I think this is cool, but here are my suggestions:

Sodium is basically just RBDM

Copper would be cool, how about it speed-conducts like GOLD and has the heat conductivity of HEAC? Maybe some interesting catalytic reactions or something?

Graphite would also be cool. I don't think it should be produced with COAL (would break saves), but maybe it has uses like dyeing things black or having extremely high heat tolerance. I don't think it should be weak like TUNG.

BREL = aluminum

I can't really think of uses for quarks in TPT

Deuterium might have some interesting reactions, but it shouldn't be produced from hydrogen fusion

Tritium might be cool, maybe it fuses with deuterium and releases a lot of neutrons at a really low temp

Again, what are the uses for quarks?

NEUT decay would probably break saves and it would be weird to make it based on properties

Here's my thoughts:
As I have stated on the discord server I think that aluminum should be added as a solid that blocks pressure but can also be deformed by pressure(kinda like broken GOO except it doesn't dissapear and resists movement a bit more). BREL being aluminum is just a contrivance for a way to make THRM.

Tritium being made by firing NEUT at LITH would be cool, although Idk what tritium would do. Maybe it could act as a slightly more powerful gasseous version of DEUT. Maybe it could also react with GRVT in the same way. 

@ArolaunTech (View Post)

 maybe the uses for quarks could be a particle collider? or like gravitons, penetrate things?