BOULDER OPAL

Boulder opal<!--TgQPHd|[]--> is <!--qkimaf aQuUQb_z/HugV6--><!--cqw1tb aQuUQb_z/HugV6-->a highly valuable, durable variety of precious opal formed within ironstone or sandstone boulders, found exclusively in western Queensland, Australia

BOULDER OPAL

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Boulder opal is a highly valuable, durable variety of precious opal formed within ironstone or sandstone boulders, found exclusively in western Queensland, Australia