Talk:Myrtenaster/@comment-99.224.228.212-20130716132121/@comment-10390252-20130716134330

Dust appears to be some kind of power source or power cataylst. It enables machines powered by it to produce several different magic-like effects. Dust appears to be a naturally-occurring substance; it is mined, processed and then shipped to shops where it is sold over-the-counter for any number of different purposes, including powering weapons like those used by the RWBY girls.

Speculation:

Dust might also be used on people, probably by sprinkling it on your body or something like that to create certain effects like super speed or jumping far and fast. It might also be inhaled or ingested to create certain effects too. We'll probably know more as the show progresses.