Slag

26 clues
Lava
Dross
Waste
Cinder
Refuse
Debris
Scoria
Misses
Metal waste
Metal refuse
Smelter waste
Smelter stuff
Metallic waste
Waste material
Smeltery waste
Smelting waste
Volcanic output
Smeltery refuse
Smelting refuse
Worthless matter
Smeltery residue
Refinery residue
Smelting residue
Smelting product
Smelting byproduct
Refinery by-product
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