| 1 | They do not produce rain and are usually made up of ice. | |
| 2 | Ice encased each of the needles in a clear jacket. | |
| 3 | In the above case, however, there are actually millions of lenses: ice crystals. | |
| 4 | These ice crystals act as seeds for other water droplets to freeze onto. | |
| 5 | The upside down kind however, are caused by ice crystals in the air. |