6.27 Ct 3D Wood replacement opal Inner world if you are after a

if you are after a matching heart set

57 Ct flower carving from wood replacement opal

long arch shaped boulder opal specimen with lovely pinks swirls and a strong white stripe

A lovely blue

27 Ct wood replacement opal in a classic squarish shape

6.27 Ct 3D Wood replacement opal Inner world if you are after aA lovely 6. 27 Ct wood replacement opal in a classic squarish 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