Quick
Search: 		  
advanced search
 GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help 
American Mineralogist Email Content Delivery
JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
American Mineralogist; April 2003; v. 88; no. 4; p. 653-666
© 2003 Mineralogical Society of America
This Article
Right arrow Figures Only
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Web of Science (14)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Thompson, R. M.
Right arrow Articles by Downs, R. T.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation

Model pyroxenes I: Ideal pyroxene topologies

Richard M. Thompson* and Robert T. Downs

Department of Geosciences, University of Arizona, Tucson, Arizona 85721-0077, U.S.A.

Correspondence: * E-mail: Thompson{at}geo.arizona.edu

Ideal pyroxenes are hypothetical structures based on ideal closest-packed arrangements of O anions. They are modeled after observed pyroxene structures and have the general formula M2M1T2O6, where M2 and M1 represent octahedrally coordinated cations, and T represents tetrahedrally coordinated cations. An algorithm has been created to construct all possible ideal pyroxenes based on closest-packed stacking sequences of length 12 or less. These structures are reported.

The only significant structural parameters that vary between different ideal pyroxenes are the M1-T and M2-T distances. We show that the repulsive forces between these pairs of cations distinguishes the energetics of the ideal pyroxenes and may be important in determining the topologies of observed pyroxenes.




This article has been cited by other articles:


Home page
 American MineralogistHome page
S. Jahn and R. Martonak
Phase behavior of protoenstatite at high pressure studied by atomistic simulations
American Mineralogist, July 1, 2009; 94(7): 950 - 956.
[Abstract] [Full Text] [PDF]

Home page
 American MineralogistHome page
A. Ullrich, R. Miletich, F. Nestola, C. Weikusat, and H. Ohashi
Lattice compression and structural behavior of NaVSi2O6 clinopyroxene to 11 GPa
American Mineralogist, April 1, 2009; 94(4): 557 - 564.
[Abstract] [Full Text] [PDF]

Home page
 American MineralogistHome page
F. Nestola, G. J. Redhammer, M. G. Pamato, L. Secco, and A. Dal Negro
High-pressure phase transformation in LiFeGe2O6 pyroxene
American Mineralogist, April 1, 2009; 94(4): 616 - 621.
[Abstract] [Full Text] [PDF]

Home page
 American MineralogistHome page
S. Jahn
High-pressure phase transitions in MgSiO3 orthoenstatite studied by atomistic computer simulation
American Mineralogist, April 1, 2008; 93(4): 528 - 532.
[Abstract] [Full Text] [PDF]

Home page
 American MineralogistHome page
A. C. McCarthy, R. T. Downs, and R. M. Thompson
Compressibility trends of the clinopyroxenes, and in-situ high-pressure single-crystal X-ray diffraction study of jadeite
American Mineralogist, January 1, 2008; 93(1): 198 - 209.
[Abstract] [Full Text] [PDF]

Home page
 American MineralogistHome page
H. Yang and R. T. Downs
Synthesis and crystal structure of Li0.52Mg0.96Sc0.52Si2O6 orthopyroxene
American Mineralogist, January 1, 2007; 92(1): 225 - 228.
[Abstract] [Full Text] [PDF]

Home page
 American MineralogistHome page
R. M. Thompson, R. T. Downs, and G. J. Redhammer
Model pyroxenes III: Volume of C2/c pyroxenes at mantle P, T, and x
American Mineralogist, November 1, 2005; 90(11-12): 1840 - 1851.
[Abstract] [Full Text] [PDF]

Home page
 Can MineralHome page
M. Tribaudino, F. Nestola, and C. Meneghini
RIETVELD REFINEMENT OF CLINOPYROXENES WITH INTERMEDIATE Ca-CONTENT ALONG THE JOIN DIOPSIDE ENSTATITE
Can Mineral, August 1, 2005; 43(4): 1411 - 1421.
[Abstract] [Full Text] [PDF]

Home page
 Eur J MineralHome page
M. TRIBAUDINO, F. NESTOLA, and H. OHASHI
High temperature single crystal investigation in a clinopyroxene of composition (Na0.5Ca0.5)(Cr0.5Mg0.5)Si2O6
European Journal of Mineralogy, April 1, 2005; 17(2): 297 - 304.
[Abstract] [Full Text] [PDF]

Home page
 American MineralogistHome page
P. H.J. Mercier, R. J. Evans, and D. G. Rancourt
Geometric crystal chemical models for structural analysis of micas and their stacking polytypes
American Mineralogist, February 1, 2005; 90(2-3): 382 - 398.
[Abstract] [Full Text] [PDF]

Home page
 American MineralogistHome page
R. M. Thompson, R. M. Thompson, and R. T. Downs
Model pyroxenes II: Structural variation as a function of tetrahedral rotation
American Mineralogist, April 1, 2004; 89(4): 614 - 628.
[Abstract] [Full Text] [PDF]

Home page
 Eur J MineralHome page
H. SOWA and E. KOCH
Quantification of the deviations from closest sphere packings
European Journal of Mineralogy, April 1, 2004; 16(2): 255 - 260.
[Abstract] [Full Text] [PDF]

Home page
 American MineralogistHome page
M. J. Origlieri, R. T. Downs, R. M. Thompson, C. J.S. Pommier, M. B. Denton, and G. E. Harlow
High-pressure crystal structure of kosmochlor, NaCrSi2O6, and systematics of anisotropic compression in pyroxenes
American Mineralogist, July 1, 2003; 88(7): 1025 - 1032.
[Abstract] [Full Text] [PDF]


JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2009 by Mineralogical Society of America