Steph Posted February 28, 2010 Report Share Posted February 28, 2010 What is the range of variation of Vitro Opals? Some months back I heard something which led me to believe that I'd been defining them too rigidly. For instance, I thought they had to have multi-color patches but then I heard that might not necessarily be so. That "originally" it might have been more about the base of the marble and not so much about the ribbons. Looking for confirmation or correction. If you have an opal to show off or have some info to share, that would be awesome. Thanks! Link to comment Share on other sites More sharing options...
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