Australian Yowah Boulder Opal – Electric Opal in Ironstone Queensland A beautiful Queensland boulder opal from Yowah, displaying beautiful electric opal amongst a pretty ironstone background. At 29.6mm x 13.5mm x 5.7mm, this is a well-proportioned stone that would make a lovely large ring or a good size pendant when set. Boulder opals are solid natural opals formed within ironstone host rock, making them exceptionally durable and entirely natural — no treatments or enhancements. Specifications Dimensions: 29.6mm x 13.5mm x 5.7mm Type: Queensland boulder opal Colour: Electric opal in ironstone Finish: Professionally cut and polished Suggested use: Ring or pendant Origin: Yowah, Queensland, Australia SKU: 612 Notes Ethically mined from Yowah, Queensland, Australia. Each boulder opal is unique — colour and pattern will vary slightly from images due to the nature of natural gemstones. Contact Opal Essence for more information.