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the organic molecules are replaced by silica
A lovely small teardrop boulder opal from our inexpensive range
51 Ct wood replacement heart opal
A very pretty ocean coloured boulder opal with a striped pattern
A beautiful small heart boulder opal
5.32 Ct wood replacement opal Type_Pair the organic molecules are replacedA lovely free form 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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