Crucible (Flaxbeard's Steam Power)

The Crucible is a block from Flaxbeard's Steam Power. It is used to melt ingots, nuggets, and plates. Ores cannot be melted in the Crucible. Throwing in the valid items will cause them to instantly melt. The metal can then be poured into an adjacent Mold block, if it contains a valid mold item. The Crucible will only work if there is fire or lava directly underneath it.

It is the only way to obtain Brass and Gilded Iron, which are both used commonly in recipes within the mod. One Zinc Ingot combined with three Copper Ingots will create 4 Brass Ingot. Gilded Iron can be created by right-clicking a crucible with an iron ingot that contains at least one nugget of gold. The nugget of gold will be consumed.

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