this post was submitted on 16 Feb 2026
37 points (95.1% liked)

Cool Rocks

507 readers
2 users here now

A place for:

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.

founded 3 months ago
MODERATORS
 

I found it hiking near Lethbridge, Alberta years ago, just found it again while going through old boxes. The wavy lines look kind of organic, but I don't know about the rest.

top 20 comments
sorted by: hot top controversial new old
[–] aeronmelon@lemmy.world 26 points 1 month ago

Day old Popeye’s Chicken Biscuit.

[–] chemical_cutthroat@lemmy.world 7 points 1 month ago (1 children)
[–] FoxyFerengi@startrek.website 9 points 1 month ago

Mountain oyster has a different meaning haha

[–] pennomi@lemmy.world 6 points 1 month ago

It doesn’t look like any fossil I’ve seen before. But it’s certainly strange! I would take it to a university and see what they know.

[–] hesh@quokk.au 5 points 1 month ago

Forbidden ice cream sandwich

[–] phonics@lemmy.world 2 points 1 month ago (1 children)

If that crack goes all the way around. Give it a good wack with a hammer on the seam and it should pop open for you to show you whatever is hidden in the middle. (If there is a fossil in there). Often times it's just empty but you never know. If it looks like it contains something take it to a specialist instead of trying to clean it up yourself.

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

I don't want to hurt the squiggles :(

[–] phonics@lemmy.world 4 points 1 month ago (1 children)

You won't. Just tap it to loosen it. Don't smash it to obliterate it. Also put on some protective eyewear and maybe gloves. Don't want ancient shards in your body

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

Fine! Maybe. My curiosity is greater than my attachment.

[–] phonics@lemmy.world 3 points 1 month ago (1 children)

Yeah boi! Can you reply to me with a pic of what's inside so I don't miss it?

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

I will! But it might be a while. I found it in a box when visiting my parents. Put it back in the box before I left.

[–] phonics@lemmy.world 1 points 1 month ago (1 children)
[–] Wren@lemmy.today 1 points 1 month ago

That was delightful, thank you.

[–] Kolanaki@pawb.social 2 points 3 weeks ago

It looks like 2 pre-made frozen beef patties separated by a sheet of paper, but it's super incredibly freezer burnt.

[–] jamesrandysghost@lemmy.zip 2 points 3 weeks ago (1 children)

That layer that runs through the middle, does it flake apart easily or is it pretty solid?

I've got a couple pieces that remind me of this, I'll dig them out and see if my memory serves me right.

[–] Wren@lemmy.today 2 points 3 weeks ago

Do share them! It's pretty solid. I can't conduct further investigation until I'm visiting my folks again.

[–] RizzRustbolt@lemmy.world 1 points 1 month ago

Smack Barm.

No pey wet.

[–] PumaStoleMyBluff@lemmy.world 1 points 1 month ago

The waves look very regular to me, maybe something like this? https://au.grandado.com/products/plastic-garden-edging-fence-border-green-corrugated-landscape-tidy-lawn-divider-prevent-overgrowth-of-grass-newest?variant=UHJvZHVjdFZhcmlhbnQ6ND

Not sure how multiple layers would break in a cross section. Maybe sediment plus freezing could make it brittle?

[–] mindbleach@sh.itjust.works 1 points 1 month ago

A McFish after two days in the refrigerator.

[–] pseudo@jlai.lu 1 points 1 month ago

A cheeseburger.