Hardness Grit/Finess Speed/Strength Price in U.S.
9+ 10 9+ SOLD
When used with a paste created by a diamond plate
9+ 10 10
A beautiful light color kiita with a bit of blue in the lower portion of the top. For a hard stone this one
is a delight to use and will produce a slurry over time without a diamond nagura. This is a world
class stone that will create a bright mirror polish to the hagane and to the soft iron jigane a
contrasting kasumi hazy soft mirror finish. The more you use this stone the more you will get out
of it, these old mine stones from the 1930s have a microns thin skin that once you sharpen
through it will make the stone easier to use.
Reads on the stone top from the upper right down, JUN SHOSHIN HONYAMA (pure specially
chosen original mountain) which is a registered trade name,
And 23 (an inventory or grading number)
And at the middle SAIKOKYUHIN (very best quality)
Marked faintly on the end of the stone in a rectangle KA SHO HON YAMA* (Maruka correct true
This Nakayama Maruka awasedo toishi stone is NEW/OLD stock from a closed store in Japan. It
has not been used other than to test the quality at one edge of the stone as you can see in the
You may find other references to the Maruka Nakayama mines on the internet. This mine was
known throughout its history to produce the finest awasedo finishing stones in Japan and
probably in the world. The Maruka stamp on the end, the registered stamp on the top of this stone
and the single toothed fine saw marks help to date the stone to before WW2.
This is an actual Maruka Nakayama awasedo, it is not a fake. Stones of this color and variety have
not been mined from Nakayama for well over three quarters of a century and they never will be
mined again as these rare deposits are depleted. The mine was closed in the 1960s and I will
not be able to replace or offer these stones again.