Beautiful Photo: Fossilized Snail Turned to Opal
Redditor Proteon posted this image of a fossilized... ...edditor Proteon posted this image of a fossilized snail turned to opal recently. Opal forms in cavities i... ...side rocks. If a cavity is created due to a bone, shell or pine cone being buried in the sand or clay tha...
https://www.neatorama.com/2014/12/08/Beautiful-Photo-Fossilized-Snail-Turned-to-Opal/
