O Tijolo de Pedra-pérola ("Pearlstone Brick" em inglês) é um material de construção. Não espalha O Sagrado quando colocado, e assim são melhores materiais dos que o seus ingredientes.
While pickaxes prior to the Nightmare and Deathbringer Pickaxes are unable to mine Pearlstone Bricks, they have no special resistance to explosions.
Like any bricks with low saturation, Pearlstone Bricks can only be painted with deep colored paints, black or white. This also applies to their wall variation.
Pearlstone Brick's counterparts are The Corruption's Ebonstone Brick, and The Crimson's Crimstone Brick. All three can be used to create valid housing, without spreading their respective biomes.