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Halysites 'chain coral' from Silurian in Wisconsin, acid treatment


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I found this rock containing a Halysites 'chain coral' in the Silurian of Wisconsin.

I soaked it in diluted muriatic acid for a few hours to partially dissolve the matrix and reveal the silicified coral fossil.

Photos are before and after acid treatment.



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Very cool! 

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Invertebrate Fossil Of The Month??? Just hinting!!!!!

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Wow! That acid treatment certainly produced a beautiful specimen. There are few things as lovely as Halysites. Congratulations and thanks for sharing. 

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