Hardness   Grit/Finess   Speed/Strength   Price in U.S.
10+            10+                     7                      SOLD   
When used with a paste created by a diamond plate  
10+            10+                    9+

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 at the middle SAIKOKYUHIN (very best quality)

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
photos.

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.

This is a very hard stone and it requires advanced sharpening skills to use. The change in color
indicates it is from the edge of the strata. These very hard stones are more easily used if a
diamond nagura (DN) plate is used before hand to build up a slurry.
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