Titanium
From SGCommand
Titanium is a metal used on Earth. The first Iris covering the Stargate was made of titanium, but it was destroyed when the Stargate dialed a black hole. (SG1: "Children of the Gods", "A Matter of Time")
Titanium is a metal used on Earth. The first Iris covering the Stargate was made of titanium, but it was destroyed when the Stargate dialed a black hole. (SG1: "Children of the Gods", "A Matter of Time")