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 face peered. All the grey night
In chaos of vacancy shone;
Naught but vast sorrow was there—
The sweet cheat gone.”
—Walter De La Mare (1873–1956)
“The enquiring fields, courtesies
And tribulations of the air
Be still and give them peace:
The girl in the gold hair
With her young man in clover
In shadow of the day’s glare ...”
—Allen Tate (1899–1979)