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09-30-2014, 11:34 PM #12
- Join Date
- Sep 2013
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- NW Indiana
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Thanked: 246Don't have any of those, but I can probably get some muriatic acid from where I used to work - think they have a jug. I've also read that some limestones need to be crushed to show much reactivity, so I'll try that too. Would granite give me any idea of hardness? I have some of that around.