Molybdochalkos Alloy of copper and lead Molybdochalkos is an alloy of 8-12% copper and 88-92% lead. It was known by Greek alchemists as early as the 10th century. External links[edit] http://www.levity.com/alchemy/zosimus_crab.html This alloy-related article is a stub. You can help Wikipedia by expanding it.vte