I want to suggest a few new elements:
Steel, like titanium, but dosn't block pressure and is a movable solid.
Aliminium, like brakeable metal, but i a movable solid.
Dynamite, like TNT, but is a movable solid.
Plastic, light blue movable insulation.
Trintium a white, compressable liquid. Fusses with deterium under tempatures over 20,000 to poduce plasmated helium at 100,000.
Helium, a blue gas that flows in the opposite direction to gravity. Can be plasmated.
So thats my ideas. Please comment if you have any sugestions.
No moving solids...and you have to think of uses to your suggestions because well, we don't waste our time adding a element that does nothing. (except for the hidden elements like LOLZ, LOVE....*eye twitch*)
Theres been flaming for the past 4 years or so for moving solids and the best thats been done is pistons, and jacob1's mod has moving solids. Apparently they are really hard to code and they won't run very well either.