Netherite

Netherite is a material exclusive in the Nether, and is the strongest in the game. It's armour has built in blast protection, and cannot burn in lava. It can be created by obtaining 12 Ancient Debris, smelting it into Netherite Scrap, then place 3 on the top, 1 on the left-middle side, and 2 gold in the middle, and 2 gold on the left-bottom.

You can also use 9 netherite to create 1 Netherite Block, which is the second strongest block in the game. It was the 1st ore created in the Nether, the 2nd being Quartz.