Pay in 4 interest-free payments of $31.25 Learn more
Ships within 48 hours · Estimated delivery Aug 18 - Aug 23
A lovely boulder opal heart with a great stripy pattern
82 Ct wood replacement opal
blue and grey boulder opal specimen
110 x 50 mm
A very large and rare boulder opal from our Mt
2.13 Ct heart wood replacement opal Colour_Green A lovely boulder opal heartA lovely 2. 13 Ct wood replacement heart 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
