An extracted material that needs to be extracted further.

Tephra-> Red Bleckblende

Aabam, Silver, Calamine and Sanguinite

Furnace with ~44 Coke per 1k Red Bleckblende

Blast Furnace with ~100 Rock Oil per 1k Red Bleckblende

Blast Furnace with ~32 Fuming Salt per 1k Red Bleckblende

Volcanic Ash

Magmum

Cinnabar

Galbinum