43 g small purple boulder opal specimen Shape_Geometric As a centrepiece this opal

As a centrepiece this opal will be amazing in any jewelry creation

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

with a bright green tip

but because the remaining internal structures create a mesmerizing inner world that is visible through the transparent and  translucent opal

43 g small purple boulder opal specimen Shape_Geometric As a centrepiece this opalA lovely small triangle blue and purple opal specimen. 43 grams 48 x 37 mm 12 mm thick Natural solid boulder opal specimen. Mined by Sue at her Yaraka opal mine in Queensland, Australia. Sits on its flat base in one direction.