一色 枕状溶岩クッキー

Have a sweet dream with a pillow made with almonds and cherry leaves !


Where you can find this rock :

Near Nishina River in Ishiki, Nishi-izu Town


This pillow effect solidified lava was formed after volcanic eruptions about 20 million years ago, when Izu Peninsula was a collection of submarine volcanoes located in the far south of Japan. When low viscosity lava was exposed to the cold sea ocean, it set into a tubular shape. The name Pillow Lava comes from this tubular appearance resembling a pile of bolster pillows. The rock is a part of the Nishina Group, the oldest strata in Izu Peninsula, and it can be seen in Ishiki area in Nishiizu Town.