Ōya stone explained

is an igneous rock, created from lava and ash. Ōya stone was famously used in the facing of Frank Lloyd Wright's Imperial Hotel in Tokyo. One reason this stone was used is because it has a warm texture and is easily carved, which allows much versatility.[1] Ōya stone can have different colors and is also fireproof.

Ōya stone can only be found in an area 4 kilometers to the east and west by 6 kilometers to the north and south around the town of Ōya, near Utsunomiya, but there are reserves of around 600 million tons.[2]

External links

Notes and References

  1. Web site: An old oya-ishi stone mine. NIPPONIA. 4 April 2009. NIPPONIA. https://web.archive.org/web/20110606043658/http://web-japan.org/nipponia/nipponia23/en/feature/feature13.html. 2011-06-06. 15 December 2002. live.
  2. Web site: Miyasaka. Asako. Underground mine preserves legacy of Oya stone. The Asahi Shimbun. 28 May 2011. https://web.archive.org/web/20101002040705/http://www.asahi.com/english/TKY201006170491.html. 2010-10-02. 18 June 2010. live.

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