Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences
2018 Annual Meeting of Japan Association of Mineralogical Sciences
Session ID : R2-P07
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Host: Japan Association of Mineralogical Sciences

R2: Crystal structure, crystal chemistry, physical properties of minerals, crystal growth and applied mineralogy
Distribution of Mn and Fe in the axinite mineral group
*Daitaro Kitahara, Kazumasa Sugiyama, Hiroshi Arima, Takashi Mikouchi
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Keywords: Axinite, XAFS, AXS
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Abstract
Axinite contains Mn and Fe which are difficult to identify. This mineral has center of symmetry, but has piezoelectricity and pyroelectricity. These properties are thought to expressed by orderly arrangement of Mn and Fe, so we aimed to determine the distribution of these elements by using XAFS and AXS method.
According to XAFS, Mn exists almost as Mn2+, Fe in axinite having large total amount of Mn and Fe partly existed as Fe3+. By the AXS, we succeeded to visualizing the distribution of Fe.
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© 2018 Japan Association of Mineralogical Sciences
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