this post was submitted on 30 Dec 2025
178 points (97.3% liked)

Cool Rocks

465 readers
21 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 1 month ago
MODERATORS
 

You can have more than one favorite rock.

you are viewing a single comment's thread
view the rest of the comments
[โ€“] FrostyTrichs@crazypeople.online 7 points 1 month ago (1 children)

Probably Petoskey stone.

I discovered them while traveling through Michigan in the US and ever since they've been one of if not my favorite type of rock. There are some really beautiful polished examples out there, like this (not mine):

polished stone

[โ€“] Wren@lemmy.today 3 points 1 month ago

Great choice. One of my friends hunts for fossilized coral like that on Vancouver Island. Such a cool pattern.