Thread: Unknown stone

In the pictures it looks like green-gray but it is actually a little bit darker, it is very smooth and it makes a white slurry.
I cut one of the ends to make a slurry stone, I used a hacksaw and it was pretty soft and easy to cut. When I got it, it had some very visible saw marks on the sides. The dimensions are 7 in long, 1 1/2 wide, and 3/4 thickness. I have a Thuringian which is about the same size, but the Thuringian is green. The unknown stone feels as smooth as the thuringian. Thank you.