Any ideas on what kind of sharpening stone this is.

[aaron.steele.9026]

I bought this stone at a flee market for $8 thinking that it was just a soft Arkansas. I got it home cleaned it up and found out that it was as smooth as my #102 razor hone on its face. The back was just cut and glued to a box so it was never faced. I threw some oil on it and tried sharpening a kitchen knife with it and it polished out the edge rather well. Dose anyone know what this stone is.

 

[HeavyHanded]

Looks like a hard Arkansas to me, and in good shape!

 

[aaron.steele.9026]

I always thought they where darker than that