6.96 Ct 3D Wood replacement opal Type_Pipe Its vibrant hue and exceptional

Its vibrant hue and exceptional clarity make it a unique and beautiful gemstone

48 Ct wood replacement opal in a classic rectangle shape

A fun blue/purple heart boulder opal

21 Ct boulder opal is a rare gem that showcases bright pink and green with a black body tone

6.96 Ct 3D Wood replacement opal Type_Pipe Its vibrant hue and exceptionalA lovely 6. 96 Ct wood replacement opal in a soft half circle 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