Yunohana collectively refers to the minerals that are precipitated in the hot springs, but only that of Beitou in Taiwan and Tamagawa Hot Spring in the Akita Prefecture of Japan contains the trace element, radium, that forms hokutolite. Hot spring water continuously brings radium-containing minerals from underground to the surface.
Hokutolite is a very rare gemstone. It is produced in Beitou Hot Spring in Taiwan and Tamagawa Hot Spring in Akita prefecture, Japan. Currently, only these 2 places are the producing areas. But in Japan, it is designated as a natural treasure, so it is prohibited to mine. Which means, only Hokutolite from Taiwan is available now. Hokutolite is more expensive than regular gemstones.If you need one, You can find some Hokutolite stone on us!