@agatemagnet: Crab concretion!! I found this at twin beach in WA state which is near Murdock beach!! Such a perfect little crab fossil! I was looking at the rocks very hard trying to see if I notice anything different compared to the surrounding rocks, when I spotted this one I immediately started taking a video, I almost thought at first it was nothing but to my suprise I found what I came here for! Plus many other cool agates and concretions! Highly recommend WA state coasts for rockhounding, there's so many amazing things to be found!! Millions of years old BTW!Please like, Share, comment, and save. Thank you! #agate #rockhounding #carnelian #pnw #fyp