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A beautiful small square rainbow boulder opal
A lovely small 2
with green
A lovely 2
light coloured boulder opal with rainbow colours and swirling off-whites and caramels
3.19 Ct carved flower opal πΈ Crystal A beautiful small square rainbowA beautiful small 3. 19 Ct flower carving from 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
US$ 18.00
US$ 140.00
US$ 145.35
