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Electrolytic silver crystal
8 months ago in: Ag, ⅠB no comments
helium cube
8 months ago in: 0, He no comments
Osmium molten bead
8 months ago in: Os, Ⅷ no comments
Krypton sample
8 months ago in: 0, Kr no comments
Geiger silver
8 months ago in: Ag, ⅠB no comments