574.5cts - Large Tan Tribal Queensland Boulder Opal. Polished Specimen Yowah Formation - opalised fossil /

Formation - opalised fossil / shell fossil replacement opal

This stone displays a full face of deep blue and green colouration in flag and chaff patterns on beautiful transparent crystal opal

These types of specimens are ever growing in rarity

blue and green colouration in flag and and chaff patterns

Displaying predominantly blue and green colouration in a flag patterns

574.5cts - Large Tan Tribal Queensland Boulder Opal. Polished Specimen Yowah Formation - opalised fossil /Art of Opal Candidate If not sold Pieces like this could be tomorrows Art of Opal masterpieces. A Large Australian Boulder Opal Tribal Specimen from the Koroit nut formation with colour and pattern in the skin of the nut. This stone displays blue and green colouration with desirable white potch opal contrasting with beautiful tan earth tones in intricate tribal patterns unique to the area. Cut to a large freeform shape with a quality finishing polish.