Molybdochalkos is an alloy of copper and lead. It was known by Greek alchemists as early as the 10th century. It contains 90% lead 10% copper.
References
Molybdochalkos Wikipedia(Text) CC BY-SA
Molybdochalkos is an alloy of copper and lead. It was known by Greek alchemists as early as the 10th century. It contains 90% lead 10% copper.