1.92 Ct 3D Wood Replacement opal Type_Tiny A beautiful small striped boulder

A beautiful small striped boulder opal with rainbow colours

49 Ct small black boulder opal is a wonderful example of mother nature's skill

Each sold separately

13 Ct wood replacement opal

An amazing rainbow striped boulder opal with an unusual golden-hued body tone (background)

1.92 Ct 3D Wood Replacement opal Type_Tiny A beautiful small striped boulderA stunning 1. 92 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