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Electrum

earth science Maturity 11-13 Next article →

Electrum is a mix of two metals. It is mostly gold and silver. It can also have small bits of copper.

Electrum on quartz Telluride (cropped)
Electrum on quartz Telluride (cropped)

The color changes from pale to bright yellow. This depends on how much gold is in the mix.

People used electrum a long time ago. In ancient Egypt, it covered parts of pyramids.

Mumified head IMG 0515
Mumified head IMG 0515

People also used it to make drinking bowls.

Cup Idalion Louvre N3455
Cup Idalion Louvre N3455

Electrum was used to make the first metal coins. These coins come from a place called Lydia.

BMC 06
BMC 06

Electrum was better than pure gold for coins. It was harder and lasted longer. This helped the coins stay in good shape.

Lydia made coins called staters. One stater weighed about 14.1 grams. One stater was worth a month of pay for a soldier. It was hard to know the exact value of each coin. This was because the mix of gold and silver changed. This made trading difficult. Later, people made coins of pure gold and silver. This solved the problem. But people still used electrum for a long time.

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🖼️ Images & Media (7)
File:Electrum on quartz Telluride (cropped).jpg
Electrum on quartz Telluride (cropped).jpg
File:Πακτωλός.jpg
Πακτωλός.jpg
File:Cup Idalion Louvre N3455.jpg
Cup Idalion Louvre N3455.jpg
File:Griffin protome Louvre Bj39.jpg
Griffin protome Louvre Bj39.jpg
File:BMC 06.jpg
BMC 06.jpg
File:Histamenon nomisma-Alexius I-sb1776.jpg
Histamenon nomisma-Alexius I-sb1776.jpg
File:Mumified head IMG 0515.jpg
Mumified head IMG 0515.jpg
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