this post was submitted on 17 Jan 2026
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Cool Rocks

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Minerals are cool, too.

Be gneiss to each other

Please use posts for your rocks. Feel free to add more pictures and links to articles in the post text.

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Weekly Discussion: What is the most useful rock? (lemmy.today)
submitted 2 months ago by Wren@lemmy.today to c/cool_rocks@lemmy.today
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Type, shape, historical significance, scientific merit...

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[–] HeyThisIsntTheYMCA@lemmy.world 9 points 2 months ago (1 children)

The most useful rock is this one we've got in our kitchen. It looks exactly like a potato. We've named it Kevin. It sits there in the fruit basket. Sometimes the cat (my favorite living cat) cuddles with him. Sometimes when we're peeling potatoes someone will add Kevin the Potato Rock to the pile as a prank. I fucking love Kevin.

Here's a picture of a potato I got off the internet. Or it might be Kevin and I'm fucking with you. Today it is Schrodingleheimer's Spud.

[–] Wren@lemmy.today 2 points 2 months ago (1 children)

I think you won.

[–] HeyThisIsntTheYMCA@lemmy.world 2 points 2 months ago (1 children)

I'm gonna set an alarm, but I promise to show y'all pictures of Kevin

[–] Wren@lemmy.today 2 points 2 months ago

Please oh please show us the real Kevin.

[–] Zorsith@lemmy.blahaj.zone 8 points 2 months ago

The moons a pretty cool rock. Gives us tides and stuff. Probably one of the biggest historical events of last century was putting stuff on it.

[–] mindbleach@sh.itjust.works 5 points 2 months ago (1 children)

Salt?

[–] Wren@lemmy.today 2 points 2 months ago

Oh yeah I forgot tasty.

[–] lagoon8622@sh.itjust.works 3 points 2 months ago

Ice?

[–] threelonmusketeers@sh.itjust.works 2 points 2 months ago

Iron ore?