Board Thread:Speculation House/@comment-70.72.38.180-20150401032633/@comment-4010415-20150427025507

@Spiegel When Ruby said "She fought with glass," she very likely meant the black swords. Obsidian is black glass, which is produced by volcanic eruptions, so if there is lava Dust, then someone can probably manipulate the lava Dust into quickly cooling and forming obsidian in whatever shape they want, the way Cinder did to make the swords.

@Live You have a point, though there's still the fact that fire Dust is red (Ruby's sneeze scene; "Burn, uncut" being given a red Dust crystal in V1E1), and Cinder's clothes have had a bright orange glow.

Considering that we have actually seen orange Dust crystals (unsure if there are two shades or not), this would imply that fire Dust and whatever Cinder is using are two completely different types.