Unknown Mine Kiita Nashiji Awasedo Fine Grit Japanese Natural Sharpening Stone 1lb. 2.5oz. (524g) 184mmX65mmX12-14mm
***The weight of the stone is included in the wooden block***
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#6000 to #10000 for medium range in the fine grit for high carbon blade
It should be well used, because it was very good stone, and it is thin stone, but the wooden block looks brand new. It might be originally thin stone or the second owner put on the brand new wooden block that I do not know it.
I do not know which mine it derived from, and it has beautiful Kiita with Nashiji all over sharpening surface.
It raises very good amount of black color slurry quickly. It is not too hard and not too soft. 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)
Particle Size----------9.0 It might feel little sticky on a few darker spots on the sharpening surface, but they do not make scratches. It makes my white II steel kasumi kiridashi blade knife Hagane became from semi-mirror finish to mirror finish. Jigae became kind of dark frosted color 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 the 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.