2025 Annual Meeting of Japan Association of Mineralogical Sciences (JAMS)
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Oral presentationR2: Crystal structure, crystal chemistry, physical properties of minerals, crystal growth and applied mineralogy

R2: Crystal structure, crystal chemistry, physical properties of minerals, crystal growth and applied mineralogy

Thu. Sep 11, 2025 3:30 PM - 6:00 PM JST
Thu. Sep 11, 2025 6:30 AM - 9:00 AM UTC
Oral Presentation A (Room No. 2)
Chairperson:Kazuki Komatsu(UTokyo), Fumiya Noritake(Yamanashi Univ.)
3:30 PM - 4:00 PM JST(6:30 AM - 7:00 AM UTC)Invited Lecture

[R2-01]Local Structures and Properties of Amorphous Oxides: New Insights from Synchrotron X-ray Studies

*Koji Ohara1 (1. Shimane Univ. MAE.)
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4:00 PM - 4:15 PM JST(7:00 AM - 7:15 AM UTC)Student Presentation Award Entry

[R2-02]Investigation of conditions for synthesis of chibaite by hydrothermal experiments

*Yuta Furukido1, Yusuke Seto1, Atsushi Tani2, Shusuke Isogai2 (1. Osaka Metropolitan Univ. Sci, 2. Kobe Univ.Sci)
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4:15 PM - 4:30 PM JST(7:15 AM - 7:30 AM UTC)

[R2-03]Investigation for the formation conditions of metastable cristobalite by the flux method

Takehiro Shima1, *Kazuki KOMATSU1, Hiroyuki Kagi1 (1. The University of Tokyo)
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4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)

[R2-04]Nature of Si-Al disorder in natural and synthetic prehnite (Ca2Al2Si3O10(OH)2) clarified by multi-nuclear NMR and first-principles calculation

*Xianyu XUE1, Kanzaki Masami1, Jonathan F Stebbins2 (1. Okayama Univ. IPM, 2. Stanford Univ.)
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4:45 PM - 5:00 PM JST(7:45 AM - 8:00 AM UTC)

[R2-05]About Negative Thermal Expasion Mechanism of Keatite Crystal

*Fumiya NORITAKE1 (1. University of Yamanashi)
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5:00 PM - 5:15 PM JST(8:00 AM - 8:15 AM UTC)Student Presentation Award Entry

[R2-06]Thermal expansion behavior of mechanism of kurnakovite MgB3O3(OH)5·5H2O: high-temperature in-situ single crystal synchrotron radiation X-ray diffraction study

*Kosuke Yamaguchi1, Atsushi Kyono2, Maity Sumit3, Toshiyuki Sasaki3, Kouhei Ichiyanagi3, Yuiga Nakamura3 (1. University of Tsukuba, Degree Programs of Life and Earth Sciences, 2. University of Tsukuba, Faculty of Life and Environmental Sciences, 3. JASRI)
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5:15 PM - 5:30 PM JST(8:15 AM - 8:30 AM UTC)

[R2-07]Dehydration induced structure and density change of nesquehonite

*Ryo YAMANE1, Hiroshi Sakuma1, Kenji Tamura1 (1. National Institute for Materials Science)
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5:30 PM - 5:45 PM JST(8:30 AM - 8:45 AM UTC)

[R2-08]Thermal decomposition and reversible transition of ulexite NaCaB5O6(OH)6·5H2O

*Atsushi KYONO1, Kosuke YAMAGUCHI2, Satoru OKADA2, Hiroki HASEGAWA2 (1. University of Tsukuba, Faculty of Life and Environmental Sciences, 2. University of Tsukuba, Degree Programs in Life and Earth Sciences)
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5:45 PM - 6:00 PM JST(8:45 AM - 9:00 AM UTC)Student Presentation Award Entry

[R2-09]Microbial Carbon Sequestration: Investigating Cyanobacteria-Mediated Alkalinity and Carbonate Precipitation on Fe- and Mg-Bearing Substrates

*Veronica Rosa1, Sasha Wilson1, Maija Rausdepp1, Connor Turvey1, Arif Hussein1 (1. University of Alberta)
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