platiniferous sand

例句：

1. 1.The goldsmith used platiniferous sand to craft the jewelry.
   这位金匠用铂金砂制作了这件珠宝。
2. 2. The riverbed is covered in platiniferous sand, making it difficult to walk on.
   河床被铂金砂覆盖，行走起来非常困难。
3. 3. The platiniferous sand was so fine that it could be mistaken for water.
   铂金砂非常细，可以和水混淆。