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据日本名古屋通产局1982年调查,日本爱知县的八草、濑户、枝下三地区的矿山原料储量:木节粘土为1615.5万吨,矿山开采寿命约60年;硅目粘土为1759.7万吨,矿山开采寿命约70年;石英砂为10264.6万吨,矿山开采寿命约30年。岐阜县的东浓东部和西部的矿山原料储量:木节粘土为1019.4万吨,矿山开采寿命38年;硅目粘土为4745.3万吨,矿山开采寿命80年。
According to a survey conducted by the Japan Nagoya General Bureau of Production in 1982, the raw material reserves of the eight grasses, the Seto, and the Chihsan areas of the Aichi Prefecture in Japan are: 16.155 million tons of wood clay, and the life expectancy of the mine is about 60 years; and the silicon clay is 17.597 million tons. The life of the mine is about 70 years; quartz sand is 102.646 million tons, and the life of the mine is about 30 years. The reserves of raw materials for the mines in eastern and western Dongyuan of Jixian County are 10.194 million tons of clay, 38 years of mine life, and 47.453 million tons of siliceous clay. The life of the mine is 80 years.