5.88 Ct 3D Wood replacement opal Type_Tiny 67 Ct purple wood replacement

67 Ct purple wood replacement opal with a teardrop shape

A larger boulder opal heart with a thick green-blue opal stripe

larger boulder opal heart

95 Ct purple wood replacement opal with a teardrop shape

A beautiful 4

5.88 Ct 3D Wood replacement opal Type_Tiny 67 Ct purple wood replacementA lovely 5. 88 Ct wood replacement opal in a classic rectangle 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