7.49 Ct 3D Wood replacement opal Parcel but because the remaining internal

but because the remaining internal structures create a mesmerizing inner world that is visible through the transparent and  translucent opal

A large green-blue opal that reminds us of the reefs and tides

A large electric blue

We don't get these very often

A very large and rare boulder opal from our Mt

7.49 Ct 3D Wood replacement opal Parcel but because the remaining internalA lovely 7. 49 Ct wood replacement opal in a classic oval 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 process