This opal is outstanding. Sorry Australia but this little beauty was 'Born in the U.S.A'......Oregon to be precise. Photographed by Tino Hammid and featured in this years edition of The Handbook of Gemmology.
Russian Sphene 14.50ct. Titanite (Sphene). The mineralogical name Titanite comes from its titanium contents. Sphene is a very rare brilliant yellowish-green, green, orange or brown gemstone with a high lustre.
Synthetic Corundum grown by the flux method, (left) Chatham ruby on platinum sheet, 2.5 cm, Chatham Inc.; (center) Ramaura ruby, 6.2 cm, J.O. Crystal Company; (right) Kashan ruby, 4.0 cm, Ardon Associates Inc. Photo by Joe Budd