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Our “wood replacement” opal is truly exquisite
A lovely small boulder opal from our inexpensive range
28 Ct wood replacement opal in a classic rectangle shape
A small and bright blue boulder opal
A lovely 8
4.86 Ct 3D Wood replacement opal Inner world Our “wood replacement” opal isA lovely 4. 86 Ct wood replacement opal in a classic rectangle 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
