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Treatment of andesine

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I was wondering if anybody knows if Andesine is treated to enhance the appearance of this stone, such as diffused or heat treated?

asked Jul 2, 2014 by tlbenton (120 points)

1 Answer

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Coloration is by diffusion process, using copper. More information on this gemstone can be found here: minerals.net/gemstone/andesine.aspx

answered Jul 7, 2014 by hershel (46,460 points)
 


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