Cobalite is a gem found in the Nether and the Voidwarp Nether.
Ores of Cobalite are distributed ambiently throughout pockets of Netherrack in the Nether and Voidwarp Nether. They can generate at any height in pockets of 1-9 ores.
When mined, there is a 10% chance for ores to spawn a Cobalite Golem. As these are small and fast, they pose considerable threat when mining Cobalite.