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6.95 Ct wood replacement opalA lovely 6. 95 Ct purple wood replacement opal with a teardrop 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

96 Ct wood replacement opal in a soft half-circle shape

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

A triangle matrix boulder opal

A lovely small and colourful boulder opal specimen

This remarkable process results in the meticulous preservation of intricate internal structures

82 Ct wood replacement opal

67 Ct purple wood replacement opal with a teardrop shape

This oval shaped boulder features beautiful purple hues and a little caramel

A lovely small hexagon boulder opal

A lovely small triangle boulder opal

the organic molecules are replaced by silica

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