Block of Copper is a block added by Tinkers' Construct. Block of Copper is primarily used as a storage block for Copper Ingots but may also be used as decoration.
Block of Copper cannot be crafted like vanilla Minecraft material blocks, but must be crafted by pouring 1296mB of Molten Copper in a Casting Basin from a Smeltery.
They may be broken down by the use of a Crafting Table to produce 9 Copper Ingots. With 4 Blocks of Copper a Copper-legged version of the Tool Forge can be crafted, which is purely aesthetic.