01 / Tosa Inkstone (土佐硯)
Black stone from a deep gorge,carved into inkstones by the village guild.
Tosa inkstones are made from black slate (kuroshoku-nembangan) from Izakihatayama in Shimogiri, quarried from strata tens of millions of years old. The bluish-black stone contains a distinctive copper content, and calligraphers praise how the ink flows. The Mihara Suzuriishi Processing and Production Cooperative, founded in 1982, carries on the village craft.
- Quarried from strata tens of millions of years old (prefecture)
- Cooperative founded in 1982 (prefecture)
- Trademark registered in 1986 as "Meiseki Tosa Tankei Tosa Suzuri" (village notice)
