6.27 Ct 3D Wood replacement opal Background_Light

6.27 Ct 3D Wood replacement opal Background_LightA 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

85 Ct boulder opal features a captivating green hue in a versatile half-circle shape

A beautiful large free-form boulder opal with a green and blue striped pattern

A beautiful triangle wood replacement opal

lime green

A lovely purple arc boulder opal specimen

We think the triangle shape would make it a lovely large ring or pendant stone

Sits on its side in one direction

A fun free-form boulder opal with green

A lovely green and purple wood replacement opal

79 Ct wood replacement opal in a modern half circle shape

A stunning 6

A beautiful black boulder opal with bright greens and blues