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If most gold jewelry is an alloy, why is some white and some yellow?
如果大多數黃金首飾是合金的話，為什么有的是白色有的是黃色呢？
The final appearance depends on the type of alloy metal used.
珠寶外觀最終取決于所使用合金金屬類型。
Alloys made with white metals like silver, palladium and nickel create white-colored gold.
用銀、鈀和鎳等白色金屬制成的合金為白色的黃金。
Adding some copper to the alloy will restore the yellow color, but too much copper can turn the gold reddish.
在合金中加入銅可以恢復為黃色，但是銅過量會導致黃金變紅。
The color of gold jewelry doesn’t reveal how much gold is in it — a piece of white gold may have the same number of carats as a piece of yellow gold.
黃金首飾的顏色并不能看出其含金量。一塊白金的含金量可能與一塊黃金的含金量相同。
But, it has a different alloy metal, and so it has a different color.
由于黃金里摻有不同的合金金屬，因此黃金會呈現出不同的顏色。
Unlike white gold, fool’s gold has no gold in it at all. It’s a mineral called iron pyrite.
與白金不同，愚人金根本不含任何黃金。它其實是一種叫做黃鐵礦的物質。
Black gold isn’t gold either, it’s oil. Which is also valuable, but doesn’t look as good on your fiancee’s finger.
黑金也不是黃金，而是石油。黑金同樣很值錢，但是戴在未婚妻手上可不那么美觀。
譯文為可可英語翻譯，未經授權請勿轉載!
