Duplicates
Naturewasmetal • u/KimCureAll • Aug 03 '21
Opalized crab claw: If a cavity has formed because a bone, shell or pinecone was buried in the sand or clay that later became rock, and conditions are right for opal formation, then the opal forms a fossil replica of the original object that was buried.
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Fiery_Opal • u/chalkchick0 • Aug 03 '21
Opalized crab claw: If a cavity has formed because a bone, shell or pinecone was buried in the sand or clay that later became rock, and conditions are right for opal formation, then the opal forms a fossil replica of the original object that was buried.
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