Cat-floating - Cat-floating
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A method of mineral dressing. Sandy ore is repeatedly washed down a wide trough with straw mats (called neko or nekoda) at the bottom, and the target minerals are deposited at the bottom. This is a primitive gravity dressing method that has been used since ancient times to collect gold and iron sand. → Related article Gold dust Source : Heibonsha Encyclopedia About MyPedia Information |
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選鉱法の一つ。底にむしろ（ねこ，ねこだと呼ぶ）などを張った幅の広い樋(とい)に砂状鉱石を水とともに繰り返し流下させ，比重の小さい脈石を流し去り，目的鉱物を底に堆積させる方法。古くから行われてきた原始的な比重選鉱法で，砂金，砂鉄などの採取に用いられた。 →関連項目砂金 出典 株式会社平凡社百科事典マイペディアについて 情報 |
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