About This Item
Renge Suita Japanese Natural Sharpening Stone 1104g (2lb. 7oz.)
I do not know It might be Ohira suita or Okunomon suita or somewhere else mine in Kyoto.
202mmX75mmX31mm It is lower side of the fine grit stone, and it is great for Jigane finish. It should be great for high carbon cooking knife or Japanese plane or chisel
It has beautiful renge pattern on the sharpening surface.
It raises good enough amount of black color slurry quickly. It looks fast cut stone in the fine grit stone.
(Scale; 1 to 10, 1-3 is very soft muddy rough grit whetstone 3-6 is soft medium grit whetstone, 6-8 is hard medium grit whetstone, 8-10 is fine grit whetstone)
Particle Size------ 8.4
(Scale; 1 to 10, 1-3 give deep scratch marks to the steel, 3-5 is delete the 1-3 scratches, 5-8 makes the steel cloudy, 8-10 makes the steel semi-mirror finish or mirror finish)
It makes my blue II steel blade knife Jigane to frosted gray color, and Hagane became frosted silver color finish.
Probably around from 4000 grit to 6000 grit. Natural whetstone has wider capacity than artificial whetstone, and actually, we do not know until sharpen blade on the hone for a while. Because artificial whetstone molecules do not break down to smaller sizes, but Natural whetstone molecules are possible to break down to smaller sizes, and those molecules are mixed with sharpened steel molecules, and make Jigane as suitable Jigane color (it also shows Damascus pattern vividly), and Hagane as suitable Hagane color. It is natural mystics.