Rocks from my yard

[ingg]

Meant for Ghaz, Kris.... this is the rock I was talking about in my back yard and the woods behind me.

[krisw]

I seem to remember more striations in the "Texas Fossil Rock." This could have some potential though.

But, Dave, can you break up about 500 pounds of your stuff for me, and deliver it to my doorstep? I'll test it out for you.

[DelawareJim]

Dave;

Your stone looks like a limestone/quartzite complex. You're in the right part of the country for it to be local. There's a band of limestone and quartzite that comes up the eastern foothills of the Appalachian chain through central Maryland and central/southeastern Pennsylvania. The limestone is from the ancient seabed deposits and the quartzite is from the last time North America bounced off the European and African continents creating the Appalachian chain. (If I remember my Earth Sciences and Paleo classes correctly.)

You may get some buffering or pH reaction from the stone. Easiest way to tell is put a piece in a bucket and pour some vinegar on it to test for bubbling.

Cheers.
Jim

[ingg]

I had some in a tank for a long time and never noticed buffering - I'll have to vinegar test it.

I want to say granite/quartz.

[Ghazanfar Ghori]

I don't know about you - but I like it!

[jcali10]

Doesn't it take something stronger like muratic acid for an acid test.

[krisw]

You can mix up a strong acid solution using Seachem Acid Buffer (powder form) to test.

[maddog10]

Lick it!
Did it burn?

Test complete.


Put some in a bucket for a couple of days and monitor pH and any other reading you care to test.