quartz powder

例句：

1. 1. This quartz powder is used in the production of glassware.
   这种石英粉用于生产玻璃器皿。
2. 2. The mineral quartz is often found in sandstone formations.
   石英矿物通常在砂岩形成中被发现。
3. 3. Quartz powder is a key ingredient in making high-quality glass.
   石英粉是制造高质量玻璃的关键成分。