Sweet! The Canadian shield is pretty cool! As an aside, this is Precambrian rock. Paleozoic is the name of the "Stone Age", starting around 3 Ma (million years ago) with hominids inventing stone tools. The Precambrian was approx 4.6 Ga (billion years ago) to 538 Ma. The exposed Canadian shield is roughly 2.5 to 4.2 Ga, depending on location.
this post was submitted on 08 Jul 2026
52 points (100.0% liked)
Cool Rocks
674 readers
3 users here now
A place for:
- Sharing cool rocks you found
- Discussing cool rocks
- Memeing about rocks
- Sharing rock facts
- Cool rocks
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 7 months ago
MODERATORS
You're right! I got my words mixed up. Thanks for the correction.
Happy to help! I was really hoping it was a simple mixup and not someone thinking the earth was 5,000 years old haha
Oh god no.