel Hill Iren Mine,Penhale,Cornwall. Very rare British species |  | | Journal (article/letter/editorial) | | Analysis: (by R. Blix) PbO 89.33, As2O66.57, CaO 0.46, CO, 0.43, Cl, 4.05, HrO 0 . 1 0 ; s u m 1 0 0 . 9 4...Gnovns: Lusakite, a cobalt-bearing silicate from Northern Rhodesia. Mineral Mog.,vol.23, no. 146,pp. 598-606...598-606, 1934. Nauo: From the locality Lusaka, Northern RhodesiaCneurc.q.r, Couposrrolr: A silicate of...and magnetite, about 80 miles east of Lusaka, Northern Rhodesia. Lusakite forms ftom 5-40/6 (average...(4CaO. AlzOa. l2IJrO), a new mineral from Scawt Hill, Co. Antrim Minerol. Mag, vol. 23, no. 146,pp.607-615 |  | | Journal (article/letter/editorial) | | Hatrurim region and the BeershebaValley in the northern Negev, near Ramleh in the coastalplain and at...more abundantly, ettringite. With the exception of portlandite, thaumasite and ettringite these minerals...crystals which, together with fluorapatite and ettringite, line the walls of the very thin veins in the...is very rare; it has previously been found in Scawt Hill (Tilley, 1933), Vesuvius (I{inguzzi, 1937; Carobbi...and tobermorite. Both the unknown material and ettringite exhibit strongly preferred orientation along |
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