green gold | ˈgrēn gōld
Gold which contains a high proportion of silver, causing a greenish hue
Green gold results from the natural combination of gold and silver that creates an alloy named electrum. While called “green gold”, the resulting alloy is subtle in appearance, often not visible to the untrained eye. It is also not any stronger than pure yellow gold. To address this, it is often further alloyed with zinc or nickel to strengthen it. Green gold is used to accent some other pieces of jewelry, often in leaf shapes or flowers, and it has been used for centuries as a decoration, including in Ancient Egypt as a coating for the tops of pyramids and obelisks. Electrum was also the primary component of the first known metal coins.