Narutaki Kiita Awasedo natural sharpening stone 2lb. 15.9oz. (1353.2g)
It is slightly used, and it has still a part of original sticker on the sharpening surface.
The original wooden block is stuck on the stone.
It has still the top side of original paper box.
It is described on Shohonyama Awasedo and Narutaki.
#4000 to #6000 for mid range in the fine grit stone
It looks it is soft side of fine grit sharpening stone, but it is not too soft.
It raises very good amount of black slurry quickly.
It looks that it does not need tomo nagura or the device to produce the slurry (worn Diamond lapping 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)
It makes my blue II steel Hon kasumi blade knife Hagane became frosted silver color, and Hagane became from frosted silver color to semi-mirror finish.
(Scale; 1 to 10, 1-3 give deep scratch marks to the steel, 3-5 is delete the 1-3 scratches, 5-8 makes 3the steel cloudy, 8-10 makes the steel semi-mirror finish or mirror finish)
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, and Hagane as suitable Hagane color. It is natural mystics.