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What makes antique glass turn blue ?

April 26, 2017Antique BLUE garden glass Home Remodeling turn

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What makes antique glass turn blue ?

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It’s the trace elements they used in making the glass that’s oxidizing. For example, copper oxidizes to a bluish-green color. So, if there were trace amounts of copper in the glass when they made it, it will turn over time to a bluish-green tint.