Electrum

Electrum is a naturally occurring alloy of gold and silver, with trace amounts of copper and other metals. Its color ranges from pale to bright yellow, depending on the proportions of gold and silver. It has been produced artificially and is also known as green gold, though the color is more pale yellow than green.

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Source: Wikipedia · Image: Wikimedia Commons · CC BY 2.0

JEWELRYSTORM

Jewelry, demystified — how to choose, size, and care for rings, gemstones, gold and pearls, plus birthstones, metals, and the tools that make it easy.

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