2.39 Ct wood replacement opal Crystal They feature pink and bright

They feature pink and bright green and blue colours

A fun green wood replacement opal mushroom carving

A beautiful 10

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

This special wood replacement opal has a classic oval shape and lovely green

2.39 Ct wood replacement opal Crystal They feature pink and brightA beautiful 2. 39 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