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Posted in response to Re: ND Rock from jay on September 27, 2013 at 20:45:47:

Re: Re: ND Rock

Forgot to add, Francine, that a small drop of dilute HCl (hydrocholic acid, easily avilable at WalMart etc, under the name, The Works Toilet Bowl Cleaner) on the speciman will let us know if it is limestone. If it is, it will foam or bubble when the acid is applied.

Becky

From Becky Kelher - October 06, 2013 at 22:27:11

Message: 70817



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