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Fossil or mineral

ZinaBeth

By ZinaBeth
in Fossil ID

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ZinaBeth New Member

ZinaBeth

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Cheboygan Michigan they look like brains, I find them from baseball to basketball sizes. I broke one up with a sledge hammer, the center gets more dense. The out side seems to house shells? 

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abyssunder Regular Member

abyssunder

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Hard to say for sure, but maybe there are cemented gastropod and brachiopod/bivalve remains.

" We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. "

Thomas Mann

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