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Overview

The crucible is used for smelting Ores, to catch liquid Pig Iron that is smelted in a Blast Furnace, and as a device for mixing Alloys. It can also be picked up with a pickaxe, and moved around while retaining its contents.

Making the Crucible

Fire Clay

Fire Clay is crafted with Clay, Kaolinite Powder, and Graphite Powder.

Shaping

Right-click a stack of 5 or more Fire Clay to open the interface and make the following pattern: Template:Grid/Knapping

Using the Crucible

Input Slot - Input Slot for Ores, Ingots, Unshaped Metal or Anvils.
Output Slot - Input Slot for Ceramic Molds to fill with liquid metal.
Temperature Gauge - An estimate of the current temperature of the crucible.
Volume Gauge - An estimate of how much liquid metal is in the crucible.
Status Box - Lists the current liquid alloy/metal inside the crucible, along with it's components and their percentages.

On the Forge

File:Crucible1.png

In order to heat a Crucible, it must be placed on a lit forge. Place it by shift-right clicking on top of the forge block. There will still be a small area around the bottom of the crucible where you can access the forge to add more fuel. Crucibles do not block the airflow of a Bellows.

Smelting Ores

Place the ore you wish to smelt in the Input Slot(1). Once the crucible is hot enough, the ore will melt and the Status Box(5) will display the resulting metal. The Volume Gauge(4) will also increase. Note: Ingots, Unshaped Metal, and Anvils can also be melted in this way.

Place a Ceramic Mold in the Output Slot(2) to retrieve your liquid metal.

Mixing Alloys

A combination of metals can be put into the crucible to make alloys. Note: Liquid Unshaped Metals pour slowly into the crucible instead of all at once, for more precise mixing of alloys. As items are melted, the Volume Gauge(4) will increase, and the Status Box(5) will change to display the current percentages, and the name of the alloy when the percentages are within the needed range. Once the name of the desired alloy appears, it can be removed by placing a Ceramic Mold in the Output Slot(2).

An example of mixing Bronze:

An Unknown combination of metals will result in Unknown Metal being displayed at the top, and if poured into a ceramic mold, will make a useless unknown ingot.

Note: Only the component ingredients can be mixed to create the valid alloy. Adding a completed alloy to a mixture of the alloy, such as adding Unshaped Bronze to a correct mixture of Tin and Copper, will result in Unknown Metal.

With the Blast Furnace

Two crucibles are needed to create a working Blast Furnace. One is used in the crafting of the Blast Furnace block, and the second is placed underneath the Blast Furnace block to catch the smelted Pig Iron.