Naquadah = Stargate movie -> Stargate:SG1 -> Stargate Atlantis -> Stargate Universe ( i think anyways, its almost certain that they atleast mention it once or twice)
This is going offtopic or is just me? (I say this becouse this is a thread about Naquadah element and now we are talking about what stargate series haves the nequadah)
@MasterMind555(View Post) And bizarre (or sub-zero flame) exists in real life? It is usefull for electronics & explosive (like nukes) improvement. Anyway, it doesnt hurt to have it in powder toy.