Neat rock- any geology enthusiasts know what kind it is?

On the beach in Northern California.

25 points · 4 comments · view on lemmy.world

4 Comments

sethboy66@lemmy.world · 7 pts · 3y (1 reply)

Seems like a serpentine-type. Black, glossy, intrusive with non-conchoidal fracture planes.

Thanks!

Cuzscience@lemmy.world · 6 pts · 3y (1 reply)

Possibly serpentinite.

Thank you!