Meteor (Earth-2213)

A meteor is a large mass of rock or matter of extraterrestrial origin that occasionally crashes onto the surface of the Earth. A meteor varies in size, and depending on its size and impact, it will cause heavy damage to infrastructure or local population centers. After impacting on the world, meteors can create large depressions, known as craters.

History
While Team 7 gazed at a meteor shower, they saw a large meteor within the shower enter the world's atmosphere and crash nearby the forest they were camping in. The rock, hot from its impact, started a fire that began consuming the nearby village of Shu Jing. Together with Toph Beifong, they were able to extinguish the meteor's flames with their bending and save the village.

One week later, Sasuke Uchiha learned the art of swordfighting under Master Piandao. When Piandao tasked Sasuke to make his own material to craft a sword of his own, Sasuke remembered of the meteor he helped to contain one week earlier, and with the help of Team 7, he transported a fragment of the rock to Piandao's castle. The swordmaster was impressed with the material, revealing he would be able to craft a sword "unlike any other in the world" for Sasuke. After a whole day of tedious labor for Sasuke, he and Piandao crafted a sword out of the rock, which proved to be harder than any other known steel.

Sasuke then saved another piece of the meteorite and gave it to Toph, so she could perfect her earthbending skills.

Suyin collected meteorite fragments she found buried beneath the ground to use for metalbending, which she said were perfect for chunin as they had unique properties which allowed for a simplified bending teaching. She instructed Naruto in the art of metalbending with her collection.