E04 - Sphene - a rare gemstone that has more dispersion than a diamond
Kat Florence Presents-Journey To The Stone With Don Kogen by Don Kogen Don Kogen world renowned Gem Hunter discusses Sphene, a rare gemstone that has more dispersion than a diamond. He takes us through the remote Kola Peninsula of Russia, Madagascar, Zimbabwe, and Brazil in the journey to understand Sphene. Sphene contains a rare earth element, cerium, in its crystal structure, which combines with its titani ... See more
May 03 2022