John Macintosh on Nostr: Some of the oldest rock you have ever seen. Torridonian Group are a fascinating ...

Some of the oldest rock you have ever seen.

Torridonian Group are a fascinating geological feature.
They refer to a unique pattern of cracks filled with mineral veins in ancient rock formations.

These rocks date back to the Proterozoic era, over a billion years ago, which makes them some of the oldest exposed rocks in the world. #PastTimes

via Brian Roemmele from Twitter