arty

Mob and Ritsu are bort and black diamond with gold and platinum arms respectively. Originally they were labrodite twins (since twin gems are the only gems that can interact without scratching or breaking and also Labradorite is an awesome looking gem) This change to diamonds was absolutely because I took HnK Diamond's dynamic of insecurity, evny and admiration with Bort.

Reigen (who I keep changing) is an imperial topaz cause it looks cool but also cause it can totally break easily if struck in the right area with because of its perfect cleavage. He's got pyrite (fool's gold) arms that can't stretch the way the esper's alloys do because...its not gold. But he says it's gold anyways and that it just takes a heavy toll on him using it.

Teru is an Iris Agate since it mostly has this yellowish color and its really pretty when held to the light, but also to use the blue part in the reflection for his eyes. I gave him rose gold arms.

Sho is an orange and blue banded agate for the same reason as Teru to get both colors of his hair and eyes.

Serizawa is a rainbow obsidian cuz its pretty and he deserves it

Tome is a green obsidian, I just thought it'd be fun to have her as an obsidian buddy with Serizawa.

Inukawa is a brown moonstone cause of the simplicity of it's texture and luster and cuz he gets taken to the moon for a brief period and I thought it'd be funny to have his gemstone hint towards that. (One of his hands, which was left on the moon and prevents him from remembering his time there, probably just gets replaced with like quartz or something common like that.)

Tsubomi is a dark blue sapphire, dark enough to be mistaken as black and a "fancy sapphire" (which refers to sapphires that aren't blue). It's also one of the four precious gemstones.

Ekubo is an admiribilis, but I haven't thought of the lore behind him, and I haven't designed his true appearance because it's very difficult 😭

THAT'S EVERYONE ATM BUT IF ANYONE WANTS TO KNOW ABOUT LIKE A SIDE CHARACTER OR SOMETHING ASK AWAYYY