Last one I promise

[ZinaBeth]

Is it a bone? Found near the other one that looks like  bone in Cheboygan Michigan. 

[ynot]

Sorry, but not bone.

Looks like a chert nodule in sandstone.

[ZinaBeth]

Thank you, looks like my gravel pit was a place for coral to die. 

[Kane]

During the Devonian, much of Michigan, a good section of Southwestern Ontario, and parts of Western New York was an extensive series of coral reef ecosystems situated below the equator. In this part of the world you'll find coral fossils are massively abundant!  

[ZinaBeth]

Thank you, I am grateful for the input.