This mod adds 4 new main ores: Fragmented, Celestial, Nullamite and Preserved Diamond
Here is how you get those ores:
Fragmented: This ore is pretty rare and only spawns below level -1. If you find this ore you wont immediatly notice that its there because it has a texxture of a deepslate BUT it emits light.
Celesital: This ore is rare and spawns at deepslate. This ore has a special texture
Nulllamite: This is the rarest ore of the mod, it only spawns in the null biome. In the null biome hoglins can spawn to kill you and 1 in 1000 times a wither will spawn. To find this ore you need EXTREME luck
Preserved Diamond: Preserved Diamonds are REALLY rare because It only spawns where a diamond ore generated and below -1.
What you can do with those ores: Craft tools and armor that get better the rarer the ore is