Hostname: page-component-89b8bd64d-mmrw7 Total loading time: 0 Render date: 2026-05-08T19:58:45.197Z Has data issue: false hasContentIssue false
  • English
  • Français

Improved powder X-ray data for Cancrinites III: Davyne

Published online by Cambridge University Press:  10 January 2013

Paolo Ballirano ,
Adriana Maras ,
Peter R. Buseck  and
Ann M. Yates
Paolo Ballirano
Affiliation:
Dipartimento di Scienze della Terra, Università degli studi di Pisa, Via S. Maria 53, Pisa, I-56126, ITALY
Adriana Maras
Affiliation:
Dipartimento di Scienze della Terra, Università degli studi di Roma “La Sapienza”, Ple A. Moro 5, Roma, I-00185, ITALY
Peter R. Buseck
Affiliation:
Departments of Geology and Chemistry/Biochemistry, Arizona State University, Tempe, Arizona 85287-1404
Ann M. Yates
Affiliation:
Departments of Geology and Chemistry/Biochemistry, Arizona State University, Tempe, Arizona 85287-1404
Get access

Abstract

New powder X-ray diffraction data of davyne, a member of the cancrinite group of minerals, were collected using a rotating anode diffractometer: the hexagonal cell parameters are a=12.6711(3) Å, c=5.3278(2) Å, volume 740.82(4) Å3 (space group P63). The strongest lines are: 3.658(100), 4.790(73), 3.272(70), 2.112(48), 2.438(22), 2.663(19), 1.781(19), and 4.147(17). The new data provide quantitative intensities improved precision in d-spacings and cover an increased 2θ angular range with respect to PDF 20-379. Measured intensities and a simulated pattern are reported together with crystal-chemical considerations.

Information

Type
Research Article
Information
Powder Diffraction , Volume 12 , Issue 2 , June 1997 , pp. 99 - 102
Copyright
Copyright © Cambridge University Press 1997

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.)

Article purchase

Temporarily unavailable

References

Appleman, D. E. & Evans, H. T., Jr. (1973). Indexing and least-squares refinement of powder diffraction data. U.S. Nat. Tech. In. Serv. Doc. PB216188.Google Scholar
Ballirano, P. (1994). Studio cristallochimico dei minerali del gruppo della cancrinite. Tesi di Dottorato di Ricerca, Università degli studi di Roma “La Sapienza”, 144 pp. (unpublished).Google Scholar
Ballirano, P., Maras, A., Buseck, P. R., Wang, S., & Yates, A. M. (1994). Improved powder X-ray data for cancrinites I: Afghanite. Powder Diffr., 9(1), 68–73.CrossRefGoogle Scholar
Ballirano, P., Maras, A., & Buseck, P. R. (1996). Crystal chemistry and IR spectroscopy of Cl- and SO 4-bearing cancrinite-like minerals. Am. Mineral., 81, 1003–1012.CrossRefGoogle Scholar
Bariand, P., Cesbron, F., & Giraud, R. (1968). Une nouvelle espece minerale: l’afghanite de Sar-e-Sang, Badakhshan, Afghanistan. Comparison avec les mineraux du groupe de la cancrinite. Bull. Soc. Fr. Mineral. Cristallogr., 91, 34–42.Google Scholar
Benoit, P. H. (1987). Adaptation to microcomputer of the Appleman-Evans program for indexing and least-squares refinement of powder-diffraction data for unit-cell dimensions. Am. Mineral., 72, 1018–1019.Google Scholar
Bonaccorsi, E. (1993). Feldspathoids belonging to the davyne group: crystal chemistry, phase transitions and ionic exchanges. Plinius 9, 16–22.Google Scholar
Bonaccorsi, E., Comodi, P., & Merlino, S. (1995). Thermal behaviour of davyne-group minerals. Phys. Chem. Minerals 22, 367–374.CrossRefGoogle Scholar
Bonaccorsi, E., Merlino, S. & Pasero, M. (1990). Davyne: its structural relationship with cancrinite and vishnevite. N. Jb. Miner. Mh. H3, 97–112.Google Scholar
Bonaccorsi, E., Merlino, S. & Pasero, M. (1992). Davyne from Zabargad (St. John’s) Island: peculiar chemical and structural features. Acta Vulcanologica 2, 55–63.Google Scholar
Gossner, B. & Mussgnug, F. (1930). Uber Davyn und seine Beziehungen zu Hauyn und Cancrinit. Zeit Krist. 73, 52–60. (Min. Abst. 4, 279).Google Scholar
Hassan, I. & Grundy, H. D. (1990). Structure of davyne and implications for stacking faults. Can. Mineral. 28, 341–349.Google Scholar
Monticelli, T. & Covelli, N. (1825). Prodromo della mineralogia Vesuviana. 405–420.Google Scholar
Pauling, L. (1930). The structure of some sodium and calcium aluminosilicates. Proc. Natl. Acad. Sci. USA, 16, 453–459.CrossRefGoogle ScholarPubMed
Smith, G. S., & Snyder, R. L. (1979). FN: A criterion for rating powder diffraction patterns and evaluating the reliability of powder-pattern indexing. J. Appl. Crystallogr., 12, 60.CrossRefGoogle Scholar
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.CrossRefGoogle Scholar
de Wolff, P. M. (1968). A simplified criterion for the reliability of a powder-pattern indexing. J. Appl. Crystallogr., 1, 108.CrossRefGoogle Scholar