Basalt is commonly used as a paving material in China. However, after special treatment, it can transform into a high-performance fiber material with a metallic sheen—basalt fiber. This fiber is 5 to 10 times stronger than steel, yet its weight is about one-third that of steel of the same volume, greatly enhancing its application value. Thus, the technology for producing basalt fiber is often referred to as "turning stone into gold."