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Limestone chert or what is this

I found this limestone with a chert stick through it in a local sandpit.
I find many odd things here. But I only found 1 of these.
It looks like chalk sticking through the formed limestone(?)
Any ideas?
Thank you
Rocks Rock
Janice

From Janice - July 13, 2010 at 08:26:41
Email:

Message: 69207



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