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A beautiful bright green gem small boulder opal
you receive a 15% discount on them
49 Ct small black boulder opal is a wonderful example of mother nature's skill
A stunning rectangle green wood replacement opal
A lovely 5
11.03 Ct Wood replacement opal Parcel A beautiful bright green gemA lovely 11. 03 Ct wood replacement opal in a 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
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US$ 14.00
