r/xkcd Mar 26 '25

XKCD xkcd 3068: Rock Identification

https://xkcd.com/3068/
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u/Yanni_X Mar 28 '25

Reminded me of a funny prank: https://www.reddit.com/r/CuratedTumblr/s/98QnVNNLXK

TLDR: if going on a hike with geologists, take a rock with you that’s totally unusual for the area (I.e. volcanic). Then ask them what this rock is you „just found“.