4.48 Ct 3D Wood Replacement Opal Colour_Pink 70 Ct wood replacement opal

70 Ct wood replacement opal

A lovely free-form boulder opal with a rolling rainbow pattern

91 Ct wood replacement opal in a large geometric shape

A lovely 8

Their round shape and swirly patterns remind us of two beautiful planets

4.48 Ct 3D Wood Replacement Opal Colour_Pink 70 Ct wood replacement opalA lovely 4. 48 Ct wood replacement opal in a classic rectangle 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