Abstract
Single crystals of analcime were hydrothermally synthesized from a gel of analcime composition at 200 °C for 24 h. They were grown up to 100 μm in size with typical deltoidal icositetrahedron habit. The chemical composition determined by EPMA and TG analyses was Na0.84(Al0.89Si2.12)O6·1.04H2O. The single-crystal X-ray diffraction method was used to determine the symmetry and crystal structure of analcime. The analcime grown from a gel crystallized in cubic space group Ia3d with lattice parameter a = 13.713(3) Å. In the cubic analcime, Si and Al cations were totally disordered over the framework T sites with site occupancy of Si:Al = 0.6871:0.3129(14). The single crystals of analcime with cubic symmetry were hydrothermally reheated at 200 °C in ultrapure water. After the hydrothermal treatment for 24 h, forbidden reflections for the cubic Ia3d symmetry were observed. The reflection conditions led to an orthorhombic space group Ibca with lattice parameters a = 13.727(2) Å, b = 13.707(2) Å, and c = 13.707(2) Å. The unit-cell showed a slight distortion with (a + b)/2 > c, yielding a flattened cell along c. In the orthorhombic analcime, Al exhibited a site preference for T11 site, which indicates that the Si/Al ordering over the framework T sites lowers the symmetry from cubic Ia3d to orthorhombic Ibca. After the hydrothermal treatment for 48 h, reflections corresponding to orthorhombic space group Ibca were observed as well. The lattice parameters were a = 13.705(2) Å, b = 13.717(2) Å, and c = 13.706(2) Å, retaining the flattened cell shape with (a + b)/2 > c. The Si and Al cations were further ordered among the framework T sites than the case of the hydrothermal treatment for 24 h. As a consequence, the Si/Al ordering was slightly but significantly accelerated with increasing the hydrothermal treatment time. During the hydrothermal reaction, however, chemical compositions were almost unchanged. The site occupancies of Na over the extra-framework sites remained unaffected with the heating time; thus, the hydrothermal heating influences the degree of ordering of Si and Al over the framework T sites rather than that of Na among the extra-framework sites.
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References
Anthony JW, Bideaux RA, Bladh KW, Nichols MC (1995) Handbook of mineralogy, vol II, silica, silicates, part 1. Mineral Data Publishing, Tucson, p 446
Autefage F, Couderc J-J (1980) Étude du mécanisme de la migration du sodium et du potassium au cours de leur analyse à la microsonde électronique. Bull de Minéral 103:623–629
Baerlocher CH, McCusker LB, Olson DH (2007) Atlas of zeolite framework types. Elsevier, Amsterdam, p 398
Bruker (1998) SHELXTL: structure determination programs Ver. 5.16. Bruker AXS Inc., Madison
Bruker (2006) Apex2 Version 2: data collection and processing software. Bruker AXS Inc., Madison
Campbell LS, Charnock J, Dyer A, Hillier S, Chenery S, Stoppa F, Henderson CMB, Walcott R, Rumsey M (2016) Determination of zeolite-group mineral compositions by electron probe microanalysis. Miner Mag 80:781–807
Cheng X, Zhao PD, Stebbins JF (2000) Solid state NMR study of oxygen site exchange and Al-O-Al site concentration in analcime. Am Miner 85:1030–1037
Chipera SJ, Bish DL (2010) Rehydration kinetics of a natural analcime. Eur J Miner 22:787–795
Coombs DS, Alberti A, Armbruster T, Artioli G, Colella C, Galli E, Grice JD, Liebau F, Mandarino JA, Minato H, Nickel EH, Passaglia E, Peacor DR, Quartieri S, Rinaldi R, Ross M, Sheppard RA, Tillmanns E, Vezzalini G (1997) Recommended nomenclature for zeolite minerals: report of the subcommittee on zeolites of international mineralogical association, commission on new minerals and minerals names. Can Miner 35:1571–1606
Cruciani G, Gualtieri A (1999) Dehydration dynamics of analcime by in situ synchrotron powder diffraction. Am Miner 84:112–119
Deer WA, Howie RA, Wise WS, Zussman J (2004) Rock-forming minerals, 4B framework silicates—silica minerals, feldspathoids and zeolites. The Geological Society, London
Demeny A, Harangi S, Forizs I, Nagy G (1997) Primary and secondary features from analcimes formed in carbonate-zeolite ocelli of alkaline basalts (Mecsek Mts., Hungary): textures, chemical and oxygen isotope compositions. Geochem J 31:37–47
Ferraris G, Jones DW, Yerkess J (1972) A neutron-diffraction study of the crystal structure of analcime, NaAlSi2O6·H2O. Z Kristallogr 135:240–252
Gaines RV, Skinner HCW, Foord EE, Mason B, Rosenzweig A (1997) Dana’s new mineralogy: the system of mineralogy of James Dwight Dana and Edward Salisbury Dana, 8th edn. Wiley, New York, p 854
Gatta GD, Nestola F, Ballaran TB (2006) Elastic behavior, phase transition, and pressure induced structural evolution of analcime. Am Miner 91:568–578
Hazen RM, Finger LW (1979) Polyhedral tilting: a common type of pure displacive phase transition and its relationship to analcime at high pressure. Phase Transit 1:1–22
Henderson CMB, Hamilton DL, Waters JP (2014) Phase equilibria in NaAlSiO4-KAlSiO4-SiO2-H2O at 100 MPa pressure: equilibrium leucite composition and the enigma of primary analcime in blairmorites revisited. Miner Mag 78:171–202
Karlsson HR, Clayton RN (1991) Analcime phenocrysts in igneous rocks: primary or secondary? Am Miner 76:189–199
Kim Y, Kirkpatrick RJ (1998) High-temperature multi-nuclear NMR investigation of analcime. Am Miner 83:339–347
Kim Y, Lee SK, Kirkpatrick RJ (2010) Effects of intermediate range structure on the Si-29 NMR chemical shifts of framework silicates: results for analcime. Am Miner 95:1694–1700
Kohn SC, Henderson CMB, Dupree R (1995) Si-Al order in leucite revisited: new information from an analcite-derived analogue. Am Miner 80:705–714
Line CM, Purnis A, Purnis C, Giampaolo C (1995) The dehydration kinetics and microtexture of analcime from two parageneses. Am Miner 80:268–279
Mazzi F, Galli E (1978) Is each analcime different? Am Miner 63:448–460
Morgan GB, London D (1996) Optimizing the electron microprobe analysis of hydrous alkali aluminosilicate glasses. Am Miner 81:1176–1185
Morgan GB, London D (2005) Effect of current density on the electron microprobe analysis of alkali aluminosilicate glasses. Am Miner 90:1131–1138
Murdoch JB, Stebbins JF, Carmichael ISE, Pines A (1988) A silicon-29 nuclear magnetic resonance study of silicon-aluminum ordering in leucite and analcite. Phys Chem Miner 15:370–382
Neuhoff PS, Hovis GL, Balassone G, Stebbins JF (2004) Thermodynamic properties of analcime solid solutions. Am J Sci 304:21–66
Pearce TH (1993) Analcime phenocrysts in igneous rocks: primary or secondary? -discussion. Am Miner 78:225–229
Pechar F (1988) The crystal structure of natural monoclinic analcime (NaAlSi2O6·H2O). Z Kristallogr 184:63–69
Phillips BL, Kirkpatrick RJ (1994) Short-range Si-Al order in leucite and analcime: determination of the configurational entropy from 27Al and variable-temperature 29Si NMR spectroscopy of leucite, its Cs- and Rb-exchanged derivatives, and analcime. Am Miner 79:1025–1031
Prelević D, Foley SF, Cvetkovic V, Romer RL (2004) The analcime problem and its impact on the geochemistry of ultrapotassic rocks from Serbia. Miner Mag 68:633–648
Putnis CV, Geisler T, Schmid-Beurmann P, Stephan T, Giampaolo C (2007) An experimental study of the replacement of leucite by analcime. Am Miner 92:19–26
Seryotkin YV, Bakakin VV (2008) The thermal behavior of secondary analcime as leucite derivate and its structural interpretation. Russ Geol Geophys 49:153–158
Seryotkin YV, Joswig W, Bakakin VV, Belitsky IA, Fursenko BA (2003) High-temperature crystal structure of wairakite. Eur J Miner 15:475–484
Sheldrick GM (1997) SHELXL97: Program for the refinement of crystal structures. University of Göttingen, Germany
Sheldrick GM (1999) SADABS: Empirical absorption and correction software. University of Göttingen, Germany
Takéuchi Y, Mazzi F, Haga N, Galli E (1979) The crystal structure of wairakite. Am Miner 64:993–1001
Teertstra DK, Sherriff BL, Xu Z, Cerny P (1994) MAS and DOR NMR study of Al-Si order in the analcime-pollucite series. Can Miner 32:69–80
Wilkinson JFG (1977) Analcime phencrysts in a vitrophyric analcimite-primary or secondary? Contrib Miner Petrol 64:1–9
Acknowledgements
We appreciate the incisive reviews by Akihiko Nakatsuka and an anonymous reviewer, which led to numerous improvements in the manuscript. We also thank Taku Tsuchiya for his editorial handling. The work was partially supported by a Grant-in-Aid for Scientific Research (C) from the Japan Society for the Promotion of Science (Project no. 26400511).
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Sugano, N., Kyono, A. An experimental study of symmetry lowering of analcime. Phys Chem Minerals 45, 381–390 (2018). https://doi.org/10.1007/s00269-017-0922-1
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Keywords
- Analcime
- Single-crystal X-ray diffraction
- Symmetry lowering
- Si/Al ordering