Can You Recycle Blue Gold? Who Ever Heard of It?

Can You Recycle Blue Gold? Who Ever Heard of It?

We’ve already written about pink gold, rose gold, white gold, and even green gold on the Specialty Metals blog. (See related posts below.) We thought we’d seen just about every color, then we found an article entitled “What Can Make a Piece of Gold Turn Blue?” that Esther Inglis-Arkell wrote for io9.com. 

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