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