Itomuka mine From Wikipedia, the free encyclopedia Mine in Hokkaido, Japan CountryJapanProductsMercuryItomuka mineLocationHokkaidoCountryJapanProductionProductsMercury The Itomuka mine is one of the largest mercury mines in Japan and in the world.[1] The mine is located in Hokkaido.[1] The mine has estimated reserves of 0.95 million tonnes of ore grading 0.35% mercury.[1] 1 2 3 "Mineral deposits of Northern Asia". docstoc.com. 2012. Archived from the original on 2013-09-23. Retrieved 2013-07-10. Related Articles