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

Fri. Sep 12, 2025 9:30 AM - 12:00 PM JST
Fri. Sep 12, 2025 12:30 AM - 3:00 AM UTC
Oral Presentation A (Room No. 2)
Chairperson:Hiroaki Ohfuji(Tohoku Univ. ), Ryo Yamane(NIMS)
9:30 AM - 9:45 AM JST(12:30 AM - 12:45 AM UTC)

[R2-10]Attempts to synthesize nanocrystalline diamond at lower temperatures under ultrahigh pressure

*Tetsuo Irifune1, Takehiro Kunimoto1, Chinatsu Ogawa1, Sayako Inoué 1, Toru Shinmei1, Hiroaki Ohfuji2 (1. GRC, Ehime Univ., 2. Tohoku Univ.)
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9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)

[R2-11]Analysis of Antigorite in cleavable olivine by low dose high-resolution observation using OBF-STEM

*Gen Koinuma1, Kohei Sato1, Ichiro Ohnishi1, Naotaka Tomioka2,4, Jun-ichi Ando2,3 (1. JEOL, 2. Hiroshima Univ., 3. Hiroshima Univ., HiPeR, 4. JAMSTEC)
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10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)

[R2-12]Analysis of stacking faults in kaolin group minerals by low-dose and high-resolution imaging using OBF-STEM

*Hayato Miura1, Toshihiro Kogure2, Taiga Okumura2, Ichiro Ohnishi1 (1. JEOL Ltd., 2. Waseda Univ.)
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10:15 AM - 10:30 AM JST(1:15 AM - 1:30 AM UTC)Student Presentation Award Entry

[R2-13]Oriented growth of metal-organic frameworks on a single crystal of Cu2(OH)3HCO2

*Yuka Koseki1, Kenji Okada1, Arisa Fukatsu1, Masahide Takahashi1 (1. Osaka Met. Univ. Eng.)
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10:30 AM - 10:45 AM JST(1:30 AM - 1:45 AM UTC)

[R2-14]Dynamic process of extra-framework adsorbed chemical species in a largely Cs-exchanged natural Ca-chabazite studied by in-situ high-temperature single-crystal X-ray diffraction

Naomi Kawata1, *Akihiko Nakatsuka1 (1. Yamaguchi Univ. Sci. Tech. Inn.)
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10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)

[R2-15]Layer expansion process of layered-calcium phosphate during phase transformation

*Yuuki SUGIURA1, Etsuko Yamada1, Masanori Horie1 (1. National Institute of Advanced Industrial Science and Technology (AIST))
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11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)

[R2-16]Synthesis of siliceous potassic mineral fertilizer from weathered granite and K-feldspar

*Hiroaki OHFUJI1, Hiroki Ishida1 (1. Tohoku Univ. Sci.)
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11:15 AM - 11:30 AM JST(2:15 AM - 2:30 AM UTC)

[R2-17]Formation of amorphous calcium carbonate (ACC) in the cuticle of Armadillidium vulgare and the influence of mineral feeding

*Shumpei Tatsunami1, Atushi Kyono2, Satoru Okada1, Hiroki Hasegawa1, Kosuke Yamaguchi1 (1. University of Tsukuba, Degree Programs in Life and Earth Sciences, 2. University of Tsukuba, Faculty of Life and Environmental Sciences)
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11:30 AM - 11:45 AM JST(2:30 AM - 2:45 AM UTC)

[R2-18]Numerical modeling of the formation of oscillatory compositional zoning based on impurity-induced crystal growth inhibition

Hiroki Torii, *Hitoshi MIURA1 (1. Nagoya City Univ.)
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11:45 AM - 12:00 PM JST(2:45 AM - 3:00 AM UTC)

[R2-19]Symmetry for Japanase Origami

*Takeo MATSUMOTO1 (1. Kanazawa Univ.)
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