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Large coral from northern Michigan


Eastonian

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Two weeks ago, I visited the Carmeuse Calcite Quarry in Rogers City, Michigan (Devonian). I spent an hour trying to dig under and around this specimen. With the help of another, I was able to dislodge it. It weights about 60 pounds and the top surface measures 38 cm x 43 cm. Looks like a Hexagonaria pericarinita, though am not sure. 

Roger City coral.jpg

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Nice Hexagonaria!  That's "farm fresh" and how they start out before glaciers and water turn them into "Petosky stones"

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Nice specimen!  I would wonder what it might look like after a little media blasting (soda perhaps). Dave 

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Sorry. I don't know what media blasting is. Isn't that what our president does? (ha ha) All I've done is use a thick paint brush with short bristles, and scrub it using nothing more than a mild household liquid detergent.

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