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Hi there!
I've got a few Ohzuku's and after some use there are more and more white-ish specs,especially on one of them,
after looking more closely I suspect now it could be a suita, could I be right?
Thank you!
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The kanji lettering on the stone is 大突 that is Ozuku
But as for "whitish specs" or small holes I think it is not a discriminating marks for Suita type.
I have seen a lot of Tomae Awasedo with such a specs and holes.
I would look at it with a loupe as they could be holes with swarf in them, or minerals splashed in the stone. Bottom line is how does it produce? Everything else including stamps is irrelevant.
There are absolutely holes, but filled with some kind of substance that do not seems to get out,Quote:
Originally Posted by bill3152
it is a very hard stone that give with tomo easily HHT 4 edges, seems to be rather "scratchy"
Thanks!
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Its possible the holes are full of grit like maybe a nagura or tomo. Ive heard that some recommend not using nagura or tomos on suita for this reason. If it were mine, I would lap it down a bit and take another look. Steel fillings (swarf) can look like mica.
The abrasive grains of stone are crushing into finest dust during sharpening and this dust is filling all that small holes.
It's normal.
You can get rid of that dust with ultrasonic cleaner. But usually you don't need to.
A very telling sign of suita is their layered structure, just look at the side , if you can show us pics it will be easier to tell. Some hard stones can have small holes like that but they are not su. I have an Ozuko like that, it is very hard and very very fine finisher.
Another feature to consider is the color of the stone. From the pics your stone looks green with rusty spots, suitas are not green. Typical suita colors are yellow, orange, white and mixtures of those. Finally I can see clouds in the features of your stone, suitas do not have that feature.
It seems to me that such a stones with such coloration and such "suji" ( 筋 ) are rather so called "deep stratum", than suita.Quote:
Originally Posted by mainaman
BTW here it is the example of ordinary Oohira Tomae with small holes AKA "su" ( 巣 ): Oohira Tomae
And here it is some examples of Ozuku Suita stones:Quote:
Originally Posted by mainaman
http://forum.guns.ru/forummessage/22...s21650063.html
http://forum.guns.ru/forummessage/22...s21927436.html
http://forum.guns.ru/forummessage/22...s21939384.html
Colors are off in the pic but this stone is not green by any stretch, I had forgotten that there are also asagi colored suitas, I used to own one. The stone also seems to have some renge , that is only present in suita stones.Quote:
Originally Posted by Nikolay
double post, sorry
No problem of course! Again very interesting and informative answers here!Quote:
Originally Posted by mainaman
Thank you all for enrich us with your knowledge!
The color is a bit hard to pin I must say
Have a couple of pics of the sides, don't know if this helps...
(below pic is the upper stone)
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I'm considering lapping it, thanks for mentioning!Quote:
Originally Posted by bill3152
This is not a suita stone.
Thank you anyway!Quote:
Originally Posted by mainaman
The specs confused me but I'm learning a lot from all of you!
Much obliged,
Kindest regards
