9.46 Ct wood replacement opal Type_Pipe A lovely blue swirly boulder

A lovely blue swirly boulder opal heart

Each sold separately

A stunning 6

24 Ct wood replacement opal in a large teardrop shape

9.46 Ct wood replacement opal Type_Pipe A lovely blue swirly boulderA lovely 9. 46 Ct purple wood replacement opal with a teardrop shape. 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