Modelling the nature of disorder in talc by simulation of X-ray powder patterns

European Journal of Mineralogy

Volumn 11, Issue 3, 1999, Pages 521-532

  Gualtieri, Alessandro F ^a  

^a UNIVERSITY OF MODENA AND REGGIO EMILIA   (Italy)

Author keywords

DIFFaX; Planar disorder; Simulated powder pattern; Talc

Indexed keywords

DIFFAX; DISORDER EFFECT; LAYER STACKING; MICROSTRUCTURE EFFECTS; PLANAR DISORDER; POWDER PATTERNS; PREFERRED ORIENTATIONS; RANDOM SEQUENCE;

TALC;

CRYSTAL CHEMISTRY; CRYSTAL STRUCTURE; TALC; X-RAY DIFFRACTION;

EID: 0032885797     PISSN: 09351221     EISSN: None     Source Type: Journal    
DOI: 10.1127/ejm/11/3/0521     Document Type: Article

References (31)

1. Alietti, A. (1959): Diffusione e significato dei minerali a strati misti nelle serpentine mineralizzate a talco dell' Appennino Parmense. Per. di Min., 28, 65-110.
2. Allegra, G. (1964): The calculation of the intensity of X-rays diffracted by monodimensionally disordered structures. Acta Cryst., 17, 579-586.
3. Akizuki, M. & Zussman, J. (1978): The unit cell of talc. Min. Mag., 42, 107-110.
4. Artioli, G., Bellotto, M., Gualtieri, A., Pavese, A. (1995): Nature of structural disorder in natural kaolinites: a new model based on computer simulation of powder diffraction data and electrostatic energy calculations. Clays and Clay Min., 43, 438-445.
5. Bailey, S.W. (1980): Structures of layer silicates. in Crystal structures of clay minerals and their X-ray identification, G.W. Brindley & G. Brown, eds., Min. Soc. Great Britain, Monogr. 5, London.
6. _ (1984): Crystal chemistry of the true micas. Ch. 2 in Micas, S.W. Bailey, ed., Reviews in Mineralogy, Mineralog. Soc. Amer., 13, 13-60.
7. Banchio, G. (1991): Tecniche avanzate di analisi difrattometrica. Applicazione a fasi mineralogiche di interesse ceramico. Degree thesis (in Italian), Istituto di Mineralogia e Petrografia, The University of Modena, Italy.
8. Bertolani, M., Capelli, R., Gualtieri, A. (1994): II giacimento di talco di Rocca Murata. L'Ind. Min., 3, 9-13.
9. Brindley, G.W. & Brown G. (1980): Crystal structures of clay minerals and their X-ray identification. London. Mineralogical Society.
10. Cowley, J.M. (1976): Diffraction by crystals with planar faults. I. General theory. Acta Cryst., A34, 83-87.
11. Dollase, W.A. (1986): Correction of intensities for preferred orientation in powder diffractometry: application for the March model. J. Appl. Cryst., 19, 267-271.
12. Giese, R.F. (1979): Hydroxyl orientation in 2:1 phyllosilicates. Clays and Clay Min., 27, 213-223.
13. Hendricks, S. & Teller, E. (1942): X-ray interference in partially ordered layer lattices. J. Chem. Phys., 10, 147-167.
14. Langford, J.I., Boultif, A., Auffredic, J.P., Louër, D. (1993): The use of pattern decomposition to study the combined X-ray diffraction effects of crystallite size and stacking faults in ex-oxalate zinc oxide. J. Appl. Cryst., 26, 22-23.
15. Larson, A.C. & Von Dreele, R.B. (1998): GSAS. General Structure Analysis System. Report LAUR 86-748. Los Alamos National Laboratory, NM.
16. Louër, D. & Langford, J.I. (1988) Peak shape and resolution in conventional diffractometry with monocromatic X-rays. J. Appl. Cryst., 21, 430-437.
17. Michalsky, E. (1988): The diffraction of X-rays by close packed polytypic crystals containing single stacking faults. I. General theory. Acta Cryst., A44, 640-649.
18. Michalsky, E., Kaczmarek, S., Demianiuk, M. (1988): The diffraction of X-rays by close packed polytypic crystals containing single stacking faults. I. Theory for hexagonal and rhombohedral structures. Acta Cryst., A44, 650-657.
19. 10]. Z Krist., 156, 177-186.
20. Radoslovich, E.W. (1962): The cell dimensions and symmetry of layer silicates-II. Regression relations. Am. Min., 47, 617-636.
21. Rayner, J.H. & Brown, G. (1965): Structure of pyrophyllite. Clays and Clay Min., 13, 73-84.
22. _ _ (1973): The crystal structure of talc. Clays and Clay Min., 21, 103-114.
23. Repossi, E. (1942): Il talco dell'Appennino Parmense. Rend. Soc. Min. It., 2, 47-60.
24. Ross, M., Smith, W.L., Ashton, W.H. (1968): Triclinic talc and associated amphiboles from Governeur district, New York. Am. Min., 65, 1217-1219.
25. Sanford, R.F. (1982): Growth of ultramafic reaction zones in greenschist to amphibolite facies metamorphism. Am. J. Sci., 282, 543-616.
26. Treacy, M.M.J., Newsam, J.M., Deem M.W. (1991): A general recursion method for calculating diffracted intensities from crystals containing planar faults. Proc. R. Soc. London A, 433, 499-520.
27. Van Berkum, J.G.M., Delhez, R., Keijser, Th.H. de, Mittemeijer, E.J. (1996): Diffraction-line broadening due to strain fields in materials; fundamental aspects and methods of analysis. Acta Cryst., A52, 730-747.
28. Warren, B.E. (1969): X-ray diffraction. Reading, Massachussets. Addison Wesley.
29. 3. Proc. R. Soc. London A, 181, 360-368.
30. Young, R.A. & Wiles, D.B. (1982): Profile shape functions in Rietveld refinements. J. Appl. Cryst., 15, 430-438.
31. Zvyagin, B.B., Mishchenko, K.S., Soboleva, S.V. (1969): Structures of pyrophyllite and talc in relation to the polytypes of mica-type minerals. Sov. Phys. Cryst., 13, 511-515.