Bloodstone ore looks like a dirt block with small, dark-grey flecks. Since the dirt in Hell worlds is nearly black-colored, this ore is almost impossible to see. In inventory, it appears as a very dark-green pile in the Resources tab.
How to Obtain
Bloodstone ore is found only in Hell worlds, typically in the lower part of the map, and is mined with any type of pickaxe.
Bloodstone ore is used in crafting bloodstone blocks, columns, and pedestals.