7.49 Ct 3D Wood replacement opal Type_Pair

7.49 Ct 3D Wood replacement opal Type_PairA lovely 7. 49 Ct wood replacement opal in a classic oval 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 process

32 Ct wood replacement heart opal

~ 87 carats / 17

A lovely 2

the wood structure remains visible within the opal

A lovely small boulder opal from our inexpensive range

21 Ct boulder opal is a rare gem that showcases bright pink and green with a black body tone

A very unusual and bright sea green boulder opal

A beautiful rainbow pair of heart boulder opals

who's colours perform best in full sun

A lovely small light triangle opal with pastel colours

45 Ct wood replacement opal

A rare and unusual dark purple wood replacement opal