以how is glass made 为题弄一篇小短文，朗读2分钟左右

In nature, glass can be formed in three ways:

1.When lightning strikes sand – The energy from lightning that strikes a sandy beach or sandy soil fuses natural silica glass (called lechatelierite) into fragile forms called fulgurites. These branch-like formations in the ground can range from two centimeters to three inches in diameter, and up to several feet long. The tan or grayish exterior of a fulgurite is crusty and sandy, but the interior is lined with bubbly glass. Sand fulgurites are commonly found in Florida—a state with a high number of lightning strikes—the shores of Lake Michigan, and the Atlantic coast. Fulgurites are very fragile so must be carefully excavated.
2.When lightning strikes rocks – Rock fulgurites are formed when lighting strikes a rocky surface, and this commonly occurs on mountain peaks. Rather than the branch-like form of a sand fulgurite, a rock fulgurite appears as a thin, glassy crust on the rock’s surface. It has glass-lined bubbles or