chrisgiordano
chrisgiordano

Coal, clinker, coke

Docent blacksmith at Pioneer Village, Russ LoBue, holds out materials used in and created by forging. On the left is coal, a classic fuel for smithing, however,...
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Docent blacksmith at Pioneer Village, Russ LoBue, holds out materials used in and created by forging. On the left is coal, a classic fuel for smithing, however, when heated it gives off volatile gasses until the impurities are burned off and the coal eventually becomes a high heat source known as coke, or baked coal, seen on the right. In the center is what's known as a "clinker," or a chunk of the heavier-than-air impurities like cadmium and zinc that are burned off in the process.
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