Abstract
The crystal structure of Ca1.00Sc0.84Ti0.27Al1.16Si0.78O6 pyroxene grown by the floating zone method has been refined by the least squares method using 741 reflections measured on an automatic single crystal diffractometer. The unweighted R factor is 0.027 for 670 unrejected reflections. The cell dimensions are; a0=9.925A;, b0=8.949A, c0=5.460A, β=105.77°, and V=466.75A3; space group C2/c. The octahedral (M1) site is occupied by Sc (84 at.%) and Ti (16 at.%). Within the tetrahedral (T) site, Si (36.5 at.%), Al (58 at.%) and Ti (5.5 at.%) ions are completely disordered. These facts mean that Al-O-Al bonds exist in this pyroxene chain and the aluminum avoidance rule has been violated in this structure.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
