Fossil?

[Jfire45]

I think this is a skull is there a way to test if it is bone


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[Red-Coat]

Welcome to Tnet.

The most reliable ways are general examination for anatomical features consistent with a skull, and closer examination for cellular structure consistent with bone. Zooming in, I don't see evidence for either. It appears to me to be part of the broken shell of a hollow semi-crystalline geode of purely geological origin.

 

[flinthunter]

Looks like quartz, definitely not a skull. Maybe part of a geode.

 

[invent4hir]

Jfire45, welcome to Tnet! I agree with the others re: non-bone ID.

 

[Treasure_Hunter]

Welcome to TreasureNet. Looks like quartz maybe geode.