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5.08 Ct wood replacement opalA lovely 5. 08 Ct wood replacement opal in a classic oval 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

A fun teardrop boulder opal pair

A beautiful boulder opal with green

We cut it into a circle to give it a a modern edge

Its vibrant hue and exceptional clarity make it a unique and beautiful gemstone

70 Ct wood replacement opal

15 Ct wood replacement opal

A lovely pastel and caramel boulder opal pair

A pretty lighter blue

A lovely pastel triangle opal with a pink stripe

A beautiful black boulder opal with bright greens and blues

A beautiful small teardrop boulder opal

A lovely deep purple and violet boulder opal