Platinum

Shiny/Platinum is a metal added by both Thermal Expansion, call Shiny, and GregTech, called Platinum.

When both mods are present, Shiny is replaced with Platinum. In both mods it is used in some high tier machines

Shiny/Platinum Ingot are acquirable as byproduct from Pulverizeing Ferrous Ore and Iridium Ore, or from Sheldonite Ore.

It can also be made in a Fusion Reactor.

Shiny can occasionally be found in Dungeon chests, this is however not overwritten by GregTech, making Shiny metal still acquirable when both mods are installed.