Minecraft wiki entry for Mining, associated text: This method can be used for netherite, and if you are looking for netherite, it is best to do so between y=8 and y=22 as there is a higher concentration of ancient debris between these levels. The method is similar to in the Overworld, but because netherrack is easier to break than stone, it can be instant-mined. This allows for the player to maintain sprint while mining, making the process much faster than in the Overworld. However, the method is also somewhat dangerous, as one will run into many pockets of lava - for this reason, the player should have high-tier armor, possibly with fire resistance, and potions of fire resistance.