Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-24T19:50:08.606Z Has data issue: false hasContentIssue false
  • English
  • Français

A disc with fivefold symmetry: the proposed fundamental seed structure for the formation of chrysotile asbestos fibres, polygonal serpentine fibres and polyhedral lizardite spheres

Published online by Cambridge University Press:  05 July 2018

G. Cressey ,
B. A. Cressey ,
F. J. Wicks  and
K. Yada
G. Cressey*
Affiliation:
Department of Mineralogy, Natural History Museum, Cromwell Road, London SW7 5BD, UK
B. A. Cressey
Affiliation:
Electron Microscopy Centre, School of Chemistry, University of Southampton, Southampton SO17 1BJ, UK
F. J. Wicks
Affiliation:
Natural History Department, Royal Ontario Museum, 100 Queen's Park, Toronto M5S 2C6, Canada
K. Yada
Affiliation:
Technical Center 2, 2-27-7 Tamagawa Chofu, Tokyo 182-0025, Japan
*
*E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

A chrysotile disc is proposed as the fundamental seed structure for the formation of chrysotile asbestos fibres, polygonal serpentine fibres and polyhedral lizardite spheres. The curvature, fivefold symmetry and hydrogen-bonding alignment of the layers in the seed disc control the formation of the 15 or 30 sectors in polygonal serpentine and the orientations of the planar arrays of 15 or 30 radial crystals in polyhedral serpentine. A polygonized disc precursor to polygonal fibre formation has been observed at an arrested stage of growth in a synthesis experiment.

Keywords

fivefold symmetryserpentinelizarditechrysotileasbestospolygonal fibrespolyhedral spheres
Type
Letter
Information
Mineralogical Magazine , Volume 74 , Issue 1 , February 2010 , pp. 29 - 37
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Andréani, M., Mével, C., Boullier, A.-M. and Escartin, J. (2007) Dynamic control on serpentine crystallization in veins: Constraints on hydration processes in oceanic peridotites. Geochemistry Geophysics Geosystems, 8, Q02012, doi: 10.1029/2006GC001373.CrossRefGoogle Scholar
Andréani, M., Grauby, O., Baronnet, A. and Muñoz, M. (2008) Occurrence, composition and growth of polyhedral serpentine. European Journal of Mineralogy, 20, 159–171.CrossRefGoogle Scholar
Baronnet, A. and Devouard, B. (2005) Microstructures of common polygonal serpentines from axial HRTEM imaging, electron diffraction and lattice-simulation data. The Canadian Mineralogist, 43, 513–542.CrossRefGoogle Scholar
Baronnet, A. and Mellini, M. (1992) Polygonized serpentine as the first mineral with five-fold symmetry. Proceedings of the 29th International Geological Congress, Kyoto, 3, 682.Google Scholar
Baronnet, A., Mellini, M. and Devouard, B. (1994) Sectors in polygonal serpentine: A model based on dislocations. Physics and Chemistry of Minerals, 21, 330–343.CrossRefGoogle Scholar
Baronnet, A., Andréani, M., Grauby, O., Devouard, B., Nitsche, S. and Chaudanson, D. (2007) Onion morphology and microstructure of polyhedral serpentine. American Mineralogist, 92, 687–690.CrossRefGoogle Scholar
Chisholm, J.E. (1992) The number of sectors in polygonal serpentine. The Canadian Mineralogist, 30, 355–365.Google Scholar
Cressey, B.A. and Whittaker, E.J.W. (1993) Five-fold symmetry in chrysotile asbestos revealed by transition electron microscopy. Mineralogical Magazine, 57, 729–732.CrossRefGoogle Scholar
Cressey, B.A. and Zussman, Z. (1976) Electron microscopic studies of serpentinites. The Canadian Mineralogist, 14, 307–313.Google Scholar
Cressey, B.A., Cressey, G. and Cernik, R.J. (1994) Structural variations in chrysotile asbestos fibres revealed by synchrotron X-ray diffraction and high-resolution transmission electron microscopy. The Canadian Mineralogist, 32, 257–270.Google Scholar
Cressey, G., Cressey, B.A. and Wicks, F.J. (2008) Polyhedral serpentine: a spherical analogue of polygonal serpentine? Mineralogical Magazine, 72, 1229–1242.CrossRefGoogle Scholar
Cressey, G., Cressey, B.A. and Wicks, F.J. (2009) Polyhedral serpentine: a spherical analogue of polygonal serpentine. XIV International Clay Conference, Italy 2009, Abstract Volume 1, 368.Google Scholar
Devouard, B. and Baronnet, A. (1993) Five-fold symmetry in chrysotile. EUG VII, Strasbourg. Terra Abstracts, Terra Nova 5 (supplement), 351.Google Scholar
Devouard, B., Baronnet, A., van Tendeloo, G. and Amelinckx, S. (1997) First evidence of synthetic polygonal serpentines. European Journal of Mineralogy, 9, 539–546.CrossRefGoogle Scholar
Dodony, I. (1997) Structure of the 30-sectored polygonal serpentine. A model based on TEMand SAED studies. Physics and Chemistry of Minerals, 24, 39–49.Google Scholar
Grauby, O. and Baronnet, A. (2009) Synthesis of polyhedral serpentine. XIV International Clay Conference, Italy 2009, Abstract Volume 2, 466.Google Scholar
Grauby, O., Baronnet, A., Devouard, B., Schoumacker, K. and Demirdjian, L. (1998) The chrysotile-polygonal serpentine-lizardite suite synthesized from a 3MgO-2SiO2-excess H2O gel. Terra Nova, Orléans. 7 th International Symposium on Experimental Mineralogy, Petrology and Geochemistry, Abstract Supplement 1, 24.Google Scholar
Logar, M. and Mellini, M. (2009) Structural refinement of polygonal serpentine. XIV International Clay Conference, Italy 2009, Abstract Volume 2, 469.Google Scholar
Mugnaioli, E., Logar, M., Mellini, M. and Viti, C. (2007) Complexity in 15- and 30-sectors polygonal serpentine: Longitudinal sections, intrasector stacking faults and XRPD satellites. American Mineralogist, 92, 603–616.CrossRefGoogle Scholar
Whittaker, E.J.W. (1954) The diffraction of X-rays by a cylindrical lattice. I. Acta Crystallographica, 7, 827–832.CrossRefGoogle Scholar
Wicks, F.J. and O'Hanley, D.S. (1988) Serpentine Minerals: structures and petrology. Pp. 91–167 in: Hydrous Phyllosilicates (Exclusive of Micas) (Bailey, S.W., editor). Reviews in Mineralogy, 19, Mineralogical Society of America, Chantilly, Virginia, USA.CrossRefGoogle Scholar
Yada, K. and Iishi, K. (1974) Serpentine minerals hydrothermally synthesized and their microstructures. Journal of Crystal Growth, 24/25, 627–630.CrossRefGoogle Scholar
Yada, K. and Iishi, K. (1977) Growth and microstructures of synthetic chrysotile. American Mineralogist, 62, 958–965.Google Scholar