6.85 Ct 3D Wood Replacement Opal Tucson Mined by Sue at her

Mined by Sue at her Mt

A beautiful small 3

50 x 47 mm

A beautiful blue heart boulder opal

55 Ct green-blue boulder opal is a small yet bright gem with stunning colors

6.85 Ct 3D Wood Replacement Opal Tucson Mined by Sue at herA stunning 6. 85 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