Nickel

Embers
Spawns as an ore between Y=0 and Y=24

Extra Bees
The s produce which produce  when processed in a.

Factory Tech
Spawns as an ore between Y=0 and Y=24

Immersive Engineering
Spawns as a hidden ore in Iron and Nickel which must be mined using an

Mystical Agriculture
Mystical Agriculture's yield  when harvested, which can be combined into Nickel Ingots.

Tech Reborn
Nickel Dust is a product of processing in an

Thermal Foundation
Spawns as an ore between Y=5 and Y=20