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Hyalite-like spherules produced from silica-saturated hydrothermal fluid

Hyalite is a clear amorphous hydrous silica with spherical or conchoidal shape related to volcanic fluids. In this study, hydrothermal reaction of powdered andesite with silica-saturated fluid at 250°C produced clear spherules of pure SiO<sub>2</sub> with quite a similar shape and texture to natural hyalite.

[Chairperson]<br />Noriyoshi Tsuchiya: S2-01 - S2-09

日本鉱物科学会年会

2022 Annual Meeting of Japan Association of Mineralogical Sciences (JAMS)

2022 Annual Meeting of Japan Association of Mineralogical Sciences (JAMS)

[S2-03]Hyalite-like spherules produced from silica-saturated hydrothermal fluid

Keywords: