Complete Fe-Mg solid solution in lithium niobate and perovskite structures in titanates at high pressures and temperatures

Other| June 01, 1997 Complete Fe-Mg solid solution in lithium niobate and perovskite structures in titanates at high pressures and temperatures Jennifer A. Linton; Jennifer A. Linton Carnegie Institution of Washington, Geophysical Laboratory and Center for High Pressure Research, Washington, DC, United States Search for other works by this author on: GSW Google Scholar Yingwei Fei; Yingwei Fei Search for other works by this author on: GSW Google Scholar Alexandra Navrotsky Alexandra Navrotsky Search for other works by this author on: GSW Google Scholar American Mineralogist (1997) 82 (5-6): 639–642. https://doi.org/10.2138/am-1997-5-624 Article history first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Jennifer A. Linton, Yingwei Fei, Alexandra Navrotsky; Complete Fe-Mg solid solution in lithium niobate and perovskite structures in titanates at high pressures and temperatures. American Mineralogist 1997;; 82 (5-6): 639–642. doi: https://doi.org/10.2138/am-1997-5-624 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu nav search search input Search input auto suggest search filter All ContentBy SocietyAmerican Mineralogist Search Advanced Search Abstract A new high-pressure MgTiO3 phase with the lithium niobate structure (R3c) has been recovered from experiments at 21 GPa and 1200 °C. Phases with the lithium niobate structure were also synthesized for intermediate compositions between FeTiO3 and MgTiO3 and their lattice parameters determined. Previous thermodynamic calculations indicated the stable FeTiO3 phase at high pressure has the perovskite structure while the lithium niobate polymorph is a metastable quench phase. This suggests that these magnesium-iron titanates with lithium niobate structures may also be metastable quench phases from perovskite. This example of a complete solid solution between Fe and Mg in the lithium niobate structure probably reveals a case of complete solid solution between Fe and Mg in the A sites of the perovskite structure. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not currently have access to this article.