flagstaffite

例句：

1. 1. The flagstaffite is a rare mineral that can be found in the desert.
   旗杆石是一种稀有矿物，可以在沙漠中找到。
2. 2. The flagstaffite has been used in ancient artifacts to preserve them for centuries.
   旗杆石被用于古代文物中，以保存它们数世纪之久。
3. 3. The flagstaffite is also known for its ability to absorb and store light energy.
   旗杆石还因其吸收和储存光能的能力而闻名。