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Kyoto Natural Stones

Mikawa Nagura 1923g

Mikawa Nagura 1923g

Regular price $2,907.00 HKD
Regular price Sale price $2,907.00 HKD
Sale Sold out
Shipping calculated at checkout.

 Mikawa Nagura are Tuff stones, a type of igneous rock formed from lithified volcanic ash. Mined in Aichi prefecture starting 700 years ago, they have been used in traditional Japanese sword polishing progressions. The mine has been closed since the 1970s.

We receive the stones from the wholesaler with rough chisel marks on both sides, and flatten them in our workshop. Although we have made a good effort to provide a flat surface for usage, we strongly recommend end users flatten the sharpening surface once more with a diamond plate.


This particular one is middle of the road in terms of friability and cutting speed. It burnishes out grains in the steel nicely.

There is a layer of darker material on the back of the stone. This is not a crack, does not differentially absorb water, and as a result the price per gram is unchanged. A close up picture is included.


Dimensions: 228mm x 81mm x 50mm

Weight: 1923g

Price per gram: 1.46HKD

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