2.01 Ct teardrop wood replacement opal Type_Set 24 Ct wood replacement opal

24 Ct wood replacement opal in a large teardrop shape

purple and green colours in direct sunlight

A stunning bright green-blue boulder opal

A beautiful and rare bright green crystal  / wood replacement boulder opal

We cut it into a circle to give it a a modern edge

2.01 Ct teardrop wood replacement opal Type_Set 24 Ct wood replacement opalA beautiful 2. 01 Ct wood replacement opal with a pin fire pattern in purple and green colours. 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