Contrasting patterns of [6]Al order in synthetic pargasite and Co-substituted pargasite

Canadian Mineralogist

Volumn 36, Issue 5, 1998, Pages 1237-1244

  Della Ventura, Giancarlo ^a   Robert, Jean Louis ^b   Hawthorne, Frank C ^c   Raudsepp, Mati ^d   Welch, Mark D ^e  

^a ROMA TRE UNIVERSITY   (Italy)

^b CNRS and FR 09   (France)

^c UNIVERSITY OF MANITOBA   (Canada)

^d UNIVERSITY OF BRITISH COLUMBIA   (Canada)

^e DEPARTMENT OF LIFE SCIENCES   (United Kingdom)

Author keywords

Cobalt; Infrared spectroscopy; Order disorder; Pargasite; Rietveld refinement; Synthesis

Indexed keywords

ALUMINUM; COBALT; CRYSTAL STRUCTURE; PARGASITE;

EID: 0032465010     PISSN: 00084476     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (29)

1. BOYD, F.R. (1959): Hydrothermal investigations of amphiboles. In Researches in Geochemistry 1 (P.H. Abelson, ed.). John Wiley and Sons, New York, N.Y. (377-396).
2. BRAUE, W. & SECK, H.A. (1977): Stability of pargasite - richterite solid-solutions at 1 kb water vapour pressure. Neues Jahrb. Mineral., Abh. 130, 19-32.
3. CAGLIOTI, G., PAOLETTI, A. & RICCI, F.P. (1958): Choice of collimators for a crystal spectrometer for neutron diffraction. Nuclear Instr. 3, 223-228.
4. CHARLES, R.W. (1974): The physical properties of the Mg-Fe richterites. Am.Mineral. 59, 518-528.
5. _ (1980): Amphiboles on the join pargasite - ferropargasite. Am. Mineral. 65, 996-1001.
6. COLVILLE, P.A., ERNST, W.G. & GILBERT, MC. (1966): Relationships between cell parameters and chemical compositions of monoclinic amphiboles. Am. Mineral. 51, 1727-1754.
7. DELLA VENTURA, G., HAWTHORNE, F.C., ROBERT, J.-L., DELBOVE, F., WELCH, M.D. & RAUDSEPP, M. (1998): Short-range order of cations in synthetic amphiboles along the richterite - pargasite join. Eur. J. Mineral., in press.
8. 2O-HF. Am. Mineral. 78, 980-987.
9. _, _ & HAWTHORNE, F.C. (1996) Infrared spectroscopy of synthetic (Ni,Mg,Co)-potassium-richterite. In Mineral Spectroscopy: a Tribute to Roger G. Burns (M.D. Dyar, C. McCammon & M.W. Schaefer, eds.). The Geochemical Society, Spec. Publ. 5, 55-63.
10. _, _, RAUDSEPP, M. & HAWTHORNE, F.C. (1993a): Site occupancies in monoclinic amphiboles: Rietveld structure refinement of synthetic nickel magnesium cobalt potassium richterite. Am. Mineral. 78, 633-640.
11. _, _, _, _ & WELCH, M.D. (1997): Site occupancies in synthetic monoclinic amphiboles: Rietveld structure-refinement and infrared spectroscopy of (nickel, magnesium, cobalt)-richterite. Am. Mineral. 82, 291-301.
12. GILBERT, M.C. (1969): Reconnaissance study of the stability of amphiboles at high pressure. Carnegie Inst. of Washington, Year Book 67, 167-170.
13. HAMILTON, D.L. & HENDERSON, C.M.B. (1968): The preparation of silicate compositions by a gelling method. Mineral. Mag. 36, 832-838.
14. HAWTHORNE, F.C. (1995): Entropy-driven disorder in end-member amphiboles. Can. Mineral. 33, 1189-1204.
15. HILL, R.J. & HOWARD, C.J. (1986): A computer program for Rietveld analysis of fixed-wavelength X-ray and neutron diffraction pattern. Australian Atomic Energy Commission (now ANSTO), Lucas Heights Research Laboratories (Menai, New South Wales, Australia), Rep. M112.
16. HINRICHSEN, T. & SCHÜRMANN, K. (1977): Experimental investigations on the Na/K substitution in edenites and pargasites. Neues Jahrb. Mineral., Abh. 130, 12-18.
17. 2: a model for melting of a hydrous mineral with a mixed-volatile fluid. I. Experimental results to 8 kbar. Geochim. Cosmochim. Acta 37, 651-666.
18. OBA, T. (1980): Phase relations on the tremolite - pargasite join. Contrib. Mineral. Petrol. 71, 247-256.
19. [6]Al disorder in amphiboles from mantle peridototes. Can. Mineral. 33, 867-878.
20. RAUDSEPP, M., TURNOCK, A.C. & HAWTHORNE, F.C. (1991): Amphibole synthesis at low pressure: what grows and what doesn't. Eur. J. Mineral. 3, 983-1004.
21. 19F MAS NMR spectroscopy. Am. Mineral. 72, 580-593.
22. RIETVELD, H.M. (1969): A profile refinement method for nuclear and magnetic structures. J. Appl. Crystallogr. 2, 65-71.
23. ROBERT, J.-L. (1981): Etudes cristallochimiques sur les micas et les amphiboles. Applications pétrographiques et géochimiques. Thèse d'Etat, Université Paris XI, Paris, France.
24. 2O-HF. Eur. J. Mineral. 1, 203-211.
25. SEMET, M.P. (1973): A crystal-chemical study of synthetic magnesiohastingsite. Am. Mineral. 58, 480-494.
26. SHANNON, R.D. (1976): Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides. Acta Crystallogr. A32, 751-767.
27. WELCH, M.D., KOLODZIEJSKI, W. & KLINOWSKI, J. (1994): A multinuclear NMR study of synthetic pargasite. Am. Mineral. 79, 261-268.
28. WESTRICH, H.R. & HOLLOWAY, J.R. (1981): Experimental dehydration of pargasite and calculation of its entropy and Gibbs energy. Am. J. Sci. 281, 922-934.
29. WILES, D.B. & YOUNG, R.A. (1981): A new computer program for Rietveld analysis of X-ray powder diffraction patterns. J. Appl. Crystallogr. 14, 149-151.