9.46 Ct wood replacement opal Crystal

9.46 Ct wood replacement opal CrystalA lovely 9. 46 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

27 Ct wood replacement opal in a classic squarish shape

We don't get these very often

A gorgeous small boulder opal with a rare pink and blue colour combination

A small pastel heart boulder opal with light pink

Stands on its own base and back (in the same direction)

20 mm thick

20 Ct wood replacement opal

A pastel rainbow boulder opal heart with a striped pattern

A dreamy large ocean boulder opal with bright green and blue colours

47 Ct triangle boulder opal with gem-grade rainbow stripes

It also has a jet black body tone

A lovely swirly green-blue boulder opal