What Kind of rock might this be?

[NakedBee]

Found on a beach on Mackinac Island Michigan. It almost reminds me of lava rock but I do not think it is it seems more dense. I was also thinking it could be a chunk of old brick? Im not sure any one else know what it could be?

 

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[Back-of-the-boat]

It could be a piece of old brick or terra cotta or even some old native pottery, it would be to hard to determine as water has eroded it's original form.

 

[tamrock]

Might be an eroded piece of Ryolite. https://en.m.wikipedia.org/wiki/Rhyolite

 

[Charlie P. (NY)]

My first impression was a weathered bit of fired brick as well.

 

[NakedBee]

Thanks for all the help! I think I might have solved it for sure yesterday when searching on a beech in another location far from the original location. I found a bigger chunk that looks about the same. Im 99.9% sure its a Fired Brick as Charlie P. stated. If you have any other guesses or evidence of it being something else let me know, but I think I can put this as solved!

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