6.36 Ct Wood replacement opal Tucson

6.36 Ct Wood replacement opal TucsonA lovely 6. 36 Ct wood replacement opal in a classic squarish 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

A beautiful pastel rainbow opal that performs best in the sun

blue and purple wood replacement opal

the organic molecules are replaced by silica

A beautiful triangle wood replacement opal

A lovely small purple boulder opal specimen

52 Ct ocean-toned boulder opal radiates a striking green-blue hue with a dark body tone and flattering organic shape

20 mm thick

A lovely free-form wood replacement opal

24 Ct wood replacement opal in a large teardrop shape

Mined by Sue at her Yaraka opal mine in Queensland

50 Ct wood replacement opal in a teardrop shape

50 x 47 mm