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A lovely purple boulder opal from our inexpensive range
When you purchase 2 or more opals from our 'Create a parcel' category
35 Ct wood replacement opal in a free-form shape
This majestic 6
1.32 Ct heart wood replacement opal Parcel A lovely purple boulder opalA lovely 1. 32 Ct wood replacement heart 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
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