Forum:Red Tiberium

I'm curious, where did the concept of Red Tiberium come from? There's a short on it on the Tiberium page, but no citation. And the question on the discussion page about it was never answered. I recall using Red Tiberium in a story of mine a long time ago, but I just made that up. I don't recall any canonical evidence for it. Z98 21:17, 31 December 2007 (UTC)