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:
“A woman with her two children was captured on the steps of the capitol building, whither she had fled for protection, and this, too, while the stars and stripes floated over it.”
—Jane Grey Swisshelm (1815–1884)
“‘She has got rings on every finger,
Round one of them she have got three.
She have gold enough around her middle
To buy Northumberland that belongs to thee.”
—Unknown. Young Beichan (l. 61–64)