ballistite

例句：

1. 1.The ballistite was found in a cave near the city.
   在城市附近的一个洞穴里发现了球状硅石。
2. 2.Ballistite is a rare mineral that can be used for industrial purposes.
   球状硅石是一种稀有矿物，可以用于工业用途。
3. 3. The ballistite has been studied for its potential as a solar energy storage material.
   球状硅石已被研究作为太阳能储能材料的潜在来源。