![28.45 CTS CHOCOLATE IRONSTONE WITH WHITE SILICA [STS1545]](https://www.opalrayjewelry.com/wp-content/uploads/2025/12/28-45-cts-chocolate-ironstone-with-white-silica-sts1545-bzaabrle79524.webp)
Description
SEDA GEMS
CHOCOLATE IRONSTONE WITH WHITE OPAL This is a chocolate ironstone from the Yowah opal fields as it has a white silica [opal] in it..This specimen was mined in the Opal boulder fields in Queensland so there is white opal embedded in the chocolate ironstone. This chocolate ironstone takes a great polish and it has some incredible patterns with white opal embedded in it.
![273.50 CTS OPAL WITH COPPER ROUGH -MEXICO [F7923]](https://www.opalrayjewelry.com/wp-content/uploads/2025/12/273-50-cts-opal-with-copper-rough-mexico-f7923-clvptusd03800.webp)
![69.3 CTS OPALITE ROUGH BRAZIL [VS6451 ]](https://www.opalrayjewelry.com/wp-content/uploads/2025/12/69-3-cts-opalite-rough-brazil-vs6451-vvgzsyvt26780.webp)
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