Board Thread:Speculation House/@comment-124.170.71.149-20131218072814/@comment-4010415-20151121225142

Maybe they chose the four basic ones because of... energy, I guess? I dunno.

Well, fire has been shown to be red Dust, but Cinder's clothes glow orange, so she might use something else. What exactly orange is supposed to be has been subject to debate around here, and the two sides have settled on it being either Fire Level 2 or Lava. Either way, it seems that Cinder's black swords are obsidian, which is black volcanic glass, so it's possibel that her obsidian swords are created only using the orange Dust. Meanwhile, the glass shards she fired at Ruby could be a result of her using earth Dust and then heating it with her orange Dust, while manipulating it in the air with her Aura. The powder that was inside the container was white, then got heated up and manipulated into the shape of shards.