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 great black presence beats its wings in wrath.
Above the boneyard burn its golden eyes.
Some small grey fur is pulsing in its grip.”
—Anthony Hecht (b. 1923)
“John Brown of Ossawattamie
Who died to set Abstraction free
Stole Washington’s gold-handled sword
Less for the gold than for the Lord....”
—Allen Tate (1899–1979)