Stone brick
Stone bricks are manufactured through baking ordinary stone in a furnace. They are used in more advanced furnaces and for defensive walls.
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Recipes using stone bricks
| Wall | Electric furnace | Steel furnace |- | 
Stone bricks are manufactured through baking ordinary stone in a furnace. They are used in more advanced furnaces and for defensive walls.
| Recipe: | + => | 
| Total raw: | 
| Wall | Electric furnace | Steel furnace |- |