dirtflicker
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This topic may or may not have come up in past threads on this forum...however I was wondering how these people that sell those deeeeeeep amethyst bottles on ebay get them that purple? I have left bottles in the sun for six months only to find that they are just barely turning? I know that they irradiate (gama rays) them some how, but how? I would like to turn a few bottles like that so I may add some more colors to my display shelf. I understand it has something to do with the MANGENESE in the glass that makes the bottle turn. Any help on this topic would be appreciated.
DF
DF