Nope I haven't tried.
It looks like it is only used to make the seared bricks though. To make the bigger smeltery "easier" to build.
Personally i don't think it is easier, since all you need for the seared bricks is clay, sand, and gravel. All easy to get with Ex Nahilo.
It looks like it is only used to make the seared bricks though. To make the bigger smeltery "easier" to build.
You can melt those little stones you get from smashing rocks and sieving dirt in a crucible to get seared brick. Only 72 stones per brick ITEM.
Personally i don't think it is easier, since all you need for the seared bricks is clay, sand, and gravel. All easy to get with Ex Nahilo.