Yuzan Stone, Tamagawa Onsen, Akita Prefecture, Approx. 1kg

This is Shōzanseki, lava rock from Tamagawa, Akita Prefecture.
Hokutolite is largely formed by deposition on this stone.
The origin is Tamagawa Onsen in Akita Prefecture, and the content is approximately 1kg.
The explanation paper has many wrinkles and folds.
It is unused and in the same condition as when purchased on-site, but it has been stored for a long time.

I will handle the transaction responsibly until the end.
Immediate purchase is welcome.
Please refrain from purchasing if you are sensitive to minor imperfections, as this is amateur storage.