This little beauty might very well have a different origin than Nakayama. However, the origin is of merely academic interest to me as the real purpose of my stones is to sharpen my knives, kanna and chisel to a useable level. Actually most of my knives are way sharper than just useable, due to me sharpening them a lot more than strictly required.
This particular little stone was one of my first Japanese natural stones, and even after trying a magnitude of different stones this little beauty has earned its place in my setup as one of my absolute favourites. It is fairly hard, maybe around Lv4, very efficient and exactly the perfect grit range for most of my kitchen knives, leaving a nice mist and haze on my kasumi blades and a very keen edge with just the right amount of bite to it. Karasu can also be fairly soft and Maxim at japanesenaturalstones have a very nice and soft one that I hope to experience one day.
|A beautiful stone alltogether. I love it!|
|Small and thin but very clean and free of cracks|
|Beautiful karasu like a modernist painting. A true gemstone.|
The board is light grey with spots of greenish to yellowish in it and with a dense karasu pattern showing a shine in the dark mica in the stone making the karasu so efficient as a sharpening stone. I looks like it has got a perfect camouflage. It also shows some nashiji pattern enbetween the black karasu. This stone has really got it all.
The white lines in the board looks almost like paint spill on the stone and is close to the same hardness as the rest of the stone and thus of absolutely no consequence to the sharpening.
When sharpening, the stone pulls black metal filings immediately proving that this is a very efficient and fairly hard stone. You can see the metal filings suspended in the clear water before a slurry has built. This is usually a good sign, but it is no guarantee for the stone being a good sharpener or finisher. It is just a proof that the stone removes metal, which is only one of several things a good stone will have to do.
|Black metal filings suspended in clear water = extraordinary efficiency.|
|Dense dark slurry building up|
|Not a high polish finish, but a very keen edge|
However small, this little stone is an absolute pleasure to use and one of the very few true gems in my collection. As it is a fairly hard rock, hopefully it will last a long time.