sillsite

例句：

1. 1.The glass was made from silica sand.
   这个玻璃是用石英砂制成的。
2. 2.Quartz sand is commonly used as a building material.
   石英砂常被用作建筑材料。
3. 3. The engineer analyzed the silica content in the soil samples.
   工程师分析了土壤样本中的硅含量。