this post was submitted on 10 Jul 2025
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[–] DMCMNFIBFFF@lemmy.world 5 points 3 days ago (20 children)

wp:Density#Various materials

material ρ (kg/m3)
iron 7 870
copper 8 940
silver 10 500
lead 11 340
uranium 19 100
gold 19 320

Bismuth is also a popular substitute.

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