Interesting Things From Around The Internet #3: The Opal Crab Claw
This is the third post of my “Interesting Things From Around The Internet” series. If you missed the first two, I link to them at the bottom of the post.
Stumbling around the internet this week, I ran across this fossil that I found to be absolutely incredible. It’s a crab claw from long ago which has completely turned into opal!
Now, from what I’ve learned, opalized fossils are not all that rare. However, an opalized crab claw that’s completely intact is quite rare, which makes this find even that more interesting.
According to GeologyIn.com, Opal generally known to form inside cavities within rocks. But if a cavity has formed as a result of a bone, shell or pine cone being buried in the sand or clay that later solidified and became rock, and the conditions were right for opal formation, then the opal forms inside that cavity instead. The result is a fossil replica of the original object that was buried.
More common types of opal fossils you would see are from partial structures such as bone, seashell or wood (petrified wood).
What’s the most interesting fossil you’ve found? I think stumbling across an intact crab leg that’s turned into opal would probably be a lifetime high!
Be sure to check out some of the other interesting things from around the internet that I’ve stumbled across! And when you do, please share it with others who love these interesting kinds of finds!