Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences
2015 Annual Meeting of Japan Association of Mineralogical Sciences
Session ID : R2-P18
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Host: Japan Association of Mineralogical Sciences

R2: Crystal structure, crystal chemistry, physical properties of minerals, crystal growth and applied mineralogy
Cathodoluminescence in benstonite
*Hirotsugu Nishido, Nobuhiro Kusano, Syuhei Ohgo, Sota Noumi
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Keywords: benstonite, cathodoluminescence, emission center
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Abstract
Benstonite (Ba6Ca6Mg(CO3)13) shows a characteristic cathodoluminescence (CL) in a red region,  which can be assigned to an impurity center of divalent Mn ion. The wavelength of an emission band centered at 627 nm is slightly longer than those of emission bands in calcite and dolomite, suggesting its strong crystal-field (Dq) around Mn ion comparing with calcite and dolomite.
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© 2015 Japan Association of Mineralogical Sciences
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