Thread: Many hours of cleaning... but what stone is this?

Hello good people,
I need your help. I got this stone and spent many hours cleaning it as it was very dirty and cover with oil like substance. However I made it to the end using many gallons kerosene.
I have started to lapping stone and this what has exposed to me. Stone is glued to wooden box permanently. I think it cant be removed from box. Stone is green color. Sometimes I think more like green-grey colors. Using DMT325 I was able to make slurry in no time. I had a hard time to remove DMT from stone when slurry was developed. It seems they two surface was glued together (DMT and stone) Surface is really smooth. To me will be about 8k+. Does any one know what stone is that? Here are the pictures.