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8.61 Ct 3D Wood Replacement OpalA lovely 8. 61 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

43 Ct wood replacement opal in a hexagon shape

A small and bright blue boulder opal

A lovely 7

but because the remaining internal structures create a mesmerizing inner world that is visible through the transparent and translucent opal

A lovely small rainbow boulder with a lighter lilac-tone background

A beautiful crystal opal

Prices are calculated at checkout

A beautiful wavy boulder opal from our inexpensive range

A beautiful stripy rainbow boulder opal with a honey-hued lighter body tone

A lovely rectangle boulder opal with a pinfire rainbow pattern

A lovely blue

50 x 47 mm