227.3cts - Australian Boulder Opal Specimen Polished

A Beautiful, polished Koroit nut specimen from Queensland, Australia.

Displaying predominantly green with blue and purple colouration in intricate tribal patterns across the whole stone.

This specimen has the potential to be cut into multiple stones to value add.

Total weight - 227.3cts 

Area of Mine - Koroit, Outback Queensland, Australia 

Dimensions - 45.7mm x 31.8mm x 22.5mm

Formation - Boulder opal on its natural mother ironstone 

Shape - freeform

Colours - blue, green and purple