Thread: Hone ID help needed- Nakayama Asagi?

Originally Posted by maxim207

Is the labile on the box sun tiger ???
Karasu Strata ??? Hmm no such thing. Karasu can be found even in very shallow layer and very deep.
Awasedo type ?? Awasedo means finishing stone

As for Karasu/Awasedo I should clarify my point of view.
I use the word 'strata' for what japanese call 層 ( http://jisho.org/kanji/details/%E5%B1%A4 ) and you call as a layer.
I use 4 clades to classify fine types japanese toishi, they are

1) Uchigumori （内曇） ( AKA 天上巣板 )
2) Awasedo ( 合砥 ), I include here all that Tomae (戸前), Namito (並砥) and so on including Aisa (合さ)
3) Suita ( 巣板 )
4) Karasu ( カラス )

it is not a geological, but rather practical classification of toishi very popular in Japan.