クリストバル石 / Cristobalite
Octahedra: quartz pseudomorph after cristobalite
Sphere: chalcedony
愛媛県久万高原町高殿
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Uploaded on December 25, 2017
Octahedra: quartz pseudomorph after cristobalite
Sphere: chalcedony
愛媛県久万高原町高殿