Nickel

Ferrous ore is added by Thermal Expansion. It can be processed into dust using one of many machines from the various mods. Processing the ore with one of these machines can double or even triple your ingot output. Like all other ores it can also be smelted in any furnace or other smelting machine. Ferrous Ingots is used in some high end Thermal Expansion crafting recipes. And the dust is used in the production of Invar