Izumi Blue Stone (Osaka Prefecture) [Famous Japanese Stone]

Izumi Blue Stone

Izumi Seishi

This is a prefectural stone mined in the southern part of Osaka City.
Izumi blue stone is also used in the walls of Kishiwada Castle, which is designated as a historic site in Osaka.
Kishiwada Castle is a castle that has changed lords over the course of history, from the Oda, Toyotomi, and Tokugawa periods.
This sandstone is found in the Izumi Formation of the Late Cretaceous period, and is a fine-grained stone that spreads from the coast to the seabed.
This is a geological layer distributed along the Median Tectonic Line in southwestern Japan, and its bluish-gray color is known as Izumi blue or Osaka blue.
The same species is collected in Naruto.

This is a prefectural stone produced in the southern part of Osaka City. Izumi Bluestone is also used in the walls of Kishiwada Castle, which is designated as a historic site in Osaka. Kishiwada Castle is a whose castle owners changed over the course of history, from Oda to Toyotomi, and Tokugawa eras. It is a sandstone found in the Izumi Group of the late Cretaceous period, and is a fine-textured stone that spreads from the coast to the sea ​​floor. This stratum is distributed along the central tectonic line in southwestern Japan, and its bluish-gray color is called Izumi Blue or Osaka Blue. One with the same properties is collected in Naruto.