Re: Ph of rocks??

[IDMiamiBob@aol.com]

Gooch writes:

> Does anyone know of a site that lists the PH of rocks??
>  
>  I was going to add some rocks to the tank but decided to test them first..
>  glad I did.
>  
>  Sandstone PH 6.0
>  Concrete  PH 8.?
>  Unidentified Reddish rock PH 6.5
>  
pH is the measure of the concentration of H+ ions in WATER.  It does not 
apply to rocks.  Water will dissolve certain chemicals in the rock and its pH 
will change acording to the ions added to it.

Bob Dixon


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