system
Given the following post, respond as if you're commenting on Reddit:
human
[Command and Conquer] Where did the red tiberium come from?

In Tiberium wars the green tiberium is the "natural" one and the blue one seems to be caused by the alien invasion (at least that's what I got from the GDI campaign) where did the red Tiberium from Tiberan Twilight come from?
gpt
None of the forms of Tiberium are "natural," they're all essentially a tool engineered by the Scrin to assist in their mining operations.  The green variant was simply the first one to appear, with blue being a more mature variant capable of converting more forms of matter to Tiberium (especially water).  

I dont think we ever get a coherent explanation for red, but following the pattern of green and blue it would be a substance that can convert still more exotic varieties of normal elements into tiberium.