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3.53 Ct 3D Wood Replacement opalA lovely 3. 53 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

8 x 19 x 5

57 Ct flower carving from wood replacement opal

Opal formation commences when silica dissolves in water

A small and bright blue boulder opal

Two lovely small rainbow boulder opal pieces

with light orange

purple and green colours in direct sunlight

A lovely green oval boulder opal

A very unusual and bright sea green boulder opal

you receive a 15% discount on them

A very pretty rainbow boulder opal with a darker lilac-hued background

blue and grey boulder opal specimen