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post #8 of (permalink) Old 05-10-2011, 04:09 AM
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Join Date: Mar 2011
Location: AZ
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Originally Posted by SaraAZ View Post
It depends. Arizona has A LOT of red stone I've took a few hundred pounds of slightly banded red agate from Fourth of July Butte. Pretty inert. Some things are sandstone, some things are not. Like Ben said, do the vinegar or muriatic acid test.
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