Grey gold alloys are made by adding silver, manganese and copper in specific ratios to the gold.
Read more about this topic: Colored Gold
Famous quotes containing the words grey and/or gold:
“So, instead of spending my strength quarreling with the hand, I would strike for the heart of that great tyranny.”
—Jane Grey Swisshelm (1815–1884)
“We ask which means most, for us, all the genii
Or one man who, for us, is greater than they.
On his gold horse striding, like a conjured beast,
Miraculous in its panache and swish?”
—Wallace Stevens (1879–1955)