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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31
A large and stunning rainbow heart boulder opal with a purple-hue
A lovely small green and purple boulder opal specimen shaped like a large tooth or tusk
A lovely striped green and blue boulder opal
51 Ct wood replacement heart opal
~ 87 carats / 17
3.53 Ct 3D Wood Replacement opal Mine_Yaraka A large and stunning rainbowA lovely 3. 53 Ct wood replacement opal. 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 results in the meticulous
