Adding rocks from outdoor!

[KristaButler]

Does any one know what kind of rocks these are? They pass the vinegar test.


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[KristaButler]

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[smithpants94]

My geology experience is telling me that those are slate.. should do well in a tank after a little scrub


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[54seaweed]

slate/shale is what they look like to me

 

[KristaButler]

Awesome. I've been researching them. I found that they are argillite, which I believe is another name for slate. There is a wonderful "rocks of North Carolina" website. Maybe those who are trying to identify their own rocks can look for a rocks of "state".

Thanks again. I think they will do well in my tank.


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[Delapool]

Just in case - if they are soft, I would soak one in a bucket for a few days and make sure it doesn't disintegrate. I had some nice fossils in mudstones that were soaked for me and completely fell apart.