Thread: J-Nat club

The rusty lines are just that - actually the edges of 'skin' layers. They're usually not toxic unless they contain a thick enough glassy layer so that the glass is strong enough to resist wearing down with the rest of the stone. I recently picked such a line in a karasu because it stuck up above the surface. In suita, you can also find sandy spots in the layers.

In the first image, you can see the patch of iron rich skin on the side of the suita that is the suji line. The stone below it is likely an akepin or soft tomae and came as-is and was probably hit or dropped and it broke along the lines. You can see the traces of namazu along the edges similar to the other lines.

One of the signs of a true maruka and better grade stamped stones is that they will have no lines of this type though they may possibly have a closed, non-absorbent, non-reflective line.

Cheers, Steve

Originally Posted by Steve56

One of the signs of a true maruka and better grade stamped stones is that they will have no lines of this type though they may possibly have a closed, non-absorbent, non-reflective line.
Cheers, Steve

Mine came with similar lines and also has all the stamps of a Maruka. It is a great stone, no issues.

Arent this stone especialy stamped for JNS They are very good stones , but they are on my opinion entirely another stones from the old Maruka with the stamp on the side .
Anway they are very good and hard stones . It is intresting how the old stock stonese difere significantly from the new ones .Anyway i love those green stones with white or wellow stripes They are just gorgeous

Originally Posted by RusenBG

Arent this stone especialy stamped for JNS

I got mine from So Yamashita.

So-San's father in Japan is a respected stone dealer and expert in Japanese stones. It may well be that Max buys stones from him.

Cheers, Steve

Originally Posted by RusenBG

Arent this stone especialy stamped for JNS They are very good stones , but they are on my opinion entirely another stones from the old Maruka with the stamp on the side .
Anway they are very good and hard stones . It is intresting how the old stock stonese difere significantly from the new ones .Anyway i love those green stones with white or wellow stripes They are just gorgeous

The surface stamps are Maruichi and can be seen on many stones that are not sold by JNS.
Maruka is the side stamp that was used by Kato family when they mined Nakayama.
Here is one Nakayama that I used to own with all the stamps on it, got it from So many years ago.

So-San's father in Japan is a respected stone dealer and expert in Japanese stones. It may well be that Max buys stones from him.

Yes this is for shure that JNS stones are hight quality and they are very good I think that the miners stamp them with certain stamps especialy for hight end respected dealers like Maxim and Alex
I think so as i was seing pics how the Ohira owner stamp stones as certificat for Alex , and i think that those stamps are especialy for JNS , as origin and certificate
Whatever i dontunderstand Kanji so the stamped stones arent for me ha ha a ah
Whatever