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Kummakivi is a 500.000 kg rock in Finland that has been balancing on another rock for 11.000 years(files.catbox.moe)

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Blaze@lemmy.blahaj.zone
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SeveralAnts@lemmy.world
4 points

Can anyone tell me why the bottom rock is so smooth? I imagine people come and sit on it and touch them both frequently, and that they are two rocks from different places but they each look very dissimilar. I guess what I am really asking, is the bottom rock so smooth because of the big boy topping it?

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disheveledWallaby@lemmy.ml
16 points

Likely glaciation, the bottom rock was likely on the bottom of an ice sheet and millions of tons of ice moving over it over time had smoothed it out.

The top rock is probably from many miles away and was carried and placed there from the receding glacier. To me the top rock looks like it is a completely different type of stone then the bottom.

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SeveralAnts@lemmy.world
1 point

Awesome. That would make sense.

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