Hi Gary, I am responding to your closed forum: Like a claw fossil or something. Your picture is upside down. Clean up your rock with a steel welding brush to remove the mineralized dirt and oxidation. This will bring out all the colors. I can see from your photos that the inside of this rock where it is exposed is agatized. A product of fast fossilization. From what I can see, you don't have a claw, rather, you have a turtle's front flipper. Hope this message finds you. Greg