English: A very rare rock called "sha-boishi" (shabu-ishi / ha-no-haishi) that produces a shari-stone that is used as an alternative to stupa (a shakurin's remains) since ancient times in Japan. When the lava solidifies, the internal gas forms a bubble, and silicon dioxide crystallizes in the cavity. A stone is a grain of this moss, and a stone represents the name of a rock containing the stone (or a rock in that state). It was taken at that beach, which was once called Sarihama in Imabetsu Town, Aomori Prefecture, but the revetment was covered with concrete and modernized and a wave-dissipating block was installed by modernization. As National Route 280 runs on the coast and the beach disappears, shari-hama stone and stone stone may be called a phantom stone. It is said that discovery itself is very difficult in the first place, and it is sometimes traded at high prices.