Crystalline Condensation Tower

Reaching toward the sky, an assemblage of powerful turbines and Rare Earth catalysts flash-freezes pure Crystalline out of supersaturated atmosphere in a highly energy and water intensive process.
Additional note: This is meant to use
Rare Earth Metals in its recipe to balance out not consuming many other resources. If Rare Earth Metals or some other manual-only resource doesn't get implemented, I guess you could have it consume a lot of Sugar and Oil instead.