On the beach in Northern California.
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Seems like a serpentine-type. Black, glossy, intrusive with non-conchoidal fracture planes.
Thanks!
Possibly serpentinite.
Thank you!
On the beach in Northern California.
Seems like a serpentine-type. Black, glossy, intrusive with non-conchoidal fracture planes.
Thanks!
Possibly serpentinite.
Thank you!