Board Thread:General Discussion/@comment-98.121.195.23-20130823041502/@comment-4010415-20150930021951

1. The only time that it has actually been confirmed that Weiss' glyph changed color because of Dust was the haste glyph. In Painting the Town, Myrtenaster's blade glowed yellow, then there was a yellow flash, followed by a yellow streak trailing through the air, hitting the ground, and spawning the haste glyph under Blake.

2. As far as we've seen, there's no such thing as black Dust, so Weiss' black glyphs are not from Dust. Her glyphs seem to turn black whenever she uses them to hold someone still in the air, considering the two times we've seen black glyphs have been when she held Ruby back on the slingshot and when she held herself in the air while fighting the Boarbatusk.

3. There doesn't seem to be any difference between what the white and light blue glyphs do.

The raw ability of Weiss' glyphs is controlling the motion of whatever is within the circle - pushing, pulling, and holding in place. This is not the result of her mixing Dust directly with a glyph. The reason for my emphasis:

1. Mixing Dust with a glyph results in changing what the glyph does, such as when she mixes yellow Dust (lightning) with a glyph to produce a haste glyph.

2. Meanwhile, she has used Dust in tandem with glyphs, as in using glyphs to control how the Dust moves and manifests. When she does this, the behavior and ability of the glyph does not change. She's just using the glyph to be more precise in her control of the Dust. She frequently does this with ice Dust, as we've seen in Players and Pieces (curved ice wall to catch the stinger), Painting the Town (coating Ruby's bullets with powdered ice Dust), No Brakes (ice dome), and Breach (ice sword).

So, no, when Weiss' glyphs change between white, light blue, and black, that is not Dust.

Besides, when have we seen anyone else (other than Jaune) present with some kind of energy field every single time they use their Semblance? Ruby leaves behind rose petals, but does she glow? No. Yang's hair glows and sets on fire, sometimes there's a burst of fire around her, but does her body itself glow? No. Does Blake glow whenever she leaves behind a clone? No, and her clones tend to just blur and fade away, rather than giving off a specific color.

Also, when Blake mixed Dust with her clones, her clones did not change color. They were completely made of the elements the Dust contained. She didn't produce a glowing orange clone that exploded; she produced a clone literally made entirely of fire! She didn't produce a gray clone that fell apart; she produced a clone literally made of stone! She didn't produce a blue clone; she produced a clone literally made entirely out of ice! They were different colors because they were literally made out of different materials. That has absolutely no bearing on how Weiss' Semblance behaves.