this post was submitted on 14 May 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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Holey rock (lemmy.today)
submitted 3 months ago by Jerb322@lemmy.world to c/cool_rocks@lemmy.today
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[–] Kolanaki@pawb.social 23 points 3 months ago

Looks kinda like a wasp nest.

[–] Jerb322@lemmy.world 19 points 3 months ago

Light makes it all the way through.

[–] Linktank@lemmy.today 16 points 3 months ago (5 children)

Petrified honeycomb?

[–] Onomatopoeia@lemmy.cafe 22 points 3 months ago* (last edited 3 months ago)

Looks more like a wasp nest.

If OP hadn't said "petrified" it looks just like a paper wasp nest - that color and curve.

But I could be wrong, really cool though! I'm only a little jealous

[–] Jerb322@lemmy.world 11 points 3 months ago* (last edited 3 months ago) (1 children)

I think maybe corral...it's got a slight curve to it.

[–] Linktank@lemmy.today 3 points 3 months ago

Sometimes things do that if they transition phases slowly. One side drying faster than the other for example.

[–] Dozzi92@lemmy.world 4 points 3 months ago (1 children)

I immediately thought of the cereal, which I haven't seen in ages.

[–] Jerb322@lemmy.world 3 points 3 months ago

Honey Comb was one of my favorites!

[–] otter@lemmy.dbzer0.com 3 points 3 months ago

That's what I clicked through to say. 🤓

[–] BarneyPiccolo@lemmy.cafe 3 points 3 months ago

Just coral. It's always coral.

[–] Wren@lemmy.today 9 points 3 months ago

This looks a lot like pieces of coral my family brought back from costa rica. Very cool find.

[–] residentoflaniakea@discuss.tchncs.de 6 points 3 months ago (1 children)

Neat. Where did you find it?

[–] Jerb322@lemmy.world 11 points 3 months ago (1 children)

At a cellular tower site. I have small periods of time, throughout the day, that I can stare at the gravel. Rooftops can be a good spot to look, as well.

[–] WhyIHateTheInternet@lemmy.world 5 points 3 months ago (1 children)

That's gotta be a wasp nest

[–] Jerb322@lemmy.world 6 points 3 months ago (1 children)

If it is, it's petrified.

[–] WhyIHateTheInternet@lemmy.world 16 points 3 months ago

I would be too. Wasps are scary.

[–] Sendpicsofsandwiches@sh.itjust.works 6 points 3 months ago

That's really neat, I've never seen anything quite like that

[–] too_high_for_this@lemmy.world 5 points 3 months ago

Fossilized coral! I found a piece like that on a beach in Florida once.

[–] ClockworkOtter@lemmy.world 5 points 3 months ago

Urgh...

Trypophobia trigger

[–] cristo@lemmy.world 4 points 3 months ago

Looks like a piece of someone's catalytic converter

[–] geekwithsoul@piefed.social 4 points 3 months ago

Yeah, that's a bit of coral

[–] spinne@sh.itjust.works 4 points 3 months ago

Awesome rock!

[–] P00ptart@lemmy.world 3 points 3 months ago (1 children)

Somehow this doesn't set off my trypophobia.

[–] Hupf@feddit.org 2 points 3 months ago

Holy bartender

[–] HikingVet@lemmy.ca 2 points 3 months ago (1 children)

I've seen ceramic in industrial applications that kind of look like this, but I'm not seeing any pores in the material though.

[–] HikingVet@lemmy.ca 2 points 3 months ago (2 children)

howln4hoech@ttrpg.network is a stalker and vote manipulator.

@lwadmin@lemmy.world @eerongal@ttrpg.network @otter@lemmy.ca @mrmanager@lemmy.today

[–] Wren@lemmy.today 7 points 3 months ago

That's not very cool rocks of them.

[–] in_my_honest_opinion@piefed.social 3 points 3 months ago (1 children)

I don't see those people in this thread, and you replied to yourself. Was this intentional?

[–] HikingVet@lemmy.ca 4 points 3 months ago (1 children)

Yes. I have a stalker and this is to alert several admins at once.

[–] HikingVet@lemmy.ca 2 points 3 months ago* (last edited 3 months ago)

firefly754@ttrpg.network is a stalker and vote manipulator

@lwadmin@lemmy.world @eerongal@ttrpg.network @otter@lemmy.ca @mrmanager@lemmy.today @SkyyHigh@ttrpg.network @sirblastalot@ttrpg.network