LARGE FLUORESCENT HYALITE OPAL
A Large Fluorescent Hyalite Opal. This piece lights up under short wave ultraviolet light. Hyalite Opal is probably the best known fluorescent mineral from Australia. A superb Aussie fluoro to grace your collection.
Squaretop Mountain, Queensland, Australia.
13.5cm x 11.1cm x 6cm, 747g.
Hyalite: SiO2 · nH2O.