User blog comment:DiegoAnime3000/Black is for Polarity/@comment-15145664-20140110234404/@comment-3257939-20140111221543

Now I get it, thanks for the explanation. Yeah, Ruby's Black Dust Bullets are called Gravity Rounds, so I guess Black in general is more like Gravity. You really helped me out to understand more about this concept. Monty really needs to explain us more about Dust and Semblance in the upcoming Volume 2.

You think I should change the title to Black is for Gravity? Sounds more like it.