Pyrite enjoyed brief popularity in the 16th and 17th centuries as a source of ignition in early firearms.
The 16th century marked the first time a plan such as Balthazar’s had become technologically feasible. Until then, the only firearms were matchlocks – heavy, unwieldy affairs which could neither be concealed from view nor fired without a smoldering fuse, a fuse which burned at the mercy of the elements and which gave off a tell-tale whiff of smoke to any nearby sentient target. [source] |