Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences
2009 Annual Meeting of Japan Association of Mineralogical Sciences
Session ID : R4-11
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Host: Japan Association of Mineralogical Sciences

R4: Mineral descriptions and analytical methods of earth and planetary materials
Analysis of aluminoceladonite included in green heulandite
*Reiko Murao, Kunio Yubuta, Ritsuro Miyawaki, Kazumasa Sugiyama
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Keywords: green heulandite, aluminoceladonite, Fe-K XANES, Gandolfi camera
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Abstract
Green heulandite (Nashik districts, India) was investigated to study its origin of color. Fe, Mg, K rich green inclusions were observed in the matrix of transparent heulandite crystals. The inclusion was determined as nano-crystalline of aluminoceladonite (Mica group) by transmission electron microscopy (TEM) together with energy-dispersive X-ray (EDX) analysis. Fe-K XANES spectrum shows most of Fe atoms in green inclusions are tri-valent state and octahedrally coordinated.
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© 2009 Japan Association of Mineralogical Sciences
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