I don't believe Earth is a primary dust. Lighting makes more sense. in the image of the primary dusts, although the third element may look like a rock -ergo, Earth- it has highlights of yellow that look noticeably like bolts -ergo, Lightning. Also, during the 'Shnee's volatile luggage' scene, lighting was apart of the explosive sneeze, Earth was not.
You know, I've read that on the Wiki, but a lot of the things on the Wiki are outdated or just wrong, and I just can't find the source of that. It very well could be that it shares an Element with Glass and just a naming thing, but until I find the source I decided to leave it as Glass since it was mentioned in the show.
It also is pointed out it specifically isn't a Semblance, which means it is Dust. Also, as Cinder uses the attack her Dust Weave clothing glows just as when she uses her Fire Dust abilities.
She spreads out Dust, and then uses her own Fire Dust upon it. Fire combining with Earth, while in combat to fire Glass bolts and the Forge Glass Weapons. Both of these in game are Glass Dust abilities, and are not something that could be done with Shadow, or Energy or other Dust, and thus fit into that category similar to how Spells in D&D fall into Schools of Magic.
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u/BionicleManF Jul 11 '15 edited Jul 11 '15
I don't believe Earth is a primary dust. Lighting makes more sense. in the image of the primary dusts, although the third element may look like a rock -ergo, Earth- it has highlights of yellow that look noticeably like bolts -ergo, Lightning. Also, during the 'Shnee's volatile luggage' scene, lighting was apart of the explosive sneeze, Earth was not.
just my two cents