Electrum Posted on 9th November 201526th July 2021 by ThePD (The Project Definition) Electrum is a natural alloy of gold and silver with trace amounts of copper and other metals. Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window) Related Posted in Substance and tagged metal. ThePD (The Project Definition) ThePD has been developing the Preferred Project Definitions based on the actual project execution and operation experiences and knowledge with the Project Language, and sharing with you daily basis.