Nether Brick is a building material in the game Minecraft, crafted from Nether Brick Items obtained by smelting Netherrack in a furnace. It has a dark red color and a unique texture, making it popular for constructing various structures, especially in the Nether dimension. In addition to its aesthetic appeal, Nether Brick is also fire-resistant, which adds to its usefulness in building. Players can create Nether Brick Stairs and Nether Brick Fences for added design options. Overall, it serves as a versatile material for both functional and decorative purposes in the game.