Highly figurative 14.11ct Koroit boulder Opal

This exotic boulder opal is very well marbled with a swirling matrix that frames glittering pops of pure opal crystal. It has a glossy luster, and measures 19.5mm x 12.8mm x 7.6mm. This is an untreated boulder opal, it contains pure opal and matrix. This gem was sourced from Queensland, Australia.