4.25 Ct 3D Wood Replacement opal Shape_Heart A lovely green and blue

A lovely green and blue rectangle boulder opal

Each sold separately

Opal formation commences when silica dissolves in water

Mined by Sue at her Mt

4.25 Ct 3D Wood Replacement opal Shape_Heart A lovely green and blueA lovely 3. 20 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