Beautiful large Australian Boulder Opal solid stone from Quilpie, South West Queensland, Australia.
Weight: 87.35 carat
Boulder Opal is mined in vast, often isolated areas in western parts of Queensland, Australia.
Characteristic of Boulder Opal is the brown ironstone host rock. When this opal is cut, the natural host rock is left on the back of the stone. This opal can display the full spectrum of colours and patterns, very often showing unique and unrepeatable “pictures” like paintings.