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92 Ct wood replacement opal
A lovely small rainbow boulder with a lighter lilac-tone background
94 Ct wood replacement opal in a modern hexagon shape
A fun teardrop boulder opal pair
A lovely opal with pretty of pink and a lilac-hued lighter body tone
6.86 Ct wood replacement opal Tucson 92 Ct wood replacement opalA beautiful triangle wood replacement opal. 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 results in the
