So, I found this stone mantel behind the garage of the 100 year old house we just bought. It was mostly buried in the dirt. Fits our mantel perfect. Some sort of green stone. Was painted black at some point. I'm trying to strip the paint and want to refinish the stone. Area is southeast of Pittsburgh. Father of the man who built the house was an Italian stonemason that immigrated.
Don't think it's slate, has a tight grain and rings when you knock on it.
So, I looked it up and the description of Phyllite seems on point. Geology is super interesting!
Even more searching showed shale which also looks like a good candidate. Thanks for posting this. I have been curious about geology lately and this caused me to look this up.
That's slate. Very sure. It's a common building material (especially roofing) where it can look and act like that.
Shale is similar. I have a lot of shale deposits nearby, and I can say that stripping paint with a paintbrush would likely break little bits off of it. It's way to fragile to do anything with it. It would be exceedingly difficult to cut it to that shape and keep it that way, as well.
IDK, my son took the pictures for me. His phone has a better camera than mine. 98 Ranger XLT. It's my fourth vehicle, lifetime. Throws no codes, I keep it running tight.
Lemmy isn't letting me upload a better pic of it right now.
Shale is not a good building material, it’s too friable (crumbly). Slate starts off as the same rock ans shale except it undergoes a bunch of heat and pressure which makes it much less friable and an excellent material for things like roofing tiles and mantles.