Thread: I found a good Turkey stone

If one takes speed of cutting/polishing as a function of 'stone roughness', or the size of abrasive particle of a particular hone

speed of cutting/polishing=f(rougness, size of abrasive)

Let's say,s= f*10 for the coticule I have. I think s= f*30 or more for this Turkey stone.

Better pictures, colors are still mess though (black turned into gray, yellow color still unvisible):

Smooth side, obviously needs lapping:


The back side which I think belongs to some other rock:

your pictures are not the best quality but i do think this is very fine turkey oilstone.