Nether Crucible

The Nether Crucible is a block from Flaxbeard's Steam Power. It is used to melt ingots, nuggets, and plates. Ores cannot be melted in the Nether Crucible. Throwing in the valid items will cause them to melt. The metal can then be poured into an adjacent Mold block, if it contains a valid mold item. Unlike the Crucible, it does not require an external heat source.

Journal Entry
The following text is taken from the Esteemed Innovation book.