Thread: HAD PEOPLE LET'S resolve this challenge?

This is i have gotten Thank you to Randy.
I have test this stone and it gives result which i wasn't expecting . 1 of the finest edges.
characteristics
Very hard stone.
hard to lap.
150 dmt took me 20 mintes lapping i did get no wehere
strange shape.
Thick
doesn't leave any scratches on the blade. while i use 100x magnification,
color is almost milky and slurry is same.
had some cracks,
fast cutter any of my finishing stones.
size is 2,5 wide and 7 inch long add shape.
Seems like used only with water before me.

What i know is
This stone doesn't belong none of the below.
Escher;s. coticule, charnley forest, Arkansas, Nakayama, Turkey oil stone
Rest i don't know.
i will post pictures. i show
pictures include edges it may help to identify.
Lets hope some one knows about it.