Wood Fossil Boulder Opal
Natural wood fossil boulder opal, also called opalized wood, is a premier geological phenomenon where organic prehistoric vegetation has been entirely replaced cell by cell by precious opal silica over millions of years. Formed within the Cretaceous Winton Formation of Queensland, these stones preserve ancient wood grain, bark textures, and growth rings in solid precious opal. Every specimen in this collection is 100 percent natural and untreated.
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Prehistoric Vegetation Preserved in Precious Opal
Mined within the Cretaceous formations of Queensland, these specimens preserve original wood grain, cellular structures, and growth rings in solid precious opal. Discover more about our company background and passion for rare stones on our about us page.
Frequently Asked Questions
What is wood fossil boulder opal?
It is ancient organic wood entirely replaced by silica over millions of years, preserving natural grain structures.
Does wood fossil boulder opal show color play?
Yes, our curated selection focuses strictly on fossilized wood containing bright precious opal color play.
Is wood fossil boulder opal treated?
No, all fossil specimens in our collection are completely natural, untreated, and ethically sourced.