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2.65 Ct wood replacement opalA small purple 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

13 Ct wood replacement opal

perfect for a ring or pendant

not only because it is an opalised fossil

A lovely free-form wood replacement opal

At 16 mm x 8

We are always huge fans of this unusual colour combination

This remarkable process results in the meticulous preservation of intricate internal structures

A lovely pentagon boulder opal with a rolling bright blue and green flash

you receive a 15% discount on them

What is Wood Replacement opal

A lovely small 2

39 Ct oval boulder opal is a striking choice with its vivid rainbow stripes and versatile size