This is a hard Ohira. Slurry will develop but a nagura stone is recommended to aid in creating some slurry. This stone is great for knives, razors, and tools. These stones are mined in Kyoto Japan. Natural whetstones wear much slower then synthetic stones. This stone will last years if not tens of years.
This stone is very rare to have nashiji pattern as well as black sesame or "Goma" This is a must have for any collector. It is also very large almost a weighing a pound more then other stones comparable.
Length - 8"
Width - 3"
Thickness - 1.75"
Hardness - 4.5
Grit - 8,000 - 12,000
Weight - 3 Lbs 15.3 Oz
All of our Natural stones are bought directly from the only couple mines still available, they are all tested and certified authentic before being purchased.
Some stones have defects and inclusions. we cannot guarantee perfect shape and wearing. All sales are final on natural stones.