天然砥石 正本山 山城銘砥 あいさ付け最高 2994

黒は鉄の華。他の色は石自体が磨耗した砥泥。鉄華即錆のものは煙硝等、酸化的雰囲気の石であるか、生地が特に精細であるもの。
The Iron flower seems black.
If the flower changes own color immediately ,we can assume the grit is so fine.
But the cause of the change may come from the atmosphere of nitrous sulfate.
We must notice where is the cause belong to???And there is many imitation around us.
Other colors seems stones is made of slurry.
Poor class can make only slurry...But moderate quantity of the slurry is so necessary to sharpen and improve the feeling during sharpening process.
Their balance are depend on our feeling ,skill ,uses and favor.
please dont hesitate to gain the experience.
The grit of Japanese water stones can be shrunken as well as you sharpen.
It is the best characteristic of the Japanese whetstones.
Absolutely ,Iyo mate has the widest grit range which variations are depend on only one stone.
Certainly ,Iyo mate has much kind of starting grit.
Called Tetsuhami starts from #500 ,and go to less than #800.
Called Iyo Meshime starts from more than #1000 ,and go to more than #3000.
One of the Iyo that is belong to full mirror finish stones.
You know ,one of the Western sharpening technology which is called making slurry.
It is made by to rub particle stones ,diamond plate or the same materials.
As is often the case ,JP calls it Nagura-Kake or Metate.
Iyo mate is discovered stone in Japan at first.';info(text);return false;" style="font-size: 10px; background-color: rgb(0, 0, 255); color: rgb(255, 255, 255);" name="B3" title="translate to English" value="English" src="http://www.330mate.com/data/fujibato/image/eng.jpg" type="image" align="left">English

京都産仕上砥石は粘板岩にも頁岩/けつがん/にも属し、素養を崩すような熱変成までは受けないため、側面の積層具合が品位そのものを示します。「頁」とはページと読まれ、帳面のページそのものを指す漢字であり、勿論帳面成りの姿とその展開方向への顕著なへき開性有する石を指します。
積層の姿は我々に語りかけます。「さゞれ石が幾重もの頁として紡ぎ上げる為に要した時間や属する鉱脈を特定すべく不偏の理。」であると。
我々は、曇りなき眼で2億年以上紡ぎあげてきた自然界の業を確認するべきであり、それは難しいことではないはずです。
産地を偽ることができても、側面までは偽ることができないのです。
Because ,we must confirm the multiple layers of the section.
It is telling us the authentic Kyoto Honyama Yamashiro mate born in central Kyoto city has very narrow parallel layers.
It is the absolutely evidence of authentic top class stones. He is king of kings!!
Iyo mate was made of rhyolite firstly.
Because Iyo has almost no layers ,and it is ordinary shape.';info(text);return false;" style="font-size: 10px; background-color: rgb(0, 0, 255); color: rgb(255, 255, 255);" name="B3" title="translate to English" value="English" src="http://www.330mate.com/data/fujibato/image/eng.jpg" align="left" type="image">English

正本山の皮なし・鏨開けはだが確認できないものは、半値以下の価値です。目の通りに作成出来ないほどの品位であるからです。