I found these shards today and wonder if they are Indian. The large black piece I had to dig out of an embankment in the woods. The other shards were found around the area. The width is thin and they were found in eastern Kansas. Any thoughts on if they Indian would be great! Thanks!
-Tim
Appears to be old floor tile with black asphaltic mastic applied by trowel.....both probably contain asbestos, but are considered non-friable. Just don't grind it or sand it!