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http://dx.doi.org/10.9727/jmsk.2011.24.3.195

Structure Refinement and Equation of State Studies of the Exsoluted Ilmenite-Hematite  

Hwang, Gil-Chan (Department of Earth and Environmental Sciences and Research Institute of Natural Sciences, Gyeongsang National University)
Kim, Young-Ho (Department of Earth and Environmental Sciences and Research Institute of Natural Sciences, Gyeongsang National University)
Publication Information
Journal of the Mineralogical Society of Korea / v.24, no.3, 2011 , pp. 195-204 More about this Journal
Abstract
Exsolution intergrowth of ilmenite and hematite was studied by the Rietveld refinement method. According to the analysis on these two structural analog minerals, it was found that octahedron (M2) of Ti in ilmenite is in the least deformation, then that (M1) of Fe in ilmenite is deformed next, and octaheron deformation of Fe in hematite is between M1 and M2. High pressure compression experiment was performed up to 5.8 GPa, where two minerals' XRD peaks merged completely. Ilmenite shows normal compression behavior, whereas hematite shrinks in very small amount. This kind of abnormal behavior might be due to the differential response to the applied pressure corresponding to the different compressibilities of the minerals each other.
Keywords
Exsolution; ilmenite; hematite; Rietveld refinement; compression; abnormal behavior;
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Times Cited By KSCI : 1  (Citation Analysis)
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