Hematite?

[Georgivs]

This rock has been the subject of much debate among my friends. Bacteria? Algae? Worm tracks? Definitely seems like some sort of hematite.

 

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[Jay Plunder]

Maybe some sort of fossilized coral? Reminds me of brain coral.

 

[ANTIQUARIAN]

My first thought was a 'dehydrated Rice Crispy square'.

Dave

 

[Georgivs]

My first thought was a 'dehydrated Rice Crispy square'.

Dave

I tried it, tastes like blood. Definitely not rice crispy treats.

 

[Jason in Enid]

I think you are on the right track with the worm burrows