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:
“Nothing could add to the shudder of going into the house, and she seemed so grieved and frightened that my heart was touched, and I was sorry for her that we had ever met.”
—Jane Grey Swisshelm (1815–1884)
“An inch of gold can not buy an inch of time.”
—Chinese proverb.
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