Thermal Decomposition of 14 a Tobermorite from Crestmore V
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Tobermorite Supergroup: a New Nomenclature
Mineralogical Magazine, April 2015, Vol. 79(2), pp. 485–495 The tobermorite supergroup: a new nomenclature CRISTIAN BIAGIONI*, STEFANO MERLINO AND ELENA BONACCORSI Dipartimento di Scienze della Terra, Universita` di Pisa, Via Santa Maria 53, 56126 Pisa, Italy [Received 10 July 2014; Accepted 30 September 2014; Associate Editor: S. J. Mills] ABSTRACT The name ‘tobermorites’ includes a number of calcium silicate hydrate (C-S-H) phases differing in their hydration state and sub-cell symmetry. Based on their basal spacing, closely related to the degree of hydration, 14, 11 and 9 A˚ compounds have been described. In this paper a new nomenclature scheme for these mineral species is reported. The tobermorite supergroup is defined. It is formed by the tobermorite group and the unclassified minerals plombie`rite, clinotobermorite and riversideite. Plombie`rite (‘14 A˚ tobermorite’) is redefined as a crystalline mineral having chemical composition Ca5Si6O16(OH)2·7H2O. Its type locality is Crestmore, Riverside County, California, USA. The tobermorite group consists of species having a basal spacing of ~11 A˚ and an orthorhombic sub-cell symmetry. Its general formula is Ca4+x(AlySi6Ày)O15+2xÀy·5H2O. Its endmember compositions correspond to tobermorite Ca5Si6O17·5H2O(x =1andy = 0) and the new species kenotobermorite, Ca4Si6O15(OH)2·5H2O(x =0andy = 0). The type locality of kenotobermorite is the N’Chwaning II mine, Kalahari Manganese Field, South Africa. Within the tobermorite group, tobermorite and kenotobermorite form a complete solid solution. Al-rich samples do not warrant a new name, because Al can only achieve a maximum content of 1/6 of the tetrahedral sites (y = 1). -
The Hydrated Calcium, Silicates Riversideite, Tobermorite, and Plombierite
293 The hydrated calcium, silicates riversideite, tobermorite, and plombierite. By J. D. C. McCoNNELL,M.Sc. 1)epartment of Mineralogy and Petrology, University of Cambridge. [Conmmnicated by Prof. C. E. Tilley, F.R.S., read March 26, 1953] ] NTRODUCTION. N a recent paper Taylor has shown that three distinct hydration I levels exist within the" calcium silicate hydrate (l)' group of artificial preparations (Taylor, 1953a, p. 168). The individual hydrates may be distinguished from the position of the 002 reflection in X-ray powder photographs. The d spacings corresponding to the three hydrates of this group examined during the present investigation are 1~'6, 11"3, and 9"6 ,A.. These hydrates have 1-[20 : SiO 2 molar ratios of approximately 2-0, 1.0, and 0"5 respectively. A recent examination of the minerals crestmoreite and riversideite (Taylor, 1953b) has shown that both these nfinerals are intimate inter- :growths of members of the above hydrate series with the mineral wilkeite. Both the artificial preparations and the crestmoreite-riversideite inter- growths have failed to provide material suitable for detailed optical study. During a mineralogical investigation of rocks from a dolerite-chalk contact at Ballycraigy, Larne, County Antrim, a mineral was examined and subsequently identified, from X-ray powder photographs, with the 11"3 .~. hydrate referred to above. Optical and X-ray studies on single crystals of this mineral were made and subsequently both the 14.6 and 9-6 A. hydrates were prepared from this material experimentally. X-ray powder photographs of a gelatinous material collected at Ballycraigy showed that this m~tteria] could also be identified with the 'calcium silicate hydrate (f)' group. -
Phillipsite and Al-Tobermorite Mineral Cements Produced Through Low-Temperature Water-Rock Reactions in Roman Marine Concrete Sean R
Western Washington University Western CEDAR Geology Faculty Publications Geology 2017 Phillipsite and Al-tobermorite Mineral Cements Produced through Low-Temperature Water-Rock Reactions in Roman Marine Concrete Sean R. Mulcahy Western Washington University, [email protected] Marie D. Jackson University of Utah, Salt Lake City Heng Chen Southeast University, Nanjing Yao Li Xi'an Jiaotong University, Xi'an Piergiulio Cappelletti Università degli Studi di Napoli Federico II, Naples See next page for additional authors Follow this and additional works at: https://cedar.wwu.edu/geology_facpubs Part of the Geology Commons Recommended Citation Mulcahy, Sean R.; Jackson, Marie D.; Chen, Heng; Li, Yao; Cappelletti, Piergiulio; and Wenk, Hans-Rudolf, "Phillipsite and Al- tobermorite Mineral Cements Produced through Low-Temperature Water-Rock Reactions in Roman Marine Concrete" (2017). Geology Faculty Publications. 67. https://cedar.wwu.edu/geology_facpubs/67 This Article is brought to you for free and open access by the Geology at Western CEDAR. It has been accepted for inclusion in Geology Faculty Publications by an authorized administrator of Western CEDAR. For more information, please contact [email protected]. Authors Sean R. Mulcahy, Marie D. Jackson, Heng Chen, Yao Li, Piergiulio Cappelletti, and Hans-Rudolf Wenk This article is available at Western CEDAR: https://cedar.wwu.edu/geology_facpubs/67 American Mineralogist, Volume 102, pages 1435–1450, 2017 Phillipsite and Al-tobermorite mineral cements produced through low-temperature k water-rock reactions in Roman marine concrete MARIE D. JACKSON1,*, SEAN R. MULCAHY2, HENG CHEN3, YAO LI4, QINFEI LI5, PIERGIULIO CAppELLETTI6, 7 AND HANS-RUDOLF WENK 1Department of Geology and Geophysics, University of Utah, Salt Lake City, Utah 84112, U.S.A. -
Thirty-Fourth List of New Mineral Names
MINERALOGICAL MAGAZINE, DECEMBER 1986, VOL. 50, PP. 741-61 Thirty-fourth list of new mineral names E. E. FEJER Department of Mineralogy, British Museum (Natural History), Cromwell Road, London SW7 5BD THE present list contains 181 entries. Of these 148 are Alacranite. V. I. Popova, V. A. Popov, A. Clark, valid species, most of which have been approved by the V. O. Polyakov, and S. E. Borisovskii, 1986. Zap. IMA Commission on New Minerals and Mineral Names, 115, 360. First found at Alacran, Pampa Larga, 17 are misspellings or erroneous transliterations, 9 are Chile by A. H. Clark in 1970 (rejected by IMA names published without IMA approval, 4 are variety because of insufficient data), then in 1980 at the names, 2 are spelling corrections, and one is a name applied to gem material. As in previous lists, contractions caldera of Uzon volcano, Kamchatka, USSR, as are used for the names of frequently cited journals and yellowish orange equant crystals up to 0.5 ram, other publications are abbreviated in italic. sometimes flattened on {100} with {100}, {111}, {ill}, and {110} faces, adamantine to greasy Abhurite. J. J. Matzko, H. T. Evans Jr., M. E. Mrose, lustre, poor {100} cleavage, brittle, H 1 Mono- and P. Aruscavage, 1985. C.M. 23, 233. At a clinic, P2/c, a 9.89(2), b 9.73(2), c 9.13(1) A, depth c.35 m, in an arm of the Red Sea, known as fl 101.84(5) ~ Z = 2; Dobs. 3.43(5), D~alr 3.43; Sharm Abhur, c.30 km north of Jiddah, Saudi reflectances and microhardness given. -
Wollastonite Paper Revised -Symplectic.Pdf
This is a repository copy of Thermal stability of C-S-H phases and applicability of Richardson and Groves’ and Richardson C-(A)-S-H(I) models to synthetic C-S-H. White Rose Research Online URL for this paper: http://eprints.whiterose.ac.uk/109873/ Version: Accepted Version Article: Rodriguez, ET, Garbev, K, Merz, D et al. (2 more authors) (2017) Thermal stability of C-S-H phases and applicability of Richardson and Groves’ and Richardson C-(A)-S-H(I) models to synthetic C-S-H. Cement and Concrete Research, 93. pp. 45-56. ISSN 0008-8846 https://doi.org/10.1016/j.cemconres.2016.12.005 © 2016 Published by Elsevier Ltd. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ Reuse Unless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version - refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher’s website. Takedown If you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing [email protected] including the URL of the record and the reason for the withdrawal request. -
Calcium-Aluminum-Silicate-Hydrate “
Cent. Eur. J. Geosci. • 2(2) • 2010 • 175-187 DOI: 10.2478/v10085-010-0007-6 Central European Journal of Geosciences Calcium-aluminum-silicate-hydrate “cement” phases and rare Ca-zeolite association at Colle Fabbri, Central Italy Research Article F. Stoppa1∗, F. Scordari2,E.Mesto2, V.V. Sharygin3, G. Bortolozzi4 1 Dipartimento di Scienze della Terra, Università G. d’Annunzio, Chieti, Italy 2 Dipartimento Geomineralogico, Università di Bari, Bari, Italy 3 Sobolev V.S. Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia 4 Via Dogali, 20, 31100-Treviso Received 26 January 2010; accepted 8 April 2010 Abstract: Very high temperature, Ca-rich alkaline magma intruded an argillite formation at Colle Fabbri, Central Italy, producing cordierite-tridymite metamorphism in the country rocks. An intense Ba-rich sulphate-carbonate- alkaline hydrothermal plume produced a zone of mineralization several meters thick around the igneous body. Reaction of hydrothermal fluids with country rocks formed calcium-silicate-hydrate (CSH), i.e., tobermorite- afwillite-jennite; calcium-aluminum-silicate-hydrate (CASH) – “cement” phases – i.e., thaumasite, strätlingite and an ettringite-like phase and several different species of zeolites: chabazite-Ca, willhendersonite, gismon- dine, three phases bearing Ca with the same or perhaps lower symmetry of phillipsite-Ca, levyne-Ca and the Ca-rich analogue of merlinoite. In addition, apophyllite-(KF) and/or apophyllite-(KOH), Ca-Ba-carbonates, portlandite and sulphates were present. A new polymorph from the pyrrhotite group, containing three layers of sphalerite-type structure in the unit cell, is reported for the first time. Such a complex association is unique. -
A Case Study from Fuka Contact Aureole, Okayama, Japan
328 Journal of Mineralogical andM. PetrologicalSatish-Kumar, Sciences, Y. Yoshida Volume and 99I. ,Kusachi page 328─ 338, 2004 Special Issue High temperature contact metamorphism from Fuka contact aureole, Okayama, Japan 329 The role of aqueous silica concentration in controlling the mineralogy during high temperature contact metamorphism: A case study from Fuka contact aureole, Okayama, Japan * * ** Madhusoodhan SATISH-KUMAR , Yasuhito YOSHIDA and Isao KUSACHI *Department of Biology and Geosciences, Faculty of Science, Shizuoka University, Shizuoka 422-8529, Japan **Department of Earth Sciences, Faculty of Education, Okayama University, Okayama 700-8530, Japan The contact aureole at Fuka, Okayama, Japan is peculiar for the occurrence of extensive high-temperature skarn resulting from the intrusion of Mesozoic monzodiorite into Paleozoic marine limestone. The occurrence is also notable for the finding of ten new minerals, of which five are calcium-boron-bearing minerals, and scores of other rare minerals. Skarn formation at Fuka can be classified into three major types 1. Grossular-vesuvianite- wollastonite endoskarn, 2. Gehlenite-exoskarns, and 3. Spurrite-exoskarns. Grossular-vesuvianite-wollas- tonite endoskarn forms a narrow zone (few centimeter width) separating the exoskarn and the igneous intrusion. It is also found, developed independently, along contacts of the younger basic intrusive dykes and limestone in the region. The gehlenite -exoskarns, in most cases, are spatially associated with igneous intrusion and are extensive (decimeter to meter thick). However, exceptions of independent gehlenite dikes are also observed. Retrogression of the gehlenite endoskarns results in the formation of hydrogrossular and/or vesuvianite. Accessory phases include schrolomite and perovskite. The predominantly monomineralic spurrite -exoskarn was formed in the outer zone of the gehlenite-skarn parallel to the contact as well as independent veins, dikes and tongues. -
Tobermorite and Tobermorite-Like Calcium Silicate Hydrates: Their
TOBERMORITE AND TOBERMORITE-L/KE CALCIUM SILICATE HYDRATES: \ THEIR PROPERTIES AND RELATIONSHIPS TO CLAY MINERALS AUG. 1963 NO. 24 DIAMOND PURDUE UNIVERSITY LAFAYETTE INDIANA Final Report TOBERMDRITE AND TOBERMORITE-LIKE CALCIUM SILICATE HYDRATES: THEIR PROPERTIES AND RELATIONSHIPS TO CIAY MINERALS TO: K. B. Woods, Director Joint Highway Research Project August 2, 1963 PROM: H. L. Michael, Associate Director File: 4-6-9 Joint High-way Research Project Project: C=36-^7I Attached is a Final Report "by Mr. Sidney Diamond, Graduate Assistant on our staff, entitled "Tobermorite and Tobermorite-Like Calcium Silicate Hydrates: Their Properties and Relationships to Clay Minerals"., This research has been performed under the direction of Professors J. L. White of the Purdue University Agronomy Department and Professor W. L. Dolch of our staff. Mr. Diamond also used the report as his disertation for the Ph.D. Degree. The Plan of Study for this research was approved by the Board on May 22, 1962, and it subsequently was approved by the Indiana State Highway Commission and the Bureau of Public Roads as an HPS research project. This is the final report on this project and it will be submitted to the sponsoring organization for review. Several papers from the research are anticipated and each will be submitted to the Board and the sponsors for review and approval prior to publication. The report is submitted to the Board for information and for the record. Respectfully submitted, Harold L. Michael, Secretary HLM:bc Attachment Copies: F. L. Ashbaucher J. F. McLaughlin J. R. Cooper R. D. Miles W. L. -
Joint Meeting
Joint Meeting 19. Jahrestagung der Deutschen Gesellschaft für Kristallographie 89. Jahrestagung der Deutschen Mineralogischen Gesellschaft Jahrestagung der Österreichischen Mineralogischen Gesellschaft (MinPet 2011) 20.-24. September 2011 Salzburg Referate Oldenbourg Verlag – München Inhaltsverzeichnis Plenarvorträge ............................................................................................................................................................ 1 Goldschmidt Lecture .................................................................................................................................................. 3 Vorträge MS 1: Crystallography at High Pressure/Temperature ................................................................................................. 4 MS 2: Functional Materials I ........................................................................................................................................ 7 MS 3: Metamorphic and Magmatic Processes I ......................................................................................................... 11 MS 4: Computational Crystallography ....................................................................................................................... 14 MS 5: Synchrotron- and Neutron Diffraction ............................................................................................................. 17 MS 6: Functional Materials II and Ionic Conductors ................................................................................................ -
New Mineral Names*
American Mineralogist, Volume 71, pages 227-232, 1986 NEW MINERAL NAMES* Pers J. Dulw, Gsoncr Y. CHao, JonN J. FrrzperRrcr, RrcHeno H. LaNcr-nv, MIcHeer- FrerscHnn.aNo JRNBIA. Zncznn Caratiite* sonian Institution. Type material is at the Smithsonian Institu- tion under cataloguenumbers 14981I and 150341.R.H.L. A. M. Clark, E. E. Fejer, and A. G. Couper (1984) Caratiite, a new sulphate-chlorideofcopper and potassium,from the lavas of the 1869 Vesuvius eruption. Mineralogical Magazine, 48, Georgechaoite* 537-539. R. C. Boggsand S. Ghose (1985) GeorgechaoiteNaKZrSi3Or' Caratiite is a sulphate-chloride of potassium and copper with 2HrO, a new mineral speciesfrom Wind Mountain, New Mex- ideal formula K4Cu4Or(SO4).MeCl(where Me : Na and,zorCu); ico. Canadian Mineralogist, 23, I-4. it formed as fine greenacicular crystalsin lava of the 1869 erup- S. Ghose and P. Thakur (1985) The crystal structure of george- tion of Mt. Vesuvius,Naples, Italy. Caratiite is tetragonal,space chaoite NaKZrSi3Or.2HrO. Canadian Mineralogist, 23, 5-10. group14; a : 13.60(2),c : a.98(l) A, Z:2.The strongestlines of the powder partern arc ld A, I, hkll: 9.61(l00Xl l0); Electron microprobe analysis yields SiO, 43.17, 7-xO229.51, 6.80(80X200); 4.296(60X3 I 0); 3.0I 5( 100b)(a 20,32r); 2.747 (7 0) NarO 7.42,IGO I1.28, HrO 8.63,sum 100.010/0,corresponding (4 I t); 2.673(60X5 I 0); 2.478(60)(002); 2. 3 8 8(70Xa 3 l, 50I ); to empirical formula Na, orl(oru(Zro rrTio o,Feo o,)Si, or Oe' 2. -
Phillipsite and Al-Tobermorite Mineral Cements Produced Through Low-Temperature Water-Rock Reactions in Roman Marine Concrete
UC Berkeley UC Berkeley Previously Published Works Title Phillipsite and Al-tobermorite mineral cements produced through low-temperature water-rock reactions in Roman marine concrete Permalink https://escholarship.org/uc/item/881113j7 Journal American Mineralogist, 102(7) ISSN 0003-004X Authors Jackson, MD Mulcahy, SR Chen, H et al. Publication Date 2017-07-01 DOI 10.2138/am-2017-5993CCBY Peer reviewed eScholarship.org Powered by the California Digital Library University of California American Mineralogist, Volume 102, pages 1435–1450, 2017 Phillipsite and Al-tobermorite mineral cements produced through low-temperature k water-rock reactions in Roman marine concrete MARIE D. JACKSON1,*, SEAN R. MULCAHY2, HENG CHEN3, YAO LI4, QINFEI LI5, PIERGIULIO CAppELLETTI6, 7 AND HANS-RUDOLF WENK 1Department of Geology and Geophysics, University of Utah, Salt Lake City, Utah 84112, U.S.A. 2Geology Department, Western Washington University, Bellingham, Washington 98225, U.S.A. 3School of Materials Science and Engineering, Southeast University, Nanjing 211189, People’s Republic of China 4Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano), Xi’an Jiaotong University, Xi’an 710049, People’s Republic of China 5School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, People’s Republic of China 6Dipartimento di Scienze della Terra, dell’Ambiente e delle Risorse (DiSTAR), Università degli Studi di Napoli Federico II, Naples I-80134, Italy 7Department of Earth and Planetary Sciences, University of California, Berkeley, California 94720, U.S.A. ABSTRACT Pozzolanic reaction of volcanic ash with hydrated lime is thought to dominate the cementing fabric and durability of 2000-year-old Roman harbor concrete. -
Cementitious Phases
CEMENTITIOUS PHASES In the context of waste confinement and, more specifically, waste from the nuclear industry, concrete is used both as a confinement and a building material. High-level long lived radwaste and some of the intermediate level wastes are exothermic (e.g. compacted hulls and endspecies) and then, temperature exposure of concrete backfill and packages must be considered. The present work aims at defining the solubility constants of the minerals that compose cement pastes, based on the most recent works on this subject and in agreement with the Thermochimie data base. Data selection takes into consideration a range of temperatures from 10 to 100°C. This implies to develop a thermodynamic database complete enough in terms of mineral phases. This also implies to focus the selection not only on the equilibrium constants but on the enthalpy of formation and the heat capacity of each mineral. The chemical system investigated is a complex one, CaO-SiO -Al O -MgO-Fe O -CO -SO -Cl-H O. This 2 2 3 2 3 2 3 2 includes nanocrystalline and crystalline C-S-H phases and accessory cementitious mineral such as ettringite or katoite, for example. In summary, a solubility model for cement phases is proposed in Thermochimie because: - cement is a key material for containment barriers - available models still carry on problems concerning katoite, monosulfoaluminates - available models are not consistent with Thermochimie 1 PRELIMINARY ASPECTS OF THE SELECTION PROCEDURE 1.1 SELECTION GUIDELINES The selection for thermodynamic properties of cementitious minerals is proceeds following different guidelines : - when possible, we avoid fitting LogK(T) functions, as well as averaging equilibrium constants.