Ōya stone
Appearance
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Ōya stone (
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]
References
[edit]- ^ NIPPONIA (15 December 2002). "An old oya-ishi stone mine". NIPPONIA. Archived from the original on 6 June 2011. Retrieved 4 April 2009.
- ^ Miyasaka, Asako (18 June 2010). "Underground mine preserves legacy of Oya stone". The Asahi Shimbun. Archived from the original on 2 October 2010. Retrieved 28 May 2011.
External links
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