Re: Rocks

["David Soares" <apistodave@bendcable.com>]

So there all ye who would spare the battery and harden the fish!!!!!!!!
Soft Water Dwarf Cichlids
David Soares & Uwe Romer
14697 S Bluegrass LN
Sisters Or    97759
apistodave@bendcable.com
www.apistogrammaidiots.com
----- Original Message -----
From: "Mike & Diane Wise" <apistowise@fgn.net>
To: <apisto@listbox.com>
Sent: Monday, June 24, 2002 7:58 AM
Subject: Re: Rocks


> I'll add to what others have said. Having been a
> minerals exploration geologist for 10 years, I
> think I can add some caution to what has been
> said. Vinegar is a weak acid. On some carbonate
> bearing rock like dolomite it will not react
> without scraping part of the rock into powder.
> Dave uses sulfuric acid which is much stronger &
> will react without any extra scraping. Geologists
> use hydrochloric acid for this purpose. Muriatic
> acid can be found at hardware stores. This is an
> industrial grade of hydrochloric acid.
>
> Even non-calcareous rocks can be dangerous. Many
> have heavy metals that can leach out and be toxic
> to fish. Most volcanic rocks are OK, but rock with
> blue, green, & yellow colored minerals should to
> be used with great caution. Those that show
> metallic grains need to be avoided, too. My
> philosophy is 'when in doubt, throw it out'.
>
> Mike Wise
>
> JerrCarol@aol.com wrote:
>
> > In a message dated 6/23/2002 2:58:28 PM Eastern
> > Daylight Time, r_pooley@hotmail.com writes:
> >
> >
> >
> >> If the vinegar trick works on sand....will it
> >> also work on rocks to see
> >> if they will change your Ph? I also don't have
> >> a supply of car batteries
> >> like Dave does. Rich
> >
> > Yes,... that is where I first heard of it being
> > used was to test a rock. Maybe one of the
> > resident chemist will explain why vinegar can be
> > used to tell if the rock has a pH raising
> > quality. The only test I remember from school
> > was adding vinegar and baking soda would
> > actually blow out a fire.
> >
> >
> > JerryB
>
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