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A lovely pentagon boulder opal with a rolling bright blue and green flash
matched in colours but not in size
Our “wood replacement” opal is truly exquisite
20 Ct wood replacement opal
and turquoise
4.94 Ct 3D Wood replacement opal Tucson A lovely pentagon boulder opalA lovely 4. 94 Ct wood replacement opal in a modern hexagon shape. What is Wood Replacement opal? Opal formation commences when silica dissolves in water. At our Russells opal mine we have found that this silica solution occupies a void most probably left by decaying tree roots or branches. In cases where the silica infiltrates organic material before complete decomposition occurs, the organic molecules are replaced by silica. This remarkable process
