20 Carats, Natural Australian Opal, Belemnite In The Rough, AAA Gem With Amazing Crystal B5 Bright Crystal Colours. Full Spectrum it is blinding how bright this will be when cut. Both ends show colour and it is 11mm thick and 35mm long. Hard to repeat this price for such a rare gem in this quality. Both it at a bargain as a parcel selling it at a great price. This is as good as rare gem of this kind gets. 100 million plus year old opalised fossil from down under with crazy colours.
