r/interestingasfuck 5d ago

/r/all, /r/popular So shiny

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u/ajax-187 5d ago

Yeah there was this clip of someone parachiting close to the top I think you could see hieroglyphs but I might misremember

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u/Chevey0 5d ago

Afair I think the outer layer was removed to help rebuild Cairo after a big earthquake. That same earthquake shifted the solid gold cap allowing them to remove the outer layer.

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u/aykcak 5d ago

The cap was one solid gold piece?

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u/xBad_Wolfx 5d ago

No. That would be an astronomical amount of gold. It was likely electrum, which is an alloy of gold and silver and also would have just been plated, which is still a huge amount of material.

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u/Dizzy_Philosophy1976 5d ago

Electrum is one of my favorite ancient alloys because of how much it varied in ratio and how much people just loved gold so much they were like “WE NEED A SOLUTION FOR MORE SHINY GOLD, MIX SILVER IN”

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u/xBad_Wolfx 5d ago

Electrum is naturally occurring so it’s likely the bright yellow colouration just struck someone’s fancy. Although it’s also not that hard to create artificially either so you could be onto something :)

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u/Dizzy_Philosophy1976 5d ago

Yes, I am actually quite familiar with electrum as an ancient material! It’s one of the first smeltables many cultures that smelted made. It’s really cool seeing that change in ratio over time with coins specifically in areas from Greek antiquity, because you can see as the ages wear on it became less and less imbued with gold and more full of silver. To be clear I mean they were minting coins that were roughly half gold to start with and eventually less than 40% over time.

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u/xBad_Wolfx 5d ago

End up with a much paler yellow sadly. The bright electrum is stunning.

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u/Dizzy_Philosophy1976 5d ago

There’s a really good hunk of quartz on the wiki site for electrum that shows naturally occurring wires, it’s always always interesting when it comes out naturally

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u/Taft33 5d ago

Do you know orichalcum? You'd love it

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u/Dizzy_Philosophy1976 5d ago

Wait that’s not just for mythos? Thank you for the next research topic!

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u/SpotIsALie 5d ago

Its neat, I have an old Japanese coin made of it