Mikawa Nagura 1309g Consider using a diamond plate

Consider using a diamond plate to slurry the stone

It can give a darker polish with slurry

Consider soaking the stone prior to use

This stone is hard and not as friable as other examples

Dimensions: 230mm x 73mm x 40mm (Largest dimensions)

Mikawa Nagura 1309g Consider using a diamond plateMikawa Nagura are 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