About This Item
AOTO Natural Sharpening Stone from Kameoka, Tanba 1698g (3lb. 12oz.)
200mmX55mmX55mm It should be around #1000 to #1500 grit (medium grit) Please click here to see more pictures
It raises more than good enough amount of slurry, and it is kind of hard side of Aoto.
(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--------- 7.6
(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)
My blue II steel blade knife Jigane became frosted dull silver color, and Hagane became bright silver color.
It was from Kameoka, Kyoto. It has been very hard to find nice Aoto nowadays since all Kameoka mines had closed years ago, and the most of whetstone companies run out of Aoto stock now.
AOTO whetstone from Kameoka, Kyoto is very famous as Tanba no Aoto in Japan as medium to medium high. It has been mined from Kameoka , Kyoto since Muromachi era (1338-1573).
Natural whetstone has more wide capacity than artificial whetstone, and actually, we do not know until sharpen blade on the stone. Sometimes, treasure whetstone is found after used it for a while. Never know until then.