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94 Ct wood replacement opal in a modern hexagon shape
A very unusual and bright sea green boulder opal
Opal formation commences when silica dissolves in water
with a bright green tip
A lovely 8
4.25 Ct 3D Wood Replacement opal Shape_Heart 94 Ct wood replacement opalA lovely 3. 20 Ct 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 meticulous
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