Grey gold alloys are made by adding silver, manganese and copper in specific ratios to the gold.
Read more about this topic: Red Gold
Famous quotes containing the words grey and/or gold:
“Father Time is not always a hard parent, and, though he tarries for none of his children, often lays his hand lightly upon those who have used him well; making them old men and women inexorably enough, but leaving their hearts and spirits young and in full vigour. With such people the grey head is but the impression of the old fellow’s hand in giving them his blessing, and every wrinkle but a notch in the quiet calendar of a well- spent life.”
—Charles Dickens (1812–1870)
“I had very good dentures once. Some magnificent gold work. It’s the only form of jewelry a man can wear that women fully appreciate.”
—Graham Greene (1904–1991)