Tosa Akaishi (Kochi Prefecture) [Famous Japanese Stone]

TOSA Akaishi

Tosa Akaishi

The Niyodo River is known as "the cleanest river in Japan" and is known for its beautiful clarity, so much so that it is nicknamed "Niyodo Blue."
The red stones that can be found in this area are widely used for interior decoration and as garden stones.
Shikoku is an area where you can see a variety of colors such as arknites, solomonites, and quartz, but there are some places where you can see five different colors, and this is a famous stone that can only be found in certain areas, such as Goshikihama on Awaji Island.
The five colors that have turned into rocks are called five-colored pebbles.
Currently, mining of both is prohibited by law and they cannot be extracted.

Japan stones from the Niyodo River in Kochi Prefecture. The Niyodo River is known as the "clearest river in Japan" and is known for its beautiful transparency so much so that it is called "Niyodo Blue." The red stones that can be collected in this area are widely used as interior and garden stones. In Shikoku, various colors of stone can be seen, such as Arknite, Solomonite, and quartz, but there are only some places where you can see five colors stone, such as Goshikihama on Awaji Island. When the five colors stone becomes conglomerate, they are called Goshiki Sazareishi. Currently, mining of both is prohibited by law, and they cannot be collected.