Arkansas?

[Disburden]

So I picked up this stone on the bay because I liked the coffin box it was in and I thought maybe I would get lucky with something special, it was ten bucks, no biggie. The stone smells of oil and water beads right off the stone. It was almost entirely black before I lapped the top surface of it, now it's a brownish red color. The stone is 9 inches long and about 1 3/4 wide without the casket box. It also had a lid for the box:

After lapping.

This is an unlapped side:



Without the box:



Thanks for the input guys!