sea sand 意味

• 海砂
  

例文

1. the sakin (gold dust ) which had been produced in mutsu province from time immemorial was used for transactions on the basis of quality and quantity; and in the course of time , nerikin (agglutinate gold ) made of dissolved sakin with a hallmark put on or takenagashikin (gold agglomeration made by putting dissolved sakin into a bamboo cylinder ) began to be used , and furthermore bankin (gold coins ) such as hirumokin (gold plate like a leaf of hirumo [a plant which grows on the sea sand ]) which were made by beating gold blocks into the form of plates began to be made , and at first they were circulated as hyodo kahei (currency valued by weight ).
   陸奥国では古くから砂金が産出し、質量に応じて取引に使用されていたが、やがてこれを鎔融して極印を打った練金（ねりきん）あるいは竹流金（たけながしきん）としたものが用いられるようになり、さらに内部まで金でできていることを証明するため、板状に打ち延ばした蛭藻金（ひるもきん）などの判金が製作されるようになり、当初これらは秤量貨幣として通用した。