description: <p style="text-align: justify;">LOCALITY: Quilpie, Queensland, Australia <br /><br /></p> <p style="text-align: justify;">1 3/4" across</p> <p style="text-align: justify;"> </p> <p style="text-align: justify;">This colorful opal specimen consist of a thin polished veneer of opal on an ironstone matrix.  This type of opal is referred to as "Boulder Opal" since it is extracted from large ironstone boulders.  Boulder opal only occurs in Queensland.  Since boulder opal specimens have such a high ironstone content, they are generally not valued per carat.</p> <p style="text-align: justify;"> </p> <p style="text-align: justify;">This piece was bought during a buying trip to Queensland in July 2016 </p> <p style="text-align: justify;"> </p> <p style="text-align: justify;">Photo by Matthew Webb of Melbourne, Victoria, Australia  </p> <p style="text-align: justify;"> </p>

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