- "I need this."
- —Jack O'Neill
Liquid Naquadah is a liquified form of the mineral Naquadah. A green-yellow colored fluid contained in small, single vials serve as the power source for Goa'uld Staff weapons. Liquid Naquadah could also power an AG-3 satellite, as well as Naquadah generators . The Ancients used Liquid Naquadah to some extent in their technology, such as the power booster device developed by Colonel Jack O'Neill while having the sum total of Ancient knowledge. A single vial taken from a staff weapon had enough energy to allow a Stargate to dial an eight-chevron intergalactic address from Earth. (SG1: "The Fifth Race")
There is also a known variant of this substance known as Heavy Liquid Naquadah, Major Samantha Carter was unfamiliar with this variant of Naquadah suggesting that it was rare in application. (SG1: "Absolute Power")