Abstract
The crystal structure of anhydrous phase X with composition K1.93(Mg2.02Cr0.02)Si2.00O7 was refined by means of X-ray diffraction analysis of a single-crystal synthesized at 16.5 GPa and 1700 °C. The structure is trigonal with space group P31m and the cell parameters are a = 5.0756 (1), c = 6.5969 (2) A, and V = 147.179 (6) A3. The structure is closely related to those of the space group P63cm, which have previously been identified to have hydrous and anhydrous phase X's. However, these differ in the arrangements of Si2O7 groups and MgO6 octahedra.
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: Journal of Mineralogical and Petrological Sciences
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.
